Light Unit Review

How are electromagnetic waves different from other waves?

• They have very short wavelengths.

• They transmit energy instead of matter.

• They can travel through a vacuum and through matter.

• They can change direction by reflection when they strike an object.

Tags

NGSS.MS-PS4-2

The illustration shows a transverse wave. Which line segment measures the wavelength of the wave?

• segment A

• segment B

Tags

NGSS.MS-PS4-1

The illustration shows a transverse wave. Which letter indicates a crest of the wave?

• A

• B

• C

• D

Tags

NGSS.MS-PS4-1

The illustration shows a transverse wave. Which letter indicates a trough ?

• A

• B

• C

• D

Tags

NGSS.MS-PS4-1

What do waves carry through objects?

• sound

• light

• energy

• water

Tags

NGSS.MS-PS4-1

The electromagnetic spectrum is the complete range of electromagnetic radiation ranging from radio waves to gamma rays. Which type of radiation in this spectrum is associated with observable colors such as red, green, and blue?

• gamma rays

• X-rays

• visible light

• radio waves

The diagram shows waves that are ____.

• seismic

• mechanical

• longitudinal

• electromagnetic

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2

Which of these colors of visible light has the shortest wavelength?

• red

• green

• violet

• yellow

Which of the following makes up the smallest region in the electromagnetic spectrum?

• radio waves

• infrared light

• visible light

• gamma rays

Which of the following makes up the smallest region in the electromagnetic spectrum?

• radio waves

• infrared light

• visible light

• gamma rays