Teen Pregnancy - 1130 Words

Caitlin Burton English 4 Mrs. R Hill 22, October 2017 16 and Pregnant Does Not Promote Teen Pregnancy There is no question that teen pregnancy is a worldwide issue in today’s society. Every year thousands of young, unprepared teenage girls face the decision whether to become a mother or to give their baby up for adoption for a better life. Some mothers choose to give their baby up because they feel as if they could not give the baby what is needed to have a good life. If you have ever heard of the show â€Å"16 and Pregnant† both sides of the situation have happened. Some girls on the show choose to be a mother and others choose to give their baby up for adoption, because they feel it is what is best for their child. The big question is†¦show more content†¦While focusing on this study she also points out that MTV focuses on the girl’s relationships with the baby’s father or even the girl’s parents, made it more effective for girls not to want to end up like the girls on the show. A third study shows the rates lowered to 5.7 percent as indicated in the previous studies. They thought the cause was because of the show â€Å"16 and Pregnant.† A former â€Å"16 and Pregnant† mom Janelle states, â€Å"imagine being in prison, that’s what motherhood is like† (qtd. in Janelle) I do not agree with Janelle’s statement. I do not think that being a teen mom is like being in prison, but I do feel like being a teen mom has harder days than others. I also feel like I am trapped some days but would never compare it to being in prison. By this statement viewers still thought that her saying that would still make the rates go down because no one wants to end up in prison. After every episode of â€Å"16 and Pregnant† there is a website at the end of the show that you can go to and learn more about using protection and STD’s or other needed information. You can visit, StayTeen.org or itsyoursexlife.com. These websites are promoted by MTV. The show â€Å"16 and Pregnant† followed girls’ pregnancies from about 31 weeks up until the day of the birth and then later MTV came out with the sequel entitled â€Å"Teen Mom† which showed what life was like after the baby was born. After the show was over, each girl had a documentary at the end telling the viewers how they feltShow MoreRelatedTeen Pregnancy1426 Words   |  6 PagesIntroduction Teen pregnancy is often unplanned and challenging for the future life of mother and child. The increase risk of health problems for both mother and baby occur during teen pregnancy. Teen pregnancy impacts adolescent development in all aspects: physical, emotional, cognitive, and social development. Negative consequences result from teen pregnancy include: low income, increased school dropout rates, lower educational levels, and increased rates of substance abuse (Garwood, Gerassi, ReidRead MoreTeen Pregnancy1023 Words   |  5 PagesDoes access to condoms prevent teen pregnancy? Adolescent pregnancies remain a concern in public health worldwide. The World Health Organization (WHO) has indicated that annually about 16 million girls between 15 and 19 give birth. Indeed, in many countries policies and programs are developed and implemented for the prevention of teen pregnancy and reduction of risks and consequences it might cause. Furthermore, that a teenager becomes pregnant poses a risk to her health, her life and the fetusRead MoreTeen Pregnancy1246 Words   |  5 PagesA topic in American society that has proved to be an ongoing, and growing issue is that none other than teen pregnancy. In recent years, teen pregnancy rates have been increasing, which ultimately led to the topics increase of public and media attention. In American society teen pregnancy is often associated with negligence, as well as being irresponsible. In American society sex education for children is underdeveloped and instead society tends to use fear and shame to highlight/combat the dangersRead MoreTeenage Pregnancy And Teen Pregnancy1546 Words   |  7 PagesTeenage pregnancy is pregnancy in human females under the age of 20 at the time that the pregnancy ends. Low-income communities have the highest teenage pregnancy rates in the United States. Because of the fact that this is a very controversial issue in the United States, it is very important that most questions be addressed. Questions like, why is a teenage girl in Mississippi four times as likely to give birth as a teenage girl in New Hampshire? Or why is the teen birth rate in Massachusetts 19Read MoreTeen Pregnancy : Teenage Pregnancy1404 Words   |  6 PagesLauryn Jones Block 5 4/27/16 What is Teen Pregnancy? Teenage pregnancy is pregnancy in human females under the age of 20. A girl can become pregnant from sexual intercourse after she has begun to ovulate which can be before her first menstrual period, but usually occurs after the onset of her periods. In well-nourished girls, menarche usually takes place around the age of 12 or 13. Most teenage girls don t plan to get pregnant, but many do. Teen pregnancies carry extra health risks to both the motherRead MoreTeenage Pregnancy And Teen Pregnancy1057 Words   |  5 PagesTeenage pregnancy is a common thing here in America. It seems teens are getting pregnant more than the average married couple. There are some risk factors teen moms face and there is also another great turn outs. There is a major difference between the two. It’s important to tell teens the turnouts of teen pregnancy for the good and bad parts. There are risks of having sex, teen moms can make a difference for her and the baby, the risk of having HIV and/or any other STD’s, and the effects on theRead MoreTeenage Pregnancy And