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Gravitational Potential Energy
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| Tutorial ID | Title | Tutorial | Video Tutorial | Revision Notes | Revision Questions | |
|---|---|---|---|---|---|---|
| 5.3 | Gravitational Potential Energy |
Gravitational Potential Energy Revision Questions
1. What happens with the gravitational potential energy of a 5 kg object if it moves according the trajectory shown in the figure? Take g ≈ 10 m/s2.
- Increases by 700 J
- Increases by 600 J
- Decreases by 100 J
- Increases by 850 J
Correct Answer: B
2. A 3 kg object falls from 24 m above the ground as shown in the figure. What is the velocity of this object when it touches the ground? Ignore the air resistance. Take g ≈ 10 m/s2.
- 21.9 m/s
- 15.5 m/s
- 26.8 m/s
- 19.0 m/s
Correct Answer: A
3. A 1 kg object moves according the trajectory shown in the figure.
What is the velocity of the object when it is at ground level? Take g ≈ 10 m/s2 and ignore all kinds of resistive forces.
- 11.1 m/s
- 7.9 m/s
- 2 m/s
- 0
Correct Answer: A
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- Continuing learning work, energy and power - read our next physics tutorial: Elastic Potential Energy and Combination of Springs
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