Grandfather Clocks Are Designed in a Way That the Weight

question 69

Multiple Choice

Grandfather clocks are designed in a way that the weight at the bottom of the pendulum can be moved up or down by turning a small screw. Suppose you have a grandfather clock at home that runs slow. Should you turn the adjusting screw so as to raise the weight or lower the weight?

• A) Raise it.
• B) Lower it.
• C) It doesn't matter if you raise or lower the weight as long as you displace it by the right amount.
• D) It doesn't matter if you raise or lower the weight, as long as you displace it with the correct initial velocity.
• E) Raising or lowering the weight doesn't help. The screw is there so that you can add or take away weight.