Light and Sound Energy

The loudness of a sound is the ____________.

• lens

• volume

• pitch

• concave

The frequency at which sound waves move determines the ______________________.

• pitch

• volume

• convex

• lens

The bending of light waves is called ________________________.

• lens

• rarefraction

• refraction

• reflection

Light bouncing off an object is _________________.

• rarefraction

• refraction

• reflection

• lens

A piece of clear material that bends, or refracts, light rays passing through it is known as a ______________.

• lens

• reflection

• volume

• rarefraction

Which type of lens makes nearby objects appear larger, and have a thicker middle than edge?

• concave

• convex

What type of lens makes objects in the distance seem nearer and smaller, and is thicker around the edges than the middle?

• concave

• convex

Light energy moves as waves called ___________________.

• magnetic waves

• electric waves

• sound waves

• electromagnetic waves

As sound waves travel, molecules squeeze together. This is called ______________.

• waves

• vibration

• rarefraction

• compression

When the pressure on sound molecules drops it is called _______________.

• wavelength

• rarefraction

• vibration

• compression