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- 1. Multiple Choice
Wile E. Coyote eats a healthy breakfast before running after the Roadrunner. What is the energy transformation?
Chemical potential to kinetic
Kinetic to gravitational potential
Elastic to kinetic
Chemical potential to thermal
- 2. Multiple Choice
A ball rolls to the top of a frictionless hill. What is the energy transformation?
gravitational potential to kinetic
kinetic to thermal
kinetic to gravitational potential
chemical potential to kinetic
- 3. Multiple Choice
A child is at the top of a smooth slide and then slides down. At the bottom, the child comes to a stop when they reach the grass. What is the energy transformation?
elastic potential to kinetic to gravitational potential
gravitational potential to kinetic to elastic potential
kinetic to gravitational potential to kinetic
gravitational potential to kinetic to thermal
- 4. Multiple Choice
A rock falls off a table and lands on a spring, squishing it. What is the energy transformation?
gravitational potential to kinetic to gravitation potential
kinetic to elastic potential to gravitational potential
gravitational potential to kinetic to elastic potential
chemical to thermal
- 5. Multiple Choice
A 3.0 kg ball is on a table 1.5 m above the ground. What is its gravitational potential energy?
4.5 J
44.1 J
3.4 J
29.4 J
- 6. Multiple Choice
What is the kinetic energy of a 12 kg dog running at 3 m/s?
36 J
353 J
54 J
118 J
- 7. Multiple Choice
How much work is needed to push a resting 20 kg crate to a velocity of 5 m/s?
15 J
250 J
300 J
100 J
- 8. Multiple Choice
50 J of work is done lifting a 2.0 kg book in the air. How high was it lifted?
2.6 m
3.6 m
1.0 m
25 m
- 9. Multiple Choice
How much energy is used by a 100 W light bulb over 1 hour? (be sure to convert to seconds first)
100 J
36,000 J
360,000 J
240,000 J
- 10. Multiple Choice
A bike goes from 0 m/s to 12 m/s in a time of 4 seconds. What was its acceleration?
12 m/s/s
4 m/s/s
3 m/s/s
0.33 m/s/s
- 11. Multiple Choice
A car goes from 0 m/s to 8 m/s in a distance of 100 m. What is the car's acceleration?
0.32 m/s/s
0.64 m/s/s
12.5 m/s/s
0.08 m/s/s
- 12. Multiple Choice
Bobby lifts a book to the second floor in 20 seconds. Carol lifts the same book to the second floor in 10 seconds. Who did more work?
Bobby
Carol
They did the same amount of work
Not enough information
- 13. Multiple Choice
Bobby lifts a book to the second floor in 20 seconds. Carol lifts the same book to the second floor in 10 seconds. Who used more power?
Bobby
Carol
They did the same amount of work
Not enough information
- 14. Multiple Choice
A 0.300 kg orange falls off a 1.2 m high table. How much kinetic energy does the orange have when it reaches the ground?
3.5 J
0.22 J
0.40 J
4.6 J
- 15. Multiple Choice
A pendulum has 10 J of gravitational potential energy at its highest point. How much kinetic energy does it have at its lowest point?
0 J
2 J
5 J
10 J
- 16. Multiple Choice
At one point, a falling apple has 2 J of gravitational potential energy and 7 J of kinetic energy. How much kinetic energy does it have when it hits the ground?
2 J
7 J
9 J
5 J
- 17. Multiple Choice
A 4 kg ball is at rest on a 2.5 m high shelf. The ball falls off the shelf. How fast is the ball moving when it hits the ground?
49 m/s
7 m/s
12 m/s
9.8 m/s
- 18. Multiple Choice
A solar panel is connected to a lamp. Does the panel do positive or negative work on the lamp?
positive
negative
not enough information
- 19. Multiple Choice
A horse pulls a cart from rest to 3 m/s. Does the horse do positive or negative work on the cart?
positive
negative
not enough information
- 20. Multiple Choice
A box slides from 12 m/s to 6 m/s across a carpet. Does the carpet do positive or negative work on the box?
positive
negative
not enough information
- 21. Multiple Choice
A 25 kg cart in moving at 15 m/s when it hits a rough road and then slides to a stop in 30 m. What is the acceleration of the cart?
3.75 m/s/s
-3.75 m/s/s
5.2 m/s/s
-5.2 m/s/s
- 22. Multiple Choice
What is the unit for energy?
joule
newton
watt
m/s/s
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