1.

Why does a pendulum clock run fast on cold winter days?

Answer»

The pendulum's period depends on the length of the rod, and  it changes between summer and winter, as the rod expands and contracts with changes in temperature. 
Rods get longer in warmer weather, shorter in colder weather. With a shorter rod, a pendulum will swing faster and a clock will run faster. With a longer rod, the pendulum will swing slower and the clock will slow down.



Discussion

No Comment Found

Related InterviewSolutions