Teen Pregnancy1341 Words   |  6 PagesTeenage pregnancy is a prominent dilemma in our nation because it continues to place adolescents into delinquency. According to the United States Health and Human Services, three out of ten American teen girls will become pregnant at least once before they reach the age of twenty. That is nearly 750,000 teen pregnancies in a year (1) (HHS Pg.2 2014). Also according to U.S. Department of State, teen pregnancy budgets the United States and tax payers approximately seven billion dollars annually (2)Read MoreTeenage Pregnancy And Teen Pregnancy1664 Words   |  7 PagesTerrazas English 4 Miss Stahlecker 4 November 2015 Teenage Pregnancy According to cda.org, in 2013, a total of 273,105 babies were born to women that were in between the ages of 15-19 years old. Teenage pregnancy is a major concern in today’s society. This paper will talk about teenage pregnancy, statistics, ways to prevent teenage pregnancy, and after birth options. So why is teenage pregnancy so important? Some people are concerned about teens getting pregnant at such an early age. There are otherRead MoreEffects Of Teen Pregnancy On Teens1643 Words   |  7 PagesEvery teen has dream about how they want to graduate from high school and then go to college, but some teens are not willing to take the challenge. Some of these teens want to drop out of high school and other teens want to keep furthering their education. For some there are obstacle that life throw at them to be able to accomplish their goals. Earning an education is challenging enough, but when there is a teen parent trying to finish their education it becomes more difficult than it would beRead MoreThe Effects Of Teen Pregnancy On Teens978 Words   |  4 Pagesare getting younger in age, and the birth rate is rising higher. Mississippi has the highest birth rates in teen pregnancy, and has held this title for the past few years. This problem has had such a rise to fame becau se this is a problem that can be prevented. Parents and communities should take action to help lower the teen pregnancy birth rate in Mississippi. Since the birth rate in teens is so high that means there is more need of government assistance. This becomes such a problem in states because

The Art of Music Essay - 1253 Words

The art of music Next to the Word of God, the noble art of music is the greatest treasure in the world. ~ Martin Luther Renaissance music, as in many arts, was widely spread by the innovation of the printing press, causing many commons to learn about music themselves. From it’s composers, one being Palestrina, another being Josquin Desprez to the many components involved with it such as: textures, melodies, harmonies, and the words and music, to the styles of music, Sacred and secular music, to the instruments used during the period, some being lutes, viols, and other miscellaneous instruments; the hurdy-gurdy, the crumhorn and the sackbut. Renaissance music is extremely important to the progress of the period, in fact, it was ideal†¦show more content†¦From lutes, viols, and other instruments, their music established a symbolic mark in musical history, but for each of these musical devices play in harmony in their pieces, they needed specific components. Many music components go into the creation of Renaissance music; each has it’s own role in each piece, making this periodâ₠¬â„¢s music unique. In the Renaissance, vocal music was far more significant than instrumental music making the words and music of great importance which led to composers using methods, being word-painting, to enhance the meaning and emotion in vocal music. Word painting is a musical representation of specific poetic images. For example ‘heaven’ would be a high, melodic note, or ‘running’ would be a series of rapid notes. The texture in most Renaissance music is usually scored from three to six voices, normally in the lowest bass register. This has made a significant impact on musical history, considering the change between medieval music and Renaissance music, the singers’ voices are all similar in rhythm and tune creating a more homogenous sound, unlike medieval music. In the renaissance, there was greater concern to the flow and progression of chords in the melody. This has affected many musical pieces in the Renaissance by creating an effect of s moothness to the ear, making it significant to the development in music. The main consonances of the middle ages were perfectShow MoreRelatedMusic Is An Art, Music, And Music1494 Words   |  6 PagesMusic is an art, music is entertainment, and music is good for the soul. Stevie Wonder said â€Å"Music is a world within itself, it is a language we all understand.† Music can change our moods, bring up emotions, and trigger memories. Although, the changes in rock roll throughout the last sixty years have been significant, the way music makes us feel continues to be the same. Periodically throughout the history of music, there are special artists/bands that come along at the perfect time with the perfectRead MoreMusic, Music And Art2244 Words   |  9 Pagesentertainment industry as movie, music and art in general. For the past few centuries it has evolved and developed to the completely new level, where to be as an artist is a significant job. Although, artists have never been on their own, they always had a person who has been â€Å"looking after† them, these days it is called manager or producer. According to the Kazi Uddin, there are only 3 recording major labels these days : Warner Music, Sony Music and Universal Music Group. Warner music controls 19% percent ofRead MoreIs Art And Music?1353 Words   |  6 PagesWhat truly is Art and Music? Is it something that an individual made just to express their imagination? The practice of Art in any form has created foundations of what is today a â€Å"society†. One may not know this but the aesthetics of â€Å"Art and Music† in Criminal Justice plays a vital role int o the human psychology; allowing to regress the mind of a criminal or a detainee. In becoming a Homicide Detective, it is imperative to have a calm atmosphere when someone is being interrogated in order to getRead MoreMusic Is an Art Form1504 Words   |  7 PagesTERM PAPER â€Å"Music is generally perceived as the most universal of all art forms.