A _________ is a repeating disturbance or vibration that transfers or moves energy from place to place.
Wave
The highest point of a wave.
Crest
When two waves interact with each other in the same medium, this is called.
Interference
The slowest type of electromagnetic wave with the longest wavelength.
Radio Waves
What part of the human eye is responsible for controlling the amount of light our eyes let in?
Iris
A ______________ is a material through which waves can travel and can be a solid, liquid, or gas.
Medium
The lowest point of a wave.
Trough

Constructive Interference
What is the only type of electromagnetic wave we can see?
Visible Light
What part of the human eye acts as a "movie screen" playing the picture upside down?
Retina
_____________ waves require the particles of the medium to vibrate in order for energy to be transferred.
Mechanical
The measurement of crest to crest or trough to trough.
Wavelength

Deconstructive Interference.
What is the electromagnetic with the most energy?
Gamma Rays
We need glasses when what part of the human eye is not working correctly?
What type of wave is this?

Transverse Wave
The amount of wavelength that happens during a period of time. Ex. Wavelength/Sec
Frequency
The bouncing back of a wave when it meets a surface or boundary.
Reflection
Which wave gives Vitamin D, but can also cause a sunburn.
Ultra Violet rays.
Cornea
What kind of Wave is this?
Longitudinal Wave
The shorter the wavelength the greater the _______.
Energy and/or Frequency
Sunlight going into the sand and making it hot is called.
Absorption
Infrared Radiation
What is the organ that flips the image in the retina and sends it to the brain?
Optic Nerve