Waves Review

Which of the following is not an example of approximate simple harmonic motion?

• a ball bouncing on the floor
• a child swinging on a swing
• a piano wire that has been struck
• a car's radio antenna waving back and forth

The angle between the string of a pendulum at its equilibrium position and at its maximum displacement is the pendulum’s

• period.
• frequency.
• vibration.
• amplitude.

For a system in simple harmonic motion, which of the following is the time required to complete a cycle of motion?

• amplitude
• period
• frequency
• revolution

For a system in simple harmonic motion, which of the following is the number of cycles or vibrations per unit of time?

• amplitude
• period
• frequency
• revolution

An amusement park ride has a frequency of 0.064 Hz. What is the ride’s period?

• 0.064 sec
• 6.4 sec
• 2pi / 0.064
• 15.625 sec

An amusement park ride swings back and forth (like a pendulum) once every 17.4 s. What is the ride’s frequency?

• 0.0575 sec
• 0.0575 hz
• 17.4 sec
• 17.4 hz

A pendulum takes 2 seconds to complete one cycle. What is its period?

• 1/2 sec
• 2 sec
• 4 sec
• 1 sec

A pendulum takes 20 seconds to complete one cycle. What is its period?

• 1/20 sec
• 10 sec
• 20 sec
• 5 sec

A pendulum has 10 cycles in 1 second. What is its frequency?

• 1 Hertz
• 5 Hertz
• 10 Hertz
• 15 Hertz

A pendulum has a frequency of 4 Hertz (Hz). Find its period.

• 4 sec
• 2 sec
• 1/2 sec
• 1/4 sec