Multiple choice general knowledge science & technology

When the mass of a pendulum in a clock is increased, then

  1. The period increases and the clock loses time

  2. The period increases and the clock gains time

  3. The period decreases and the clock gains time

  4. The period remains constant and the clock maintains correct time

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The period of a simple pendulum depends only on its length (T = 2π√(L/g)) and is independent of mass. Changing the pendulum bob's mass doesn't affect the period, so the clock continues to keep correct time. The pendulum's timekeeping is based on length and gravity, not mass.