Revision

How are light and sound ALIKE?

• Both travel as rays

• Both depend on vibrations in air

• Both can vary in pitch

• Both are forms of energy that travel as waves

The frequency of a sound wave determines it _________.

• amplitude

• pitch

• energy

• volume

Sally's voice is higher pitched than Lucy's. Which is true?

• Sally's vocal cords vibrate faster than Lucy's

• Sally speaks at a greater range of frequencies than Lucy

• Sally can speak at a higher amplitude than Lucy.

• Lucy speaks at a higher volume than Sally.

The bending of light as it moves from one transparent material to another

• reflection

• refraction

• pitch

• spectrum

Volume describes

• how high or low a sound is

• how loud or quiet a sound is

• how long the sound lasts

• how beautiful the sound is

A black cat

• reflects black light

• absorbs all colors of light

• reflects all colors of light

• reflects white light

_________materials allow some light to pass through, but some light is scattered.

• transparent

• translucent

• opaque

• concave

______materials do not allow light to pass through.

• opaque

• transparent

• translucent

• concave

_________materials allow light to pass straight through

• translucent

• transparent

• opaque

• concave

A pink kite ______.

• absorbs pink light and reflects the other colors

• reflects pink light and absorbs all the other colors

• absorbs all the colors

• reflects all the colors