Which waves require a medium (matter) to travel?

• x-ray

• microwave

• sound 

• water

is a disturbance in matter that transfers energy through the matter.

• Hand Wave

• Mechanical Wave

• Hair Wave

• Flag Wave

The matter through which the wave travels is called a

• US Mail

• email

• medium

• car

When light waves bend as they pass through a transparent medium we call this:

• Refraction

• Reflection

• Absorption

When light waves are captured in matter and transferred to a new form of energy we call this:

• Absorption

• Reflection

• Refraction

A carbon nanotube capturing light is an example of:

• Reflection

• Refraction

• Absorption

What is the definition of Diffraction?

• The bending of waves as they enter a new medium

• Bouncing back of waves from a surface that it can’t pass through

• When two interfering waves have a displacement in the opposite direction, crest and trough overlap. Zero amplitude.

• The bending of waves as they pass through openings or around corners

Refraction occurs when _____________

• the wave's speed changes by entering a new medium
• a wave bounces off of a boundary
• waves parts meet each other
• waves bend around a barrier

Which colors would you use to make the color Yellow?

• Red

• Green

• Blue

A leaf appears green because what colors are reflected? (Select all that apply)

• Yellow

• Green

• Blue

• Red

• No colors are reflected