† The literal meaning of the word music according to any dictionary is: art of combining vocal or instrumental sounds in a harmonious or expressive way. But music has a meaning which is far broader than this. Music is life. Music means Self-expansion and oneness. It is an art by itself. Art, in any of its forms, is generated by a person, or a group of talented yet usually ordinary people, that express, willinglyRead MoreMusic And Its Influence On Art949 Words   |  4 Pages observing and critiquing the different exhibits and pieces of art on display—paintings, sculptures, photographs. Often times, a person will spend longer observing a particular piece because some aspect of it resonates with them; it strikes some unidentifiable chord. Art is meant to evoke emotion by creating or portraying something the audience can relate to. Jazz music appeals to the ears, just as paintings appeal to the eyes. Music is like painting with sound. It contains different colors and strokesRead M oreMusic As A Form Of Art1125 Words   |  5 PagesMusic is an art to reflect human’s emotion. It is the science or art of using tones and sounds in association and in temporal relationships to make construction having unity and continuity.It can be divided into classical music, pop music, folk music and instrumental music. In the types of art, music belongs to abstract art. Music can make people pleasant and bring enjoyment of auditory sense to people.Music refer to an art include melody, rhythm ,harmony vocal and instrumental sounds.There is noRead MoreThe Music Of Pop Art1301 Words   |  6 PagesThe art movement I have chosen to write about is pop art. The pop art movement was about appealing to the eye through popular culture and through news and advertising. Pop art emerged in the mid 1950’s in the United States. British artists Richard Hamilton and Eduardo Paolozzi were critics that made pop art popular in Britain in 1952. Paolozzi’s first creation in p op art was a collage of newspaper clippings. A film was made by Ken Russell, which gave life to the idea of pop art in Britain. MeanwhileRead MoreAnalysis Of Arts And Music In Music And Education1524 Words   |  7 Pagesdelete all art and music programs out of the curriculum. The alternative to cut these programs and most extra-curricular activities, was to start â€Å"a pay to playâ€Å" programs. Individual school districts offered music, art, and sports with the parents paying for the student to participate in the activities. The other option to allow music art and sports in the schools is to raise money through levies and taxes. Both options have shown to be ineffective. Research suggests that Arts and Music should beRead MoreThe Music And Arts Festival1322 Words   |  6 Pagesflow I have been to multiple concerts before but nothing compares to the Resonance Music and Arts Festival, a weekend long camp out of like-minded, motived, music loving individuals. In simpler terms, modern day hippies. These hippies focus more on medication, dancing, and yoga as a way to reach the ultimate state of joy. The people around me, the clothing they wore, the smell of weed that filled the air, and the music that blared through the speakers were all things I will never forget about that summerRead MoreThe Art Of Teaching Music800 Words   |  4 PagesCarlehr Swanson The Art of Teaching Music Prof. East Fall 2015 Midterm 1-4 Growing up I was painfully shy. If anything required public speaking, I would shy away from it. I lived my life being scared to ask for opportunities to share my talent, and hated being put on the spot. The more I developed as a performer, I realized I would have to talk, sometimes a lot. In High School I signed up for a Radio Broadcasting and Journalism class, simply because I liked music. In the class, shy people didn’t

Physics Key Points Free Essays

string(47) " vibrations decides the loudness of the sound\." A force can do one of four things to an object: 1. Make it speed up – accelerate. 2. We will write a custom essay sample on Physics Key Points or any similar topic only for you Order Now Make it slow down – decelerate. 3. Change its direction. 4. Change its shape. If something is doing one of these four things there must be net force acting upon it. Newton’s First Law ‘Every body continues in a state of rest or uniform motion unless acted upon by an external force. ‘ Something without net force acting on it will either stay still or move at a constant speed in a straight line until you apply a force to it. F = ma Newton’s Second Law: †¢ F is the force in Newton’s, N. m is the mass in kilograms, kg. †¢ a is the acceleration in m/s2. This shows that if you keep the mass constant and double the applied force the acceleration will double. Hooke’s Law, elastic and plastic behaviour F = kx An elastic material is one that will return to its original shape when the force applied to it is taken away. A plastic (or inelastic) material is one that stays deformed after you have taken the force away. If you apply too big a force a material will lose its elasticity. In solids If a force is applied over a smaller surface area you get a larger pressure. Pressure can be calculated using the following equation: Pressure = force/area Force will be in Newton’s, N. Area will be in either m2 or cm2. If the area is in m2 then the pressure will be measured in Pascal’s or N/m2. If the area is in cm2 then the pressure will be in N/cm2. In liquids 1. Pressure increases with depth. 