Sounds Amazing

3. when an object moves back and forth in a repeated motion
5. the time taken for a complete wave to pass a point
7. how many waves or oscillations per second
12. region of a sound wave or wave on longitudinal slinky where the particles (or slinks) are very close together
13. a type of wave in which the oscillations are perpendicular to the direction of travel (direction of energy transfer)
15. a measure of the frequency of a sound, described as high or low
16. a type of wave in which the oscillations are parallel to the direction of travel (direction of energy transfer)
17. transmits energy but not matter, sound and light are examples of this
19. to allow energy (from waves) to pass through
21. the size of a wave, on a graph this is the distance from a peak to the middle of the wave or half the distance between a peak and a trough

1. unit for loudness in sound
2. region of a sound wave or wave on a longitudinal slinky where the particles (or slinks) are very far apart
4. to take in energy (from waves), usually energy turns into heat (thermal)
6. when an object moves back and forth in a repeated motion
8. when a wave returns in the direction that it came from after hitting an object (the energy travels in the opposite direction)
9. the unit of frequency
10. a device that creates sound waves of particular shapes depending on how it is operated
11. the distance between two peaks, two troughs or two compressions on a wave
14. the perceived energy of a sound wave, a measure of the amplitude of the wave measured in decibels
18. a type of longitudinal wave characteristized by particles pa
20. distance / time. In terms of waves it is how far a wave travels in a unit time (usually metres per second)