Measurement and experimentation

What is the unit for the period of a pendulum?

• second

• meter

• m/s/s

• Newton

As a pendulum gets longer, what happens to the period?

• doesn't change

• decreases

• increases

What is the name of the mass on a pendulum?

• ion

• graviton

• oscillating mass

• bob

Which of these does not affect the period of a pendulum?

• length

• gravity

• mass

What is the unit of length for physics?

• newton

• joule

• lux

• meter

A pair of trapeze performers at the circus is swinging from ropes attached to a large elevated platform. Suppose that the performers can be treated as a simple pendulum with a length of 16 m. Determine the period for one complete back and forth cycle. (Useful equations are on the board).

• 2 sec

• 12 sec

• 8 sec

• 10 sec

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

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

• True
• False

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

• frequency, cycles/second

• 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 cycle/second

• 1 cycle/second

• 0.5 cycle/second

• 0.1 cycle/second

Tags

NGSS.HS-PS4-1