Measuring from one point on a wave to another, such as from crest to crest or trough to trough is called 

• amplitude
• wavelength
• crest
• trough

The distance from the equilibrium to the crest or trough of the wave is called 

• amplitude
• wavelength
• crest
• trough

We need _________in order to see.

• shadows

• trees

• mirrors

• light

The sun and other light sources give off rays of light that travel in a _______path.

• curved
• wavelike
• straight
• circular

We can see an object because after the light hits the object it is _________ back to our eyes.

• reflected
• waved
• absorbed

_____________ is contained within a beam of white light.

• All color
• No color

A plane mirror has a _______ reflective surface.

• curved
• wavy
• flat

An object will appear _________ distance behind the mirror as it is from the mirror.  

• half the
• the same
• twice the

The highest point the wave reaches is called the 

• crest
• trough
• wave
• amplitude

The lowest point the wave reaches is called the

• crest 
• trough
• wave
• amplitude