The energy of SHM is maximum at_______________?
Correct answer: D. All positions during SHM
- A. Mean position
- B. Extreme position
- C. In between mean and extreme
- D. All positions during SHM
Explanation
The total mechanical energy of ideal SHM is E = 1/2 kA² and remains constant as kinetic energy changes into potential energy and back. It is therefore the same maximum total energy at every position during the motion. The likely mistake is choosing b because potential energy, not total energy, is maximum at an extreme position.
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About Simple Harmonic Motion
Simple harmonic motion is oscillation in which acceleration is directly proportional to displacement and directed toward the equilibrium position. Work includes displacement, velocity, acceleration, phase, period, frequency, amplitude and energy, with applications to springs and simple pendulums. The restoring force and the conditions for SHM distinguish it from general periodic motion.
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