Period & Frequency

Period & Frequency

Essential Questions

1. What's the connection between simple harmonic motion (SHM) and universal cirucular motion (UCM)

2. How are period, frequency, and time related?

H.P.3D.4 Use mathematical and computational thinking to analyze problems that relate the frequency, period, amplitude, wavelength, velocity, and energy of sound waves.

Intro to Simple Harmonic Motion

Watch this video on Simple Harmonic Motion to get a primer on what you guys will be learning this week!

There's no need to take notes on these videos. Just watch them and absorb their content as best you can.

Multiple Choice

If it takes 50 seconds for an object to travel around

a circle 5 times, what is the period of its motion?

Watch this video to check your work!

https://njctl.org/video/?v=BHryxYo-Tdc

• 5 s

• 10 s

• 25 s

• 40 s

Multiple Choice

If an object is traveling in circular motion and its

period is 7.0s, how long will it take it to make 8

complete revolutions?

Watch this video to check your work!

https://njctl.org/video/?v=EEfrv73yUho

• 1.1 s

• 11 s

• 39 s

• 56 s

Multiple Choice

An object travels around a circle 50 times in ten

seconds, what is the frequency (in Hz) of its

motion?

Watch this video to check your work!

https://njctl.org/video/?v=T52fxgs1qg0

• 5.0 Hz

• 10 Hz

• 50 Hz

• 500 Hz

Multiple Choice

If an object is traveling in circular motion with a

frequency of 7.0 Hz, how many revolutions will it

make in 20s?

Watch this video to check your work!

https://njctl.org/video/?v=uxu9q_WGcjc

• 3.0

• 13

• 38

• 140

Multiple Choice

An object has a period of 4.0s, what is the

frequency of its motion (in Hertz)?

Watch this video to check your work!

https://njctl.org/video/?v=eAkyGQSkZwk

• 0.25 Hz

• 0.41 Hz

• 0.67 Hz

• 0.89 Hz

Multiple Choice

An object is revolving with a frequency of 8.0 Hz,

what is its period (in seconds)?

Watch this video to check your work!

https://njctl.org/video/?v=9AvmyVjdb3M

• 0.020 s

• 0.070 s

• 0.11 s

• 0.13 s

Multiple Choice

An object is in circular motion. The radius of its

motion is 2.0 m and its period is 5.0s. What is its

velocity?

Watch this video to check your work!

https://njctl.org/video/?v=waqsDkFEDiY

• 1.9 m/s

• 2.5 m/s

• 3.1 m/s

• 4.6 m/s

Multiple Choice

An object is in circular motion. The radius of its

motion is 2.0 m and its frequency is 8.0 Hz. What is

its velocity?

• 14 m/s

• 34 m/s

• 67 m/s

• 101 m/s