click below
click below
Normal Size Small Size show me how
8th Grade Science
Waves
| Question | Answer |
|---|---|
| wave | the transfer of energy moving through a medium |
| amplitude | a measure of how far the particles in the medium move away fro their normal rest position |
| wave length | the distance from any point on a wave to an identical point on the next wave |
| wave period | the time required for one wave length to pass a given point |
| frequency | tells how many cycles occur in an amount of time |
| hertz | one equals one wavelength per second |
| wave speed | speed at which a wave travels depending on the properties of the medium |
| transverse wave | a wave in which the particles of the medium move perpendicularly to the direction of the wave is moving |
| electromagnetic wave | a wave that is emitted by vibrating electrical charges and can travel through a vacuum. |
| mechanical wave | a wave that requires a medium in which to travel |
| longitudinal wave | a wave in which the particles of the medium vibrate parallel to the direction of wave motion |
| medium | material that energy can transfer through |