8th Grade Wave/Galaxy Study Guide

Cell phones use_____________waves.

• Microwaves
• Gamma
• XRays
• Radio 

________________ are waves used by cops to test the speed of your car with RADAR.

• Ultraviolet
• Infrared
• Radio
• Microwaves

EM waves________________travel through space.

• Never
• Cannot
• Can
• Wish they could

_____ have the longest wavelengths and lowest frequencies of all electromagnetic waves.

• microwaves
• radio waves
• gamma rays
• ultraviolet

_______ carry the greatest amount of energy. 

• x-rays
• gamma rays
• infrared rays
• visible light

What are the hazards associated with radio waves

• None
• Harmful to humans
• Burn skin
• Cause cancer

The _______________ determines the color of visible light. 

• wavelength
• speed
• amplitude
• light

High frequency waves have _________ wavelengths.

• varying
• long
• the same
• short

All electromagnetic waves have the same...

• frequency
• speed
• wavelength
• energy

This type of Electromagnetic wave shows a break in bones.

• gamma ray
• x-ray
• brokenometer
• radio wave