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7th grade science 5.
7th grade science unit 5.1
| Term | Definition |
|---|---|
| wave | disturbance that transfers energy from one place to another. |
| medium | the material through witch waves travel. |
| transfer waves | partial's move perpendicularly to the direction the waves travel. |
| mechanical waves | waves that require a medium. |
| electromagnetic waves | disturbances in electronic and magnetic fields. |
| longitudinal waves | particals move back and fourth in the same direction that the wave travels or parallel to the wave. |