1. In this experiment, what do we observe to judge the magnitude of the ball's gravitational potential energy?
- A. The color of the ball
- B. The speed of the ball falling
- C. The depth the sponge is compressed
- D. The height the ball rebounds
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Factors Affecting GPE - Practice
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In this experiment, what do we observe to judge the magnitude of the ball's gravitational potential energy?
Factors Affecting GPE - Practice - Quiz Questions
Test your understanding of gravitational potential energy, the formula $E_p = mgh$, how mass and height affect stored energy, and the experimental method.
2. If we want to investigate the relationship between gravitational potential energy and height, we should control:
- A. Keep height constant, change mass
- B. Keep mass constant, change height
- C. Change both mass and height
- D. None of the above
3. Two objects A and B, object A's mass is twice that of B, and B's height is 4 times that of A. Then:
- A. A has greater gravitational potential energy
- B. B has greater gravitational potential energy
- C. Both have the same gravitational potential energy
- D. Cannot determine
4. Regarding gravitational potential energy, which of the following statements is correct?
- A. Only moving objects possess gravitational potential energy
- B. The gravitational potential energy of an object on the ground must be zero
- C. For the same object, the higher the position, the greater the gravitational potential energy
- D. Objects with greater mass must have greater gravitational potential energy
5. True or False: During a diver's descent, their gravitational potential energy gradually increases.
- True
- False
6. If a ball with a mass of $2 ext{kg}$ falls from a height of $5 ext{m}$ (g is taken as $10 ext{N/kg}$), what is its initial gravitational potential energy?
- A. $10 ext{J}$
- B. $20 ext{J}$
- C. $50 ext{J}$
- D. $100 ext{J}$
7. If we want to quadruple the gravitational potential energy of an object, the measure we can take is:
- A. Keep mass constant, double height
- B. Keep height constant, quadruple mass
- C. Halve mass, double height
- D. Halve both mass and height
8. In which of the following scenarios is gravitational potential energy converted into kinetic energy?
- A. An arrow shot from a drawn bow
- B. Water released from a hydroelectric dam turning a turbine
- C. A rocket accelerating upwards
- D. A spring door closing automatically