7-4 Wave Speed

Presentation

•

Science

•

9th - 12th Grade

•

Medium

•

NGSS

HS-PS4-1

Standards-aligned

g Custer

Used 6+ times

FREE Resource

6 Slides • 10 Questions

7-4 Explain: Wavelength and Frequency

Mr. Custer's Physics

Today's

Date

Add this Header in your Lab Notebook!

Learning Objectives

Relate wave speed to wavelength and wave frequency.
Show how to calculate wave speed.
Explain how wave speed is related to the medium of a wave.

Mechanical

Waves

 Require a medium for the vibrations to travel.
The speed at which they travel depends on the medium.

Electromagnetic Waves

All electromagnetic waves travels at the speed of light 3.0 x 10⁸ m/s in a vacuum.
They travel fastest in less dense medium.
Ex: Radio waves, Microwaves, Infrared, Visible Light, Ultraviolet, X-rays, and Gamma Ray.

Multiple Choice

When a mechanical wave is sent, ______ moves through the particles in the mediums. These particles then move back and forth sending the wave throughout the medium.

reflections

electromagnetic waves

vibrations

light

matter

Multiple Choice

Sound waves move the fastest through....

gases

liquids

solids

Velocity: m/s

Wavelength: m

Frequency: Hertz

Equation Triangle

Use the triangle to rearrange the wave speed equation.
1. Cover the unit you need to calculate.
2. The horizontal line represents division.
3. The vertical line represents multiplication

Multiple Choice

The vertical line means

addition

subtraction

multiplication

division

Multiple Choice

The horizontal line means

addition

subtraction

multiplication

division

Multiple Choice

Frequency =

Wave speed * Wavelength

Wave speed / Wavelength

Wave speed + Wavelength

Wave speed - Wavelength

Multiple Choice

Wavelength =

Wavespeed * Frequency

Wavespeed / Frequency

Frequency * Wavespeed

Frequency/wave speed

Multiple Choice

Wavespeed =

Wavelength * Frequency

Wavelength / Frequency

Wavelength + Frequency

Wavelength - Frequency

Multiple Choice

A wave has frequency of 50 Hz and a wavelength of 10 m. What is the speed of the wave?

500 m/s

50 m/s

5 m/s

0.5 m/s

Multiple Choice

A wave has frequency of 5 Hz and a speed of 25 m/s. What is the wavelength of the wave?

25 m

125 m

5 m

25 m/s

Multiple Choice

What is the frequency of a wave traveling at 300 m/s with a 4 m wavelength?

0.013 Hz

75 Hz

300 Hz

1200 Hz

7-4 Explain: Wavelength and Frequency

Mr. Custer's Physics

Today's

Date

Add this Header in your Lab Notebook!

Learning Objectives

Relate wave speed to wavelength and wave frequency.
Show how to calculate wave speed.
Explain how wave speed is related to the medium of a wave.

Show answer

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