Sound Waves Flashcards
1
Q
What causes sound?
A
Vibration
2
Q
What type of wave is sound?
A
Longitudinal
3
Q
Does sound travel faster in solids liquids or gases?
A
Fastest in solids, slowest in gases
4
Q
Can sound travel in space?
A
No, because sound need particles to exist. In space there is a vacuum.
5
Q
What is an echo?
A
A reflected sound wave
6
Q
What can sound waves do?
A
Reflect or refract
7
Q
The higher the frequency, the higher the…?
A
Pitch.
8
Q
What is unit for frequency?
A
Herz, Hz. Or kHz
9
Q
What is loudness dependant on?
A
Amplitude. Higher amplitude=louder sound
