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Physics
9th -
11thgrade
Potential and Kinetic Energy math practice
8 questions
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- 1. Multiple ChoiceA 4 kg rock is sitting 5 m above the ground. How much potential energy does it have?20J50J196J980J
- 2. Multiple ChoiceWhat is the kinetic energy of a 130 kg bicycle/bicyclist traveling at 3 m/s?540 J585 J390 J3820 J
- 3. Multiple ChoiceHow much kinetic energy does a 100 kg person have when he runs at 10 m/s?50 J500 J5000 J10000 J
- 4. Multiple ChoiceA cheetah can run briefly with a speed of 31m/s. Suppose a cheetah with a mass of 47 kg runs at this speed. What is the cheetah’s kinetic energy?22583.5 J728.5 J1457 J0.75 J
- 5. Multiple ChoiceOne of the tallest radio towers is in Fargo, North Dakota. The tower is 639m tall, or about 44 percent taller than the Sears Tower in Chicago. If a bird lands on top of the radio tower, so that the gravitational potential energy associated with the bird is 2033J, what is its mass?3.08 kg31.17 kg0.32 kg13.13 kg
- 6. Multiple ChoiceIn 1993, Cuban athlete Javier Sotomayor set the world record for the high jump. The gravitational potential energy associated with Sotomayor’s jump was 1970J. Sotomayor’s mass was 82kg. How high did he jump?237.3 m15.83 km24 m2.45 m
- 7. Multiple ChoiceThe kinetic energy of a golf ball is measured to be 143.3J. If the golf ball has a mass of about 47g, what is its speed?2.46 m/s3367.55 m/s1.52 m/s6.09 m/s
- 8. Multiple ChoiceThe kinetic energy of a golf ball is measured to be 143.3J. If the golf ball has a mass of about 47g, what is its speed?2.46 m/s3367.55 m/s1.52 m/s6.09 m/s
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