Sound Flashcards
0
Q
What are compressions and rarefaction?
A
COMPRESSIONS: When the sound waves squash together.
RAREFACTIONS: When the waves move apart.
1
Q
How does sound travel?
A
Sound travels by AIR PARTICLES colliding with each other and passing the SOUND ENERGY on by causing the particles to VIBRATE MORE (they are ALREADY moving).
2
Q
What is amplitude and frequency?
A
AMPLITUDE: The height of the peak or trough part of the wave. The bigger the height, the louder the sound.
FREQUENCY: The number of waves passing a point every second. The bigger the number, the higher the pitch of the sound.
3
Q
What is the speed of sound?
A
330m per second.
