In simple harmonic motion, which two quantities are always in opposite directions:
Correct answer: D. Acceleration and displacement
- A. Kinetic energy and potential energy
- B. Kinetic energy and velocity
- C. Velocity and acceleration
- D. Acceleration and displacement
Explanation
In SHM, acceleration is directly proportional to displacement. a = - w2 xIn SHM, the acceleration of the oscillating object is directly proportional to its displacement from the equilibrium position, but it acts in the opposite direction. When the object is displaced from its equilibrium position, the acceleration acts towards the equilibrium position, trying to restore the object to its equilibrium position. As the object moves away from the equilibrium position, the acceleration is directed towards it, opposing the displacement.
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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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