Science Vocabulary

3. To bounce off.
5. A repeated back and forth or up and down motion.
6. Measure of wave energy; the distance between a waves' resting point and the top or crest of the wave.
8. A sound or series of sounds caused by the reflection of sound waves from a surface back to the listener.
10. Wave Waves that move the medium parallel to the direction in which the waves travel.
11. The change in direction of a wave due to a change in its medium.
12. Wave A wave that requires a medium in which to travel and carry energy.
15. Doppler Effect An increase (or decrease) in the frequency of sound, light or other waves as the source and observer move toward (or away from) each other.
16. Parts where the waves are spread out.
18. The ability to do work.
20. Distance between 2 crests or troughs.

1. The apparent bending of waves around a small obstacle
2. Material through which waves travel.
4. The lowest point of a transverse wave.
7. The location of objects reflected by sound, in particular that used by animals such as dolphins and bats.
9. Wave A wave that transfers energy perpendicular to its medium. The energy moves one direction while the medium moves at a right angle to it.
13. Parts where the waves are close together.
14. The quality of a sound made by the number of vibrations (the highness or lowness of a sound.)
17. Vibrations that travel through the air or another medium and can be heard when they reach a person's or animal's ear.
19. The highest point of a transverse wave.
20. A disturbance that carries energy through matter or space.