Waves & Their Properties

Waves

Light & Sound

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Earth Science8th Grade

This lesson contains 25 slides, with interactive quizzes and text slides.

Items in this lesson

Waves

Light & Sound

Slide 1 - Slide

Define the following vocabulary words:

Light

Electromagnetic spectrum

Radio waves

Infrared

Visible light

Ultraviolet

X-ray

Gamma ray

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What is the unit used to measure the frequency of a wave?

Watt

Newton

Volt

Hertz

Slide 9 - Quiz

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Slide 11 - Slide

Which color of light has the shortest wavelength?

Green

Violet

Yellow

Red

Slide 12 - Quiz

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What is the phenomenon that causes light to change direction when passing through a medium?

Reflection

Dispersion

Diffraction

Refraction

Slide 14 - Quiz

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Slide 16 - Slide

What is the speed of light in a vacuum?

1,000,000 miles per hour

299,792,458 meters per second

100 kilometers per hour

10 meters per second

Slide 17 - Quiz

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What happens to the wavelength of a wave when its frequency increases?

It increases

It decreases

It remains the same

It is unrelated

Slide 25 - Quiz