Sound and Light Energy Ch. 14

The type of energy that is formed by vibrating objects...

• sound energy
• vibrations
• chemical energy
• physical energy

Light and sound waves both have

• vacuums
• pitches
• energy
• the same frequency

The iris muscle in your eye controls

• how much music you hear
• how often you blink
• what you see
• how much light enters the eye

Solids is the type of matter that sound travels through most

• slowly
• quickly
• freely

An echo is made when

• a sound wave bends
• sound is absorbed
• a sound wave hits a surface, bounces off of it and is heard again
• you talk into your hand

The bouncing back of a wave off an object or surface

• reflection
• transparent
• pitch
• refraction

Materials that do not let any light pass through them

• opaque
• translucent
• transparent
• reflection

A measure of whether a sound seems to high or low

• frequency
• wavelength
• pitch
• echo

The distance between a point on one wave and a similar point on the next wave

• frequency
• pitch
• wavelength
• compression

Materials that let some light rays pass through but scatter some of the other rays

• translucent
• transparent
• opaque
• wood