1. Science Vocabulary
3 Week 3

2. amplitude
The distance the particles in a wave move away from their rest positions.

3. constructive interference
Any interference in which waves combine so that the resulting wave is bigger than the original wave

4. destructive interference
Any interference in which waves combine so that the resulting wave is smaller than the largest of the original waves

5. diffraction
The bending of waves as they pass through an opening or around the edge of an object.

6. longitudinal wave    
the particles of the medium vibrate back and forth along the path that the wave follows

7. reflection
The bouncing back or change in direction of a wave after it strikes a barrier or an object. This may also be called an echo.

8. refraction
The bending of waves(light or sound) when passing from one medium to another.

9. seismic waves
waves generated by an earthquake that travel through Earth or along its surface

10. standing wave   
a pattern of vibration that simulates a wave that is standing still

11. transverse wave
Waves that moves at right angles to the direction in which the waves are traveling. Example: When you make a wave on a rope

12. wave speed
The speed at which a wave passes through a medium.

13. wavelength
The distance between one crest or peak of a sound wave and the next crest or peak.

14. rarefaction
The part of a longitudinal wave where the particles of the medium are far apart.

15. medium
The matter through which a wave travels.

16. compression
The area where particles or air are pushed closer together as a result of being near something that is vibrating.