2. Pressure acts equally in all directions. 3. Pressure is transmitted through liquids. Hydraulics All hydraulics systems work because the pressure is the same throughout the system. A really good example of this is a car brake system. You need to know all about this for your exams. In gases Although gases are compressible (squashy) they exert a pressure because of the gas particles bouncing off things. Boyle’s Law For a fixed mass of gas the pressure x the volume of the gas stays the same. In other words, as you squeeze a gas its pressure will go up and its volume will get less. Important point: The temperature and mass of gas must stay the same for this to be true! We can write this as: Pressure x volume = constant or P1V1 = P2V2 Moments Moments make things turn or rotate. They are caused by forces but are not forces themselves. Like forces, moments have a direction. We say they are either clockwise or anti-clockwise, to show which way they will make something turn. The bigger the force causing the turning effect the bigger the moment will be. The further the force is from the pivot the bigger the moment will be. The size of a moment can be calculated using: Moment = Force x Distance Force is measured in Newton’s, N. Distance is measured in either m or cm. If the distance is in m then the moment will be measured in Nm. If the distance is in cm then the moment will be measured in Ncm. Distance As we all know, the distance between two points is how far apart they are. In science, we normally use metres as our unit. We often represent how the distance between two points changes using a distance: time graph. Speed Speed is how fast something is going. It is how quickly something covers a certain distance and can be worked out using the equation: Speed = distance/time Acceleration This is how quickly something gets faster. So if you were running and getting 1m/s faster every second you would have had an acceleration of 1 m per second per second. We normally write this 1 m/s2. We work out by the equation: Acceleration = change in speed/time taken Frequency, wavelength, amplitude and time period are used to describe waves. Waves can be transverse or longitudinal. Transverse waves – the vibration is at right angles to the wave motion, e. g. light, water waves and the electromagnetic spectrum waves. Longitudinal waves – the vibration is parallel to the wave motion, e. g. sound and some earthquake waves. Wave Speed (m/s) = Frequency (Hz) x wavelength (m) Reflection is the bouncing of waves off a surface. There are three rules of reflection that you need to know. 1. The angle of incidence always equals the angle or reflection. 2. The distance from the object to mirror is the same as the distance from the mirror to the image. 3. The image is always the same size as the object but is laterally inverted. Refraction is the bending of a wave when it goes from one substance into another. Refraction happens because the speed and wavelength of the wave changes as the wave goes into the other substance. The frequency of the wave stays the same. Total internal reflection happens when the angle of incidence, of a wave going from a substance into air, is greater than the critical angle. The wave bounces off the boundary, obeying the rules of reflection. Dispersion of white light produces a spectrum. This is caused by refraction. Light of different frequencies is refracted by different amounts. Red is refracted the least and violet the most. This causes white light to be split up into seperate colours. Diffraction is the spreading out of a wave as it goes through a gap, or around an object. The smaller the gap or the larger the wavelength the greater the diffraction. Diffraction is most effective when the size of the gap is approximately the same as the wavelength of the wave. You will need to be able to draw diagrams showing how waves reflect, refract and diffract. Sound waves are caused by particles vibrating. The frequency of the vibration decides the pitch of the sound. The amplitude of the vibrations decides the loudness of the sound. You read "Physics Key Points" in category "Papers" Ultrasound waves are high frequency sound waves, which are beyond the human hearing range. Ultrasound is used for seeing babies in the womb, detecting cracks in metal and cleaning instruments. Waves can be represented on an oscilloscope screen, which can be used to measure the characteristics of the waves. You should be able to find the amplitude and time period of a wave from an oscilloscope screen. The electromagnetic spectrum is a series of waves that all travel at the same speed in a vacuum. They are all transverse. Each part of the spectrum has different uses and dangers. Each part of the spectrum has a different frequency and wavelength. Gamma waves are at the high frequency end of the spectrum. Radio waves are at the low frequency end. You will need to know the uses and dangers of each part of the spectrum. Different surfaces and materials absorb different frequencies of waves. White surfaces reflect most waves. Black surfaces absorb most waves. Information can be carried along copper cables as electrical signals, or long optical fibres as electromagnetic wave pulses. Optical fibres have advantages over