(Multiple choice)

(1) True or false:

The motion of a simple pendulum is periodic for any initial angular displacement.

(2)

Two clocks have simple pendulums of identical lengths L. The pendulum of clock A swings through an arc of 10°; that of clock B swings through an arc of 5°. When the two clocks are compared one will find that

(a) A runs slow compared to B.

(b) A runs fast compared to B.

(c) Both clocks keep the same time.

(d) The answer depends on the length L.

(3)

A simple-pendulum clock keeps accurate time when its length is L. If the length is increased a small amount, how will the accuracy of the clock be affected?

(a) The clock will lose time.

(b) The clock will gain time.

(c) The clock will continue to keep accurate time.

(d) The answer cannot be determined without knowing the original length of the pendulum.

(e) The answer cannot be determined without knowing the percent increase in the length of the pendulum.

(4) True or false

The energy of a damped, undriven oscillator decreases exponentially with time.

(5) True or false:

(a) Resonance occurs when the driving frequency equals the natural frequency.

(b) If the Q value is high, the resonance is sharp.