Grandfather clocks are designed so they can be adjusted by moving the weight at the bottom of the pendulum up or down. Suppose you have a grandfather clock at home that runs fast. Which of
The following adjustments of the weight would make it more accurate? (There could be more than
One correct choice.)
A) Add more mass to the weight.
B) Remove some mass from the weight.
C) Raise the weight.
D) Decrease the amplitude of swing by a small amount.
E) Lower the weight.

Question

Quizplus · Accepted Answer

Lowering the weight increases the pendulum's length, which increases the period and slows down the clock, making it more accurate if it was running fast.

Grandfather Clocks Are Designed So They Can Be Adjusted by Moving