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- 1. Multiple Choice
A 6kg cat misjudges a jump and falls 5 meters. How much gravitational potential energy does the cat have? (The cat is fine by the way.)
294 J
180000 J
1225 J
3920000 J
- 2. Multiple Choice
A 50kg (100lb) person is running at 7m/s (about 16 mph). How much kinetic energy do they have?
1225 J
180000 J
294 J
3920000 J
- 3. Multiple Choice
What is the unit for mass?
kilogram (kg)
meter (m)
Newton (N)
Joule (J)
- 4. Multiple Choice
What is the unit for distance?
kilogram (kg)
meter (m)
Newton (N)
Joule (J)
- 5. Multiple Choice
What is the unit for force?
kilogram (kg)
meter (m)
Newton (N)
Joule (J)
- 6. Multiple Choice
What is the unit for energy?
kilogram (kg)
meter (m)
Newton (N)
Joule (J)
- 7. Multiple Choice
What is the formula for kinetic energy?
distance / time
mass x acceleration
velocity / time
½(mass) x (velocity)2
(mass) x (acceleration of gravity) x (height)
- 8. Multiple Choice
What is the formula for gravitational potential energy?
distance / time
mass x acceleration
velocity / time
½(mass) x (velocity)2
(mass) x (acceleration of gravity) x (height)
- 9. Multiple Choice
At which point is potential energy greatest?
W
X
Y
Z
- 10. Multiple Choice
What kind of energy is stored energy?
Potential
Kinetic
None of the above
All of the above
- 11. Multiple Choice
The faster an object moves, the ________ kinetic energy it has.
more
less
none of the above
same
- 12. Multiple ChoiceWhat kind of energy is in a moving skateboard?PotentialKineticBoth potential and kinetic energynone of the above
- 13. Multiple ChoiceWhat kind of energy is in a rock at the edge of a cliff?PotentialKineticBoth potential and kinetic energynone of the above
- 14. Multiple ChoiceWhich is the best example that something has kinetic energy?a. a car parked on a steep hillb. a tennis ball rolling across the courtc. a picture hanging on the walld. a piece of coal before it's burned
- 15. Multiple ChoiceWhat kind of energy is in a person climbing a ladder?PotentialKineticBoth
- 16. Multiple Choice
The statement that "the energy within a system remains constant and cannot be created or destroyed, only transformed" best sums up _________.
Something Mr. Lance likes to say.
Life
Law of Conservation of Energy
The scientific method
Newton's Third Law
- 17. Multiple Choice
Which of the following is the correct equation for calculating an object's gravitational potential energy?
PE = mgh
PE = mg / h
PE = mg + h
PE = gh
- 18. Multiple Choice
In the equation PE = mgh, what does the “g” mean?
Acceleration due to gravity
Force of gravity
Weight of the object
- 19. Multiple ChoiceAt which point is kinetic energy greatest?WXYZ
- 20. Multiple ChoiceExplain what happens to the potential energy of a rock as it falls off the side of a cliff.The kinetic energy decreases as the potential energy increases.The kinetic energy decreases as the potential energy decreases.The potential energy decreases as the kinetic energy increases.The potential energy decreases as the kinetic energy decreases.
- 21. Multiple Choice
A cheetah can run briefly with a speed of 31.0 m/s. Suppose a cheetah with a mass of 47.0 kg runs at this speed. What is the cheetah’s kinetic energy?
1457 Joules
22,584 Joules
15 Joules
45,167Joules
- 22. Multiple ChoiceGravitational potential energy depends on the ________ and ________ of the object.Height and massFriction and movementMass and MovementHeight and Friction
- 23. Multiple ChoiceA 0.40 kilogram bird is flying at a constant speed of 8.0 m/s. What is the bird's kinetic energy ?3.2 J4.2 J2.0 J12.8 J
- 24. Multiple ChoiceA 60.0 kg person walks from the ground to the roof of a 74.8 m tall building. How much gravitational potential energy does she have at the top of the building?43982.4 J63982.3 J43962.4 J83942.4 J
- 25. Multiple ChoiceA 50.0 kg wolf is running at 10.0 m/s. What is the wolf's kinetic energy?1500 J2.250 J2500 J3500 J
- 26. Multiple Choice
The formula for calculating the gravitational potential energy in an object is shown above. Which object will have the largest value for its GPE
- 27. Multiple Choice
How high must a 20kg box be lifted to give it 784J of potential energy?
3.98 km
392 m
4.0 m
3
- 28. Multiple ChoiceWhich of the following has kinetic energy?a rock poised for a falla stretched rubber banda rolling bowling balla car waiting at a red light
- Answer choicesTagsAnswer choicesTags