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Question 11.To find the formula for elastic potential energy of a spring we need to know the spring constant and the displacement of the spring. What exactly do we mean by displacement of the spring?
Question 22.Both the equations for Hooke's law, and elastic potential energy have a constant called the spring constant in them. What is the spring constant?
Question 33.Elastic potential energy is the energy an object has in it due to being what?
Question 44.Which of the following is the formula for elastic potential energy?
Question 55.If 1 Btu = 252 cal, how many Calories are in 10 Btu?
Question 66.If 1 cal = 4.186 J, how many joules is 10,000 calories?
Question 77.If you cook something in your 2,000 W microwave for 2 minutes, how many kWh did it use?
Question 88.A Btu is the amount of heat needed to ___the temperature of ___ of water by ___.
Question 99.What is the standard unit of power?
Question 1010.To do twice as much work in the same amount of time, how much power is required?
Question 1111.Which of the following scenarios requires more power?
Question 1212.How much power is required to do 100 J of work in 10 s?
Question 1313.Consider a ball at the end of a string. If the ball is swinging back and forth, at what point in the swing would the ball have the most potential energy?
Question 1414.To which of the following variables is kinetic energy proportional?
Question 1515.Different types of energy can be categorized as either kinetic or potential.
Question 1616.Which of the following is an example of potential energy and not kinetic energy?
Question 1717.How do we know that gravitational potential energy exists?
Question 1818.You lift a 3kg dumbbell from the ground until it is above your head, at a height of 1.5 meters. How much energy did you use in the process? (Assume that you're not a space alien, and your gym is on Earth.)
Question 1919.Which of the following objects has the most gravitational potential energy?
Question 2020.If a car is rolling naturally downhill without the engine running, what energy transfer is happening?
Question 2121.Which of the following is the best definition for energy?
Question 2222.Which of the following is a property of energy?
Question 2323.Which of the following is an example of mechanical energy?
Question 2424.Which of the following is a common unit that is used to measure energy?
Question 2525.Why is Hooke's law important for finding elastic potential energy?
Question 2626.Which of the following conversion factors is correct?
Question 2727.Which best describes 'power'?
Question 2828.A bike resting at the top of a hill would be an example of what type of energy?
Question 2929.A 10 kg bowling ball is lifted from the ground to a height of 1 meter. Assuming the bowling alley is on Earth, how much gravitational potential energy does it now have?
Question 3030.Which of the following types of energy does the sun use to heat up our atmosphere?
System Energy & Power Chapter Exam Instructions
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