Sound Flashcards
1
Q
What causes sound? List three answers
A
- Vibrations disturbs air.
- This changes in air pressure
- These changes in air pressure move through the air as sound waves
2
Q
How fast does sound travel at?
A
Roughly 330m|s
3
Q
What is amplitude?
A
On an oscilloscope trace, the loudness of a sound is shown by the height of the wave. This is called amplitude
4
Q
What is the hearing range for humans in HERTZ?
A
20HZ - 20,000HZ
5
Q
How are vibrations made?
A
Vibrations are made by sounds moving back and forth.
