Light Unit Test

Which of the above waves has the longest wavelength?

• a. Wave #1
• b. Wave #2
• c. Wave #3
• d. Wave #4

Which number on the diagram shows the wavelength?

• a. 1
• b. 2
• c. 3
• d. 4

A person will see a flash of lightning before they hear the thunder that goes with it because___________.

• a. the eye is quicker than the ear
• b. the thunder occurs much later than the lightning
• c. sound travels faster through the atmosphere than light
• d. light travels faster through the atmosphere than sound.

Which diagram shows a wave with the highest frequency?

• A
• B
• C
• D

When light hits an object, the rays can pass through it,bounce off it, or be absorbed by it. Light rays that bounce back are ________________,

• a. radiant
• b. reflected
• c. refracted
• d. radar

Which explains why the fork looks different under water?

• Light is refracted at an agle
• b. The wavelength of light lengthens.
• c. Light cannot pass through the glass.
• d. The amount of light increases when going through the eater

Which of these correctly shows how light acts when it hits a mirror?

• F
• G
• H
• J

Which tool is used to separate white light into the color spectrum?

• 
• 
• 
• 

What color is no longer in the visible spectrum?

• Indigo
• Red
• Orange
• Yellow
• Green

Below is a light wave. What does B represent?

• Crest
• Trough
• Wavelength
• Frequency