8th grade Unit 3 Quiz 4

Match these

• both

• light

• radiant energy

• travels in waves

• mechanical energy

• sound

Match these

• longitudinal wave

• light

• the ability to do work

• sound

• transverse wave

• energy

Order these colors from least energy to most energy

• orange

• blue

• green

• red

• purple (violet)

Order these radiant energy forms from least energy to most energy

• microwave

• infrared

• radio

• visible

What three things may happen to light that strikes an object? 

• The light may be reflected, transmitted or absorbed.
• The light may be reflected and refracted.
• The light may be absorbed and transmitted.

Which of the following is the best example of an object absorbing light?

• A black sweater in the sun.

• A clean window in the sun.

• A curved mirror in the sun.

• A long shadow in the sun.

The bouncing of light off an object is ....

• a mirror
• absorption
• reflection
• refraction

This leaf will

• Reflect green light

• Absorb green light

• Reflect red light

• Reflect no light

Which has more energy than visible light?

• Microwaves

• Radio waves

• Infrared light

• Gamma rays

What is the earth's primary source of light energy?

• moon

• sun

• waves

• fire