copper cables. Optical fibres can carry more information; the signals can travel faster and lose less energy as they travel along the cable. There are two types of signals, analogue and digital. Analogue signals have a continuous range of values. Digital signals have only t wo values, on (1) and off (0). Digital signals have advantages over analogue signals. Digital signals are easier to transmit as they are less affected by noise; it is also possible to send more information, in a certain time, as a digital signal than as an anologue signal. Types of energy Energy can not be created or destroyed it can only change from one form into another. There are many types of energy including, †¢ sound †¢ heat †¢ light †¢ kinetic †¢ nuclear †¢ potential energy Kinetic energy is movement energy. Potential energy is stored energy. There are three main forms of potential energy including gravitational, chemical and elastic. Sankey diagrams can be used to represent energy changes. The size of the arrows represents the amount of that type of energy. Energy is measured in Joules, J or kilojoules, kJ. Conduction Heat energy always moves from hotter objects to colder objects. Heat energy is conducted through solids by particles vibrating and passing on the movement to neighbouring particles. Metals are best at conducting heat. As well as the vibrating particles, they move the heat energy by free electrons moving between their atoms. The poorest conductors are gases as their molecules are too far apart to affect each other much. Air is a very bad conductor. Most insulators work because of trapped air. Convection Convection is hot gases or liquids rising and cooler gases and liquids sinking to replace it. As substances heat up the density decreases, which is what makes them float. This movement of molecules is called a convection current. It can only happen in a gas or liquid where the molecules are free to move around. Radiation Radiated heat energy is infrared radiation. All hot objects radiate heat. Black, dull surfaces are the best emitters of heat radiation. Lighter, shinier surfaces are poor radiators of heat. Radiated heat can also be absorbed by cooler objects. Black is the best absorber. Surfaces coloured silver or white will reflect the radiated heat. Ways to save energy in the home Reducing heat losses from a home means less damage to the environment and lower heating bills. Installing insulation costs money. The payback time is how long it takes for the savings to cover the cost. Each strategy has to reduce conduction, convection, radiation or any combination of them. Common strategies are double-glazing, loft insulation, tank lagging, lined curtains, cavity wall insulation, blocking up disused fireplaces and putting foil behind radiators. Other conservation strategies include using of low-energy light bulbs, turning down heating thermostats, fitting draught excluders and switching off unattended appliances. Non-renewable fuels and power stations The fossil fuels are oil, gas and coal. They are non-renewable, which means that they can not be replaced. They will eventually run out. These fuels have many uses but the main ones are heating, transport and generating electricity. In power stations, the fuel is burnt and the heat turns water into steam. That steam pushes around a turbine that is connected to a generator. The generator produces electricity. This process is the same for all power stations. Nuclear power stations don’t burn the fuel. Uranium fuel generates heat that turns water into steam just like in other power stations. Nuclear accidents are rare, but can be serious. The waste from the reactors can be radioactive. It is easy to store it safely for now but it will stay radioactive for years. Environmental impacts of burning fuels Carbon dioxide is the most common of several gases that contribute to the greenhouse effect. The result is global warming. This would result in the weather being more extreme and the ice caps melting raising the sea levels. Sulphur dioxide is the most common cause of acid rain. It dissolves in rainwater to form an acid. The acid rain harms plants, animals and stonework. Alternative energy sources Most of the alternative energy sources are renewable. This means there is either an endless supply of them so that they will not run out, or they can be easily replaced. Hydroelectric power is only possible where the geology is right, such as Scotland. Water runs fast down an incline and turns a turbine. Some developing countries get all their energy from HEP schemes on large dams. The large lake made behind the dam drastically alters the surroundings. Waves and tides have a lot of energy. Few schemes exist because of technological problems and environmental objections. Solar power converts the suns energy into electricity using solar panels. These panels are expensive to make. Wind farms are groups of wind turbines that generate electricity from wind. Some people don’t like wind farms because they spoil the view or make a noise. Geothermal energy uses the natural heat in volcanic rock to generate electricity. Gas called methane is produced when matter rots. This gas can be used to generate heat to produce electricity. Burning rubbish is not a way to avoid pollution but it does preserve fossil fuels as well as avoid rubbish having to be put in landfill sites. Crops can be grown to be burnt in a power station. Another version of this is to process the crops into alcohol and use it instead of petrol in cars. Work is done whenever a force acts over a distance, e. g. a car motor produces a forward force to move the car a certain distance. Energy is measured in Joules, J. The