PHYSICS science that deals with matter‚ energy‚ motion and force. BRANCHES OF PHYSICS Acoustics studies the production and properties of sound. Atomic physics examines the structure‚ properties‚ and behavior of the atom. Biophysics applies the tools and techniques of physics to the study of living things and the life processes. Cryogenics is the study of extremely low temperatures. Electrodynamics analyses the relationship between electrical and magnetic forces. Fluid physics deals with
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caused by TB. Because antibiotics were unknown‚ the only means of controlling the spread of infection was to isolate patients in private sanitoria or hospitals limited to patients with TB—a practice that continues to this day in many countries. The net effect of this pattern of treatment was to separate the study of tuberculosis from mainstream medicine. Entire organizations were set up to study not only the disease as it affected individual patients‚ but its impact on the society as a whole. At the turn
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natural resources also brings about the damages in nature‚ such as global warming and greenhouse effect. Then‚ they lead to animal extinction‚ plant loss‚ and the disappearance of the habitat of many species. As a result‚ the rapid exhaustion of the Earth’s natural resources becomes the most important issue nowadays that will cause many consequences in nature. In a word‚ some of those bad effects that human activities cause to nature are change in climate‚ species extinction‚ and marine ecosystem
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significant technology in our society. There are several advantages of television like we all know that we can have a clear idea that what is happening in the world‚ we can have live information about the several events like sports and any other good or bad events happening on the globe. One can have a weather forecast and accordingly plan several things before time. It is also a good source of entertainment which is very cheap and within the access of every one. Television has shrunk the distance
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Objectives: • To be able to explain how the photoelectric effect experiment works and why a photon model of light is necessary to explain the results. • To study the effect of intensity of light on photoelectric experiment. • To estimate the Planck’s constant‚ h through the simulation. • To be determine how to calculate the wavelength of light‚ the work function of the metal‚ or the stopping potential‚ if given the other two. Beginning with the plate made of sodium. Keep all the parameters
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I. Temperature Measurement 1. A thermometric property is a physical property that changes in a known way with temperature‚ and can therefore be used to measure temperature. The substance used as a thermometer must have a property that varies proportionally / linearly with temperature. [ In other words: When objects are heated or cooled‚ their temperatures change‚ along with some of their properties‚ these properties are known as Thermometric Properties.] Two commonly used thermometric properties
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Name __________________________________ Electric Fields Go to HYPERLINK "http://phet.colorado.edu/simulations/sims.php?sim=Electric_Field_Hockey" http://phet.colorado.edu/simulations/sims.php?sim=Electric_Field_Hockey and click on Run Now. 1. You rub balloons in your hair and then hang them like in the picture below. Explain why you think they move apart and what might affect how far apart they get. When the balloons are rubbing together they are taking charges(electrons ) from
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To determine the heating and cooling curve of water Design: What we are going to do is investigate the phase changes and what the heating curve of water is. We are going to do this is by heating up 100ml of water on a Bunsen burner then adding ice cubes. Use a thermometer to measure the temperature every 30 seconds until it reaches a plateau. Hypothesis: As more time passes‚ the temperature of the water increases. Independent variable: Time Dependent variable: Changing water temperature
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6. Applications * Is it possible to add heat to a body without changing its temperature? Yes. It is possible to add energy to a body (in the form of heat) and not raise its temperature by causing a phase change. When you heat ice it takes energy to convert it from ice to water‚ but does not change the temperature of the body until it is all converted. The principle behind this is what we call latent heat. It refers to the energy (or heat) required to change the state of a substance without changing
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Revision Checklist for O-Level Physics 5054 Guide for Students www.XtremePapers.net REVISION CHECKLIST for O Level Physics 5054 A guide for students How to use this guide The guide describes what you need to know about your O level Physics examination. It will help you to plan your revision programme for the written examinations and will explain what the examiners are looking for in the answers you write. It can also be used to help you to revise by using the tick boxes in Section 3‚ ‘What
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