revision/periodic motion

A simple harmonic oscillator takes 4.8 s to undergo five complete vibrations. What is the period (T) of 1 cycle?

• 4.8 s
• .96 s
• 9.8 s

The period of a pendulum may be decreased by

• Increasing the mass of the bob
• moving the equilibrium point
• decreasing the mass of the bob
• shortening the length of pendulum

Pendulum "A" is on Jupiter Pendulum "B" is on the Moon.  The Moon has less gravity than  Jupiter the pendulums have the same mass and length.  Which Pendulum is moving faster?

• A
• B
• Same

Tags

NGSS.HS-PS2-4

Which would have the longest period?

Pendulum A: A 200-g mass attached to a 1.0-m length string

Pendulum B: A 400-g mass attached to a 0.5-m length string

• A

• B

• Same

What is the period on Earth of a pendulum with a length of 2.4 m?

• 3.1 sec
• 1.9 sec
• 9.3 sec
• 5.1 sec

Tags

NGSS.HS-PS2-4

Batman and Robin swing from ropes attached to a large elevated platform. Suppose that they can be treated as a simple pendulum with a length of 16 m. Determine the period for one complete back and forth cycle.

• 16 s
• 4 s
• 8 s
• 6 s

True/False: The time for a complete back-and-forth swing of a pendulum is its frequency.

• True
• False

The time that it takes to complete one wave cycle is called the...

• frequency
• period
• amplitude
• wavelength

Tags

NGSS.HS-PS4-1

The number of cycles that are completed per second is called the _ and is measured in _.

• frequency, Hertz
• wavelength, meters
• amplitude, meters
• period, seconds

Tags

NGSS.HS-PS4-1

The period of an ocean wave is 10 s. What is its frequency?

• 10 Hz
• 1 Hz
• 0.5 Hz
• 0.1 Hz

Tags

NGSS.HS-PS4-1