When the length of a simple pendulum increases, its frequency will
Correct answer: B. Decrease
- A. Increase
- B. Decrease
- C. Become zero
- D. Remain constant
Explanation
The correct answer is Option B:decrease. The frequency of a simple pendulum is inversely related to the square root of its length. This means that as the length of the pendulum increases, the frequency decreases because the pendulum takes longer to complete each oscillation. Option A is incorrect because the frequency does not increase with length. Option C is incorrect because the frequency does not become zero; the pendulum continues to oscillate. Option D is incorrect because the frequency does not remain constant; it changes with the length of the pendulum.
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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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