| A | B |
|---|
| wave | a disturbance that carries energy through a medium. |
| _____ is necessary to produce waves. | energy |
| medium | the substance or matter through a wave travels. |
| amplitude | distance from medium to crest or trough. |
| wavelength | distance from the crest to another crest. |
| frequency | number of waves per unit of time. |
| transverse waves move ________. | up and down |
| longitudinal waves move ________. | side to side. |
| reflection | bouncing back of a wave after it strikes a boundary |
| refraction | bending of light due to change in speed. |
| why cant you cause a floating leaf to move to the edge of a pond by throwing stones behind it? | the waves will move through it and it will go up and down. |
| sound waves need a ____, but _____ don't. | medium, light waves. |
