Science Light & Sound Vocabulary Quiz

_____ is a form of energy that helps us see the colorful world around us.

• light

• sound

When rays of light change direction as they hit a smooth surface.

• reflection

• refraction

Bending or changing direction. When light passes from air into water it slows and bends. This is called ____________.

• reflection

• refraction

If something is ________ it lets light pass through it.

• translucent

• transparent

• opaque

______ materials let some light through the material. Some of the light is reflected and a little is absorbed by the material.

• transparent

• translucent

• opaque

_____ means that no light can pass through it. This type of material blocks the light.

• transparent

• translucent

• opaque

______ is a vibration or wave that travels through the air, and one it has reached your ear, you can hear it.

• light

• sound

How high or low a sound is, is called _______.

• pitch

• frequency

• volume

________ is measured in the number of sound vibrations that happen in one second.

• pitch

• frequency

• volume

_______ of a sound depends on the amount of energy the sound waves carry. A sound with a lot of energy is loud. Softer sounds have less energy.

• pitch

• frequency

• volume