1. As pendulum length increases, the period of harmonic motion increases / decre

Question

1. As pendulum length increases, the period of harmonic motion increases / decreases / remains the same.

2. As pendulum mass increases, the period of harmonic motion increases / decreases / remains the same.

3. As gravity on the pendulum increases (as on Jupiter), the period of harmonic motion

increases / decreases / remains the same.

4. A pendulum that completes a cycle in 4 seconds has a period of ____________seconds.

5. That same pendulum has a frequency of ____________cycles per second.

6. What is the period (on earth) of a .25 kg pendulum with a length of .45 m? (use the formula) ____________

7. In order to swing with a period of exactly 2.0 s, a grandfather clocks 1.5 kg pendulum must have a length of ______m.

8. The gravity on Planet X is greater than it is on the moon. True or False?

Explanation / Answer

1) increases

2) remains same

3) decreases

4) 4 seconds

5) 1/4 = 0.25 hz

6) T = 2*pi*sqrt(L/g) = 1.35 s

7) T = 2*pi*sqrt(L/g)

L = T^2*g/(4*pi^2) = 0.994 m = 99.4 cm

8) True

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