1. The first electronic digital computer (called ENIAC - the Electronic Numerical Integrator and Calculator) was developed in 1946 and contained over 18‚000 vacuum tubes. | 2. The leg muscles of a locust are about 1000 times more powerful than an equal weight of human muscle. | 3. The cosmos contains approximately 50‚000‚000‚000 galaxies. | 4. There are between 100‚000‚000‚000 and 1‚000‚000‚000‚000 stars in a normal galaxy. | 5. Sound travels about 4 times faster in water than
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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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General Chemistry 1 Lab 1: Laboratory Techniques and Measurements Purpose: The purpose of this lab is to ensure that students are able to understand how to conduct measurements of length‚ mass‚ temperature‚ density and volume using different measuring devices. Students will also learn how to dilute substances by using simple algebra. Procedure: 1. Prepare a data table similar to Data Table 1 shown below. 2. Choose any three objects that are shorter than the metric ruler to measure‚ such
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DELTA UNIVERSITY FOR SCIENCE AND TECHNOLOGY FACULTY OF PHARMACY Practical Physics I Fall 2012 [PRACTICAL PHYSICS I] Contents Fall 2012 (1) Fine Measurement Apparatuses --------------------------------------------------------------------------- 2 (2) Determination of the Mechanical Equivalent of Heat (Joule’s Law) by Electrical Method 12 (3) Determination of the Melting Point of a Solid Material ------------------------------------------ 15 (4) Determination of the Specific Gravity
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buying a Physics book to use as their reference material while studying physics‚ and because we think that I.T can be about Physics in some ways‚ our group decided to create and design a website that contains stuffs about College Physics which is composed of the following: * History of Physics * Branches of Physics (Branches of Classical Physics and Modern Physics) * Significance of Physics. * Tribute to the greatest Physicians and their contributions to advancement of Physics *
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HRES 2170 Current Events Presentation Assignment & Marking Rubric Instructor – Peter Claghorn Team Member 1: __________________________ Presentation Date: _____________________ Team Member 2: __________________________ Team Member 3: __________________________ PLEASE NOTE: Presentations begin in class on September 25 – we will follow the roster posted on Bb and there will be no deferrals granted. If you need to change presentation
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http://rowancomp2.wordpress.com/2011/04/21/final-paper-energy-drinks/ Energy Drink Companies – Are they telling us the whole truth? In today’s busy and hectic life‚ the average person does not get the necessary six to eight hours of sleep. They do not eat healthy foods to give their body the energy they need. As a consequence‚ they most of the time feel tired and lazy. A smart solution would be to get enough sleep every night‚ eat the right foods‚ and keep a balanced diet. However‚ because today
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