Light Energy Test

How long does it take light to travel from the sun to Earth?

• 7 minutes

• 8 minutes

• 9 minutes

• 12 minutes

According to Albert Einstein, what moves faster than light?

• speed

• sound

• energy

• nothing

In the 1600s, what famous scientist studied rainbows made with a prism?

• Albert Einstein

• Robert Boyle

• Dr. Suess

• Sir Isaac Newton

Which is NOT one of three types of light waves that we cannot see?

• infrared light

• ultraviolet light

• x-ray light

• visible light waves

Which color has the longest wavelengths of light?

• purple

• red

• blue

• yellow

What does the word refract mean?

• to change direction, or bend, light waves

• to break light

Which of these is opaque: water, plastic, or wood?

• water

• plastic

• wood

• transparent paper

A single particle of light is called a...

• proton

• photon

• atom

• molecule

What chemical is in a firefly's body to help it produce light?

• luciferin

• hydrogen

• melanin

• thermal energy

What type of light can most insects see that people cannot?

• fluorescent

• ultraviolet

• radioactive

• flashlight