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Question 11.Which of the following scenarios requires more power?
Question 22.How much power is required to do 100 J of work in 10 s?
Question 33.Which best describes 'power'?
Question 44.To do twice as much work in the same amount of time, how much power is required?
Question 55.To which of the following variables is kinetic energy proportional?
Question 66.A bike resting at the top of a hill would be an example of what type of energy?
Question 77.Which of the following is an example of potential energy and not kinetic energy?
Question 88.Different types of energy can be categorized as either kinetic or potential.
Question 99.A Btu is the amount of heat needed to ___the temperature of ___ of water by ___.
Question 1010.Which of the following conversion factors is correct?
Question 1111.If 1 cal = 4.186 J, how many joules is 10,000 calories?
Question 1212.If 1 Btu = 252 cal, how many Calories are in 10 Btu?
Question 1313.Which of the following is a property of energy?
Question 1414.Which of the following is the best definition for energy?
Question 1515.Which of the following is an example of mechanical energy?
Question 1616.Which of the following types of energy does the sun use to heat up our atmosphere?
Question 1717.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 1818.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 1919.Elastic potential energy is the energy an object has in it due to being what?
Question 2020.Why is Hooke's law important for finding elastic potential energy?
Question 2121.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 2222.Which of the following objects has the most gravitational potential energy?
Question 2323.How do we know that gravitational potential energy exists?
Question 2424.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 2525.What is the standard unit of power?
Question 2626.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 2727.If you cook something in your 2,000 W microwave for 2 minutes, how many kWh did it use?
Question 2828.Which of the following is a common unit that is used to measure energy?
Question 2929.Which of the following is the formula for elastic potential energy?
Question 3030.If a car is rolling naturally downhill without the engine running, what energy transfer is happening?
System Energy & Power Chapter Exam Instructions
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