A form of energy that you can see is ______________

• sound

• light

• thermal

• nuclear

Light travels in a ____________ line.

• wavy

• curved

• straight

• bent

How fast does light travel through empty space (a vacuum) in miles per second?

• 5920

• 343

• 18,600

• 186,000

What is a good example of an object that shows reflections?

• beach towel

• brick wall

• mirror

• camera

Does refraction occur when light rays bounce or bend?

• bounce

• bend

Does light travel slower in air or water?

• air

• water

Light that humans can see is called the ____________ spectrum.

• ultraviolet

• infrared

• visible

• gamma ray

All the colors of light mixed together produces __________ light.

• black

• brown

• white

• no

A blue object appears blue because it __________ blue light.

• absorbs

• reflects

• refracts

• likes

A ___________ is an object that contains a lens.

• clock

• ballpoint pen

• microwave

• microscope