Across
- 3. something that carriers energy from one place to another
- 7. does not need a medium to travel through
- 9. moves perpendicular to the direction of the wave
- 11. moves parallel to the direction of the wave
Down
- 1. light has a change of direction
- 2. throwing back by a body or surface of light, heat, or sound without absorbing it.
- 4. the high point of a wave
- 5. has to have a medium to travel through
- 6. substance a wave travels through
- 8. number of waves that pass a measurement device in a set amount of time
- 10. distance a wave has traveled before beginning a new cycle
- 12. the distance between the normal/midline and a high/low.