Across
- 5. the change in direction of wave that occurs as the wave changes speed when moving from one medium to another
- 6. Wave do not need matter to transfer energy. waves that don't need matter to transform energy
- 7. the change in direction of a wave when it travels by the edge of an object or through an opening
- 8. Wave energy causes the matter in the medium to move back and forth at right angles to the direction the wave travel
- 9. the transfer of energy by a wave to the medium through which it travels
Down
- 1. Wave need matter to transfer energy
- 2. rythamic disturbances that carry energy without carrying matter
- 3. the wave bonces off a surface
- 4. Wave a mechanical wave in which matter in the medium