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Science
9th -
12thgrade
Calculating Potential and Kinetic Energy
10 questions
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- 1. Fill in the Blank
An 2 kg apple is hanging in a tree, 3 m off the ground. What is the gravitational potential energy (gravity = 9.8 m/s2) of the apple?
- 2. Multiple Choice
Gravitational potential energy depends on the strength of gravity, ________ and ________ of the object.
height and mass
friction and movement
mass and movement
height and friction
- 3. Fill in the Blank
There is a clock at the top of a tower that is 45m high. The clock weighs 20 kg. Calculate its potential energy. Remember g=9.8 m/s
- 4. Fill in the Blank
What is the gravitational potential energy of an 85 kg mountain climber at the summit of a 6267 m volcano?
- 5. Multiple Choice
Between a bowling ball and a soccer ball, which one has more kinetic energy and why?
a bowling ball because it has more mass
a bowling ball because it is smaller
a soccer ball because it has more mass
a soccer ball because it is smaller
- 6. Multiple Choice
A cheetah can run briefly with a speed of 31 m/s. Suppose a cheetah with a mass of 47 kg runs at this speed. What is the cheetah’s kinetic energy?
1457 J
728.5 J
45,167 J
22,583.5 J
- 7. Multiple Choice
A polar bear has an average mass of 500 kg. If its maximum kinetic energy is 60500 J, what is its top speed?
242 m/s
121 m/s
15.56 m/s
15,125,000 m/s
- 8. Multiple ChoiceAt which point is potential energy greatest?WXYZ
- 9. Multiple ChoiceEnergy can be _____________ or changed from one type to another.destroyedtransferredcreatedignored
- 10. Multiple Choice
KE = 1/2 m s2
A 10 gram ball is rolling at 3 m/s. The ball has __________ energy. Calculate it.
30 joules
60 joules
45 joules
15 joules
- Answer choicesTagsAnswer choicesTags