AP Physics 1 Question 28: Answer and Explanation

Test Information

Use your browser's back button to return to your test results.

Question: 28

8.

A simple pendulum executes simple harmonic motion as it swings through small angles of oscillation. If θmax denotes the amplitude of the oscillations, which of the following statements is true?

  • A. When θ = 0, the tangential acceleration is 0.
  • B. When θ = θmax, the tangential acceleration is 0.
  • C. When θ = 0, the speed is 0.
  • D. When θ = 0, the restoring force is maximized.

Correct Answer: A

Explanation:

A At the instant a simple harmonic oscillator passes through equilibrium, the restoring force is zero. Therefore, the tangential acceleration of the pendulum is also zero.