Chapter 10.8- Sound Energy Flashcards
1
Q
Vibrations
A
Repeated fast, back and forth movements.
2
Q
Compression
A
Pushing the process of a material into itself.
3
Q
Rarefactions
A
The layer of air particles that are spread apart.
4
Q
Sound waves
A
Vibrations of particles in the air.
5
Q
Hertz
A
It’s abbreviation is Hz, one hertz is equal to one vibration every second.
6
Q
Pitch
A
The highness or lowness of a sound. The pitch that you