#176 Unit 8 Test Review

If the flashlight in the diagram strikes the mirror at a 45 degree angle, at what angle will it be reflected, according to the law of reflection?

• 45 degrees

• 90 degrees

• 0 degrees

• 180 degrees

Which reason best explains why this is what he observed?

• A) Water is more dense than glass so the light slowed down more.

• B) Water is less dense than glass so the light slowed down more.

• C) Glass is more dense than water so the light slowed down more.

• D) Glass is less dense than air so the light sped up more.

The components of the electromagnetic spectrum share all of the characteristics below EXCEPT...

• A) they can all be absorbed by matter

• B) they all travel at the speed of light

• C) they all have the same frequency

• D) they are all emitted from the sun

A _____ object will absorb all colors of light, while a ____ object will reflect all colors of light.

• black, white

• white, black

• blue, red

• red, blue

Drag and drop the components of the EM spectrum from the lowest energy to highest energy.

a

b

c

d

e

f

g

microwaves

x rays

visible light

ultraviolet

Radio

infrared

gamma rays

The part of the EM spectrum with the highest frequency is (a)   ..

• gamma
• radio
• visible light

The part of the EM spectrum with the lowest frequency is (a)   .

• gamma
• radio
• visible light

The least dangerous part of the EM spectrum is (a)   .

• gamma
• radio
• visible light

The most dangerous part of the EM spectrum is (a)   .

• gamma
• radio
• visible light

The part of the EM spectrum with the longest wavelength is (a)   .

• Radio Waves

• Microwaves

• Infrared

• Visible Light