Energy in oscillations and damping Quiz
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5 questions, one answer each
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1. A spring oscillator has total energy 0.20 J. If its amplitude is doubled, what is the new total energy?
- A. 0.40 J
- B. 0.80 J
- C. 0.20 J
- D. 1.6 J
2. At which point is the potential energy of a mass on a spring greatest?
- A. At the equilibrium position
- B. Halfway between equilibrium and the amplitude
- C. At the maximum displacement
- D. It is constant throughout
3. A pendulum swings with smaller and smaller amplitude. What is the main energy change?
- A. Kinetic energy is destroyed
- B. Mechanical energy is transferred to thermal energy of the surroundings
- C. Gravitational potential energy is converted to elastic energy
- D. The mass of the bob decreases
4. What does the area inside a loading–unloading loop for a ductile metal represent?
- A. The elastic limit
- B. The Young modulus
- C. The energy transferred to thermal energy per cycle
- D. The breaking stress
5. Which type of damping returns a system to equilibrium in the shortest time without oscillating?
- A. Light damping
- B. Critical damping
- C. Heavy damping
- D. No damping