Kinetic and gravitational potential energy Quiz
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5 questions, one answer each
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1. A 4 kg trolley moves at 5 m/s. What is its kinetic energy?
- A. 50 J
- B. 20 J
- C. 100 J
- D. 10 J
2. Which energy change happens as a pendulum swings from the top of its swing to the bottom?
- A. KE to GPE
- B. GPE to KE
- C. Chemical to GPE
- D. Elastic to KE
3. What is the GPE of a 2.0 kg book on a shelf 1.5 m above the floor? (g = 10 N/kg)
- A. 3.0 J
- B. 0.30 J
- C. 15 J
- D. 30 J
4. A 0.50 kg ball has 25 J of kinetic energy. What is its speed?
- A. 5 m/s
- B. 10 m/s
- C. 50 m/s
- D. 100 m/s
5. A car doubles its speed. What happens to its kinetic energy?
- A. It doubles
- B. It stays the same
- C. It is four times bigger
- D. It halves