work done or energy transferred can be calculated using: Work done or energy = force x distance When working out the work done the force must be in the same direction as the movement. If more than one force is acting in that direction then the resultant force must be used. Kinetic energy is the amount of movement energy an object has. Kinetic energy can be calculated using: Kinetic energy = ? x mass x velocity2 Gravitational potential energy is the extra amount of stored energy an object has because it is higher up. GPE can be calculated using: Change in gravitational potential energy = mass x gravity x change in height This is the same thing as GPE = weight x height Power is the rate at which work is done, or in other words, the amount of energy transferred per second. Power is measured in Watts, W or J/s. Power can be calculated using: Power = energy transferred / time taken Or Power = work done / time taken Energy is often lost to the surroundings as heat energy. This is wasted energy as it cannot be easily used again. Efficiency tells us how much energy is wasted when an energy transfer has happened. The more efficient something is the less energy that is wasted. Efficiency can be calculated using: Power out/power in*100 =efficiency in % Energy out/energy in*100=efficiency in % Static Electricity Static Charge Static charge is a charge that can’t move. There are two kinds positive (+) and negative (-). All atoms contain positive particles (protons) and negative particles (electrons) but because they contain the same number of protons and electrons they have no overall charge. Static electricity is caused by an atom having too many or too few electrons (e-). A Van de Graff Generator is a machine that generates huge amounts of static charge, by rubbing electrons off a roller and depositing them on the metal dome. Induction and Earthing The basic rule you need to know is that like charges repel and opposite charges attract. Induction – This is the effect caused when a charged object causes electrons in another object to move. This causes the uncharged object to become attracted to the charged object. Earthing – If enough charge builds up on an insulator, the charge can leap the gap, causing a spark. This can be prevented by discharging the object, gradually. This is called earthing. Useful Static Static electricity is used in many useful machines like photocopiers and smoke stacks (to remove pollution from the smoke). Nasty Static If clouds get charged up enough, you get lightning, the biggest spark of all. Static can also be dangerous when refuelling aircraft. The fuel rubs against the side of the hose and lots of charge builds up. If the plane isn’t earthed, the spark can blow the plane up. Basic Circuits Current, Voltage and Resistances Current – This is a measure of the flow of electrons around a circuit (measured in Amperes or Amps). Voltage – This is a measure of how much energy the electrons are carrying around the circuit (measured in Volts). Resistance – This is a measure of how hard it is for the purple to travel through a part of the circuit (measured in Ohms). Direction Problem! Current flows from the positive (+ve) terminal of the battery to the negative (-ve). This is called conventional current flow. The problem is, electrons are negatively charged, so they want to get away from the -ve and go to the +ve. So if electrons are going left to right, you say that the current is going right to left. Circuits An ammeter needs to measure the flow of charge, so it is in series. This means that all the charge has to flow through it and can be counted. It also means that an ammeter needs to have a very low resistance. A voltmeter measures voltage across a component, which you may have heard as potential difference. This means it is in parallel and it also needs a high resistance (otherwise all the current would flow through the meter instead f the component). Series Circuits Current in series: same all the way round (all the current has to flow through everything). Voltage in series: voltages across each component add up to the total voltage supplied by the battery, as they have to share the voltage between them [(A) = (B) + (C) in the diagram]. Higher resistances will need more of the volt age. Final point – resistors in series: To work out the total resistance of two resistors, just add them together. This is because the current has to go through both of them. Parallel Circuits Voltage in parallel: all voltages the same. Current in parallel: the current is shared out between the branches, but recombines near the battery. In the diagram (A) = (B) + (C) = (D). How much current each branch gets depends on the individual resistors – bigger resistance = lower current. Resistance in parallel: you don’t normally have to work out numbers, but the rule of thumb is that the total resistance of two resistors in parallel is less than the lowest individual resistor. Circuit Symbols Cells and Batteries: strictly speaking one cell represents 1. 