The distance in a wave from the resting position to the top of the crest or to the bottom of the trough

the bending of light as it passes from one material to another

all of the energy waves that travel at the speed of light in a vacuum; includes radio, infrared, visible, ultraviolet, x rays, and gamma rays

allowing almost all light to pass through

energy that is due to the position of motion. Energy at rest

The rule stating that the total amount of energy in a closed system is always the same-energy cannot be created nor destroyed

not allowing any light to pass through

the distance from the middle of the crest of one wave to the middle of the crest of the next wave

the bouncing of light off a surface

the ability to cause change in matter

the number of vibrations or waves that pass a certain point in a given amount of time

the bending of light around the edge of an object

the energy of motion

allowing some light to pass through