Across
- 3. vibrating objects that are shorter make ... pitched sounds than those that are longer.
- 4. The amplitude is the distance from zero to the ..., or....,of the graph.
- 7. measure the amplitude in...
- 8. A frequency of 500 Hz means that 500 vibrations happen every...
- 9. distance that particles in air will be ... and ...
- 10. way to describe how quiet or loud a sound appears is called...
- 11. how high or low a sound appears on a musical scale is called .....
- 12. The reason that the pitch of the sound from the vibrating ruler changes is because the speed of the....
- 13. musical instrument called a ....
Down
- 1. measured in a unit called hertz or Hz is called....
- 2. compare the frequencies of sound waves of different pitches is called....
- 5. The maximum distance that particles move, either forward or backward....
- 6. he graph shows the distance that the particles move .... and backward with time.
- 7. The horizontal axis of this graph is...
- 8. when the vibrating ruler is moved, the length of the vibrating part is shorter,then what happens is