5V, but of you write the voltage above it (e. g. 6V’), most people will understand the cell has 6 volts. Power Supplies: come in all shapes and sizes; just label them as you want. Switches: several types, I’ve shown the main two that you will come across Lamps/Bulbs: either symbol could be used – it doesn’t matter. Resistors: a few types – Fixed, Variable (you can change the resistance), Thermistor (as it gets hotter, its resi stance decreases) and Light Dependent Resistor or LDR (the more light that shines on it, the lower its resistance gets). Diode: A diode is like an electrical valve, it only lets current flow one way. If it is connected with the arrow pointing to the negative terminal, current can easily flow, if it is the other way round, it will block the current. A LED or Light Emitting Diode is just the same except it gives off light†¦ Ohmmeter: is connected directly to a resistor, of any kind, to find its resistance (no other circuit is used with it) Check in your syllabus to see if there are anymore you need to know! Know Your Formulae Ohm’s Law The law actually says that the resistance of a metal conductor is the same whatever the current – unless it’s getting hotter. However most people think of these equations when the law gets mentioned: V=IR and so on, Voltage (V) in Volts, Current (I) in Amps and Resistance (R) in Ohms. Charge (Q) in Coulombs, Time (t) in seconds and Power (P) in Watts. Always remember to show all your working out, including writing the formula properly (not just the triangle! ) and checking your units (e. g. check for mV or kW instead of V or W) Prefixes: These are little letters added to units to make them a different size, but always use the base unit if unsure. Base units are given in the topics, the ones to watch for are time (seconds) and mass (kilograms not grams). |Prefixes: |Name |Value: |Example: | |M |Mega |x 1,000,000 | 1MW = 1,000,000W | |k |kilo |x 1,000 |1kg = 1,000g | |c |centi |? 100 |1cm = 0. 01m | |m |milli |? 1,000 |1ms = 0. 001s | Mains Supply (AC and DC) We use two main sorts of electrical supplies, DC and AC. DC – This is Direct Current. The current flows in one direction only and has a consistent value. Provided by batteries or DC adaptors/transformers that plug into the mains supply. AC – This is Alternating Current. The current flows first one way then the other at a frequency of 50Hz. AC is what comes out of the mains sockets, usually at around 240V. The Ring Main This is the name given to the circuit in your home. You only need to know that it is a parallel circuit and that the lighting circuit is separate from the circuit for sockets. The National Grid This is the circuit that carries electricity all around the country, from the power stations to homes and businesses. Producing the Power Energy is produced by burning fuel which turns water to steam, this drives a turbine, which make electricity via a generator. This electricity is a very high voltage and is passed over the National grid to a step down station then passed straight to your home. Why the High Voltage? High voltage is used over the National grid, to keep current low. This stops energy being wasted. Energy and the Cost Kilowatt-hours (kWh) The kilowatt-hour is the common unit used by energy companies to measure electricity. This is a unit of energy not power or time. It is the amount of energy if a 1kW appliance was left on for 1 hour. The Cost 1kWh of electrical energy costs around 6p, though it may change depending on your supplier. So multiplying the number of Kilowatt-hours you use by the unit cost (approx 6p), give you the total cost of the electricity you use. Safety A common question is to give you a picture of domestic bliss and get you to identify the hazards, such as the person sticking their fingers in the toaster. Things to look for are: . bad wiring, 2. water near appliances, 3. too many double plugs/adaptors, 4. Frayed wires. Just use your common sense and you should get some easy marks! Wiring a Plug One big problem used to be wiring plugs. By law now, all new appliances are fitted with one already, which helps, but you do need to know what’s going on inside there Fuses Fuses help protect the circ uit against faults. The key thing is to get the wire just thick enough to carry the current you want, but thin enough to melt if there is a current surge. Fuse Ratings Common sizes are 3, 5 and 13Amp fuses, but there are many others. Always choose one slightly higher than the current rating of the appliance, so that it doesn’t blow under normal conditions. Circuit Breakers Fuses are not always effective at protecting you, so circuit breakers are also used. They automatically compare the current entering and leaving the circuit and even if there is the tiniest difference they ‘trip’ off. Earth The Earth (yes, I do mean our planet) is very good at soaking up loose charge. The earth in your house is probably connected to the plumbing (goes to ground) or a large metal spike in the ground somewhere. Double Insulation If something is completely cased in an insulator, like plastic, it is said to be double insulated, and does not need earthing. You can’t get a shock from the case! Atoms are made up of: †¢ protons; †¢ electrons; †¢ Neutrons. Protons and neutrons are in the nucleus and the electrons orbit the nucleus. Protons have a positive charge, electrons have a negative charge and neutrons have no charge. The shape of the atom was discovered using the alpha-scattering experiment. This showed the original plum-pudding model to be wrong! Atomic notation is used to describe atoms. The top number is the mass or nucleon number. It tells us how many protons and neutrons there are in the nucleus. The bottom number is the proton or atomic number, which tells us how many protons are in the nucleus. During reactions the total number of protons and neutrons must stay the same. Isotopes of an element have the same number of protons but a different number of neutrons in the nucleus. It is this different number of neutrons that makes some isotopes unstable and radioactive. These isotopes are called radioisotopes. Ionisation is where an electron is removed from a neutral atom, leaving the atom with a positive charge. Radiation causes ionisation. This can be used to detect radiation, as the amount of ionisation can be measured with a Geiger-Muller tube. Ionisation can damage or kill living cells, this can cause cancer to develop. Alpha particles, beta particles and gamma waves are the three main types of radiation emitted during radioactive decay. All three types of radiation are emitted from the nucleus of the atom. When radiation is emitted the unstable atom loses energy to become more stable. If alpha or beta particles are emitted, new elements are formed because of the change in the number of protons in the nucleus. Alpha, beta and gamma radiation all behave slightly differently due to the way they are made up. Alpha ionises the most over a small distance but is not very penetrating. Gamma is the most penetrating but ionises less over the same distance. Decay equations can be used to work out what new daughter element will be produced when radioactive decay takes place. Safety precautions must be taken when handling radioactive substances. These include, using long handled tongs, pointing sources away from people, wearing lead lined clothing, not inhaling or eating sources. The half-life of a substance is the time it takes for half of the original parent atoms to decay. It is also the time it takes for the count rate of a substance to fall to half the original value. Radiation is used in medicine to cure cancer, in industry to detect the thickness of materials and in dating. Background radiation is radiation that is produced around us all of the time. Sources include certain rocks, cosmic radiation, radon gas in the air, nuclear waste and experiments, medical uses and some foods. The background radiation needs to be subtracted from experiment results on radioactivity. How to cite Physics Key Points, Papers

IT Risk Management for Financial Company -myassignmenthelp.com

Question: Discuss about theIT Risk Management for Financial Company. Answer: Incidence responses are the measures in which a company or organization has set in place to ensure that it is prepared to handle any kind of incident which may happen. Incidence response is important because it has various benefits which help a company respond to an incident appropriately. One benefit is to enable an organization to form a team that will be in charge of responding to an incident. The team will be highly trained to guide the people who are affected by the incident to safety. It will also reduce the amount of damage that may be caused by an incident. When an incident occurs the potential of it becoming a severe problem is very likely (National Registry of EMTs 2017, n.p.). However the implementation of an incidence response team might reduce the impact in which the incident may have so that it does not become worse. When an incident occurs there is usually a lot of confusion. For there to be minimal casualties and a chance to respond effectively to the incident there n eeds to be a central communication point which can aid in responding to the incident by guiding people on where they should evacuate to safety as other professionals come in to try and avert any more damage that may be caused by the incident. The cost involved in coming up with an incident is usually very high. This is because there needs to be acquisition of various resources which are costly and may not be used for a long time. In an organization such as financial company its staff are based in its headquarters where they are able to conduct their operations. There are possibilities of disasters happening such as an electrical problem which may cause a fire. The company is obliged to have security measures such as fire extinguishers and designated fire point. When a fire breaks out there is usually a lot of panic. The individuals who are caught up in the building during the fire will try and run for safety. When it becomes a scenario of every man for himself in a disaster the chances of the number of casualties escalating is very high. There are people who may die as they try to escape the company building due to a stampede when everyone is running for their lives. People may also fall and get injuries as they exit the building through the stairs because it is ill advised to use elevators during a fire. There should always be a disaster preparedness plan and policy within a company. The plan will enable the company to evaluate to what extent they may be able to respond to a disaster so that they ensure that in case a disaster happens they will be ready to face it and avoid a huge number of casualties (Hazardous Materials Management 2017, n.p.). The plan can be described using an incident response life cycle. It contains four main stages which are preparation, detection and analysis, containment, eradication and discovery and post incident activity. Objectives Audiences Key Messages Timing Communication of incident. Respond to the incident. Review incident response to evaluate All staff in the building and necessary stakeholders such as fire department and hospital. Qualified onsite personnel help with tackling the incident Top management and strategic team Advise them on danger and proper way to exit the building. Following the set plan to ensure there is minimal casualties and damages. Evaluate the incident and the response measures. Find out the benefits of having the plan and what can be worked on to achieve the best response to an incident. Urgent and updated as events unfold. Urgent and updated as evacuation continues. After incident has been resolved. A month or two after the incident. Reference List Hazardous Materials Management (HAZMAT). 2017. Retrieved from www.gsa.gov. National Registry of EMTs. 2017. National Registry of EMTs. Retrieved from www.nremt.org.