Raymond Ye Mr. Pettibone IB Physics 2 November 2013 Internal Assessment DESIGN Aspect 1: How does the time a rubber band spends stretching a force of 12.5 N affect the force required to break/snap the rubber band? IV- The time spent stretching the rubber band 12.5 N DV- The force required to break/snap the band Units for Independent Variable- Minutes Units for Dependent Variable- Newtons Aspect 2: Variables that will be kept the same include: -The force of the stretch -Conditions
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intertwined around itself‚ but regardless of how big‚ fast‚ or gravity defying they are‚ they all use the same natural force – gravity. The more twisting‚ turning‚ flipping‚ and the faster a roller coaster goes‚ the more the coaster depends on the law of physics‚ not mechanics‚ to keep it moving. There is no onboard motor on roller coasters but they can still reach speeds that exceed the limits of a car on the parkway‚ while completing a curve‚ twist‚ rise‚ or plunge. History of Roller Coasters Modern
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Physics Moment of a force: Moment of a force = force x perpendicular distance of the line if action if the force from fulcrum Law of moments: When a body is in equilibrium the sum of the clockwise moments about any point equals the sum of the anticlockwise moments about the same point. Centre of mass: Centre of mass is the point where whole mass of the body assumes to be concentrated. II. If the vertical line through the centre of mass is outside the base it will be a topples but if it’s passed
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TUBERCULOSIS Tuberculosis‚ commonly known as TB‚ is a contagious and an often severe airborne disease caused by a bacterial infection. TB typically affects the lungs‚ but it also may affect any other organ of the body. It is usually treated with a regimen of drugs taken for 6 months to 2 years‚ depending on the type of infection Tuberculosis was popularly known as consumption for a long time. Scientists know it as an infection caused by M. tuberculosis. In 1882‚ the microbiologist Robert Koch discovered
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Week #7 Chapter 10 Static and Current Electricity Exercises (p.221) 6. Strictly speaking‚ will a penny be slightly more massive if it has a negative charge or a positive charge? Explain. A negative charge because when it is negatively charged electrons are added to the penny. 17. What is the voltage at the location of a 0.0001 C charge that has an electric potential energy of 0.5 J (both voltage and potential relative to the same reference point)? Potential = energy Charge = 0.5 J / 0.0001
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1. Properties of light Reflection The speed of light is measured through the equation: v = λ f. However‚ it turns out that when light is reflected off a surface its speed stays the same. This was first proven by Sir Isaac Newton. Under the assumption of perfectly elastic collision‚ the laws of reflection follow from the laws of motion. To demonstrate‚ consider a particle traveling towards a flat frictionless surface whose horizontal and vertical velocity components are: VX and VY. When the particle
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Measuring The Percent of Body Fat by Skin Fold Measures‚ Body Mass Index (BMI) and Waist Girth to Assess Associated Risk of Cardiovascular Disease Risk On a Young Adult Female Student. Objectives The objective of this experiment was to collect data for the skinfold calipers‚ BMI and body composition formulas. For the skinfold calipers‚ we had to measure different body sites. After the data was gathered we used this to calculate different classification we were and how the scores
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around. Moving air has a force that will lift kites and balloons up and down. Air is a mixture of different gases; oxygen‚ carbon dioxide and nitrogen. All things that fly need air. Air has power to push and pull on the birds‚ balloons‚ kites and planes. In 1640‚ Evangelista Torricelli discovered that air has weight. When experimenting with measuring mercury‚ he discovered that air put pressure on the mercury. Francesco Lana used this discovery to begin to plan for an airship in the late 1600s
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Experiment in Physics Lab Report Renelle L. Gapay Department of Physics Isabela State University-Ilagan Campus‚ Calamagui 2nd‚ City of Ilgan‚ Isabela Ellenergapay_23@yahoo.com Abstract In this experiment you can prove that electric charges can produce by using only a balloon and pieces of papers you can understand further static electricity and charges. And how it is produced. Introduction Have you ever wondered why rubbing a balloon make pieces of paper attract with it? The effect
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PHYS 1401 College Physics I Test 2 Page 1 of 6 Houston Community College System PHYS 1401 Test # 2 PHYS 1401 College Physics I Test 2 Page 2 of 6 Name ______________________________________________________ Date ____________ PHYSICS 1401. Test 1 Chapters 3‚ 4 and 5 _____________________________________________________________________________ INSTRUCTIONS: Answer all questions from Section I (2 points per question). And Solve at least four problems from Section II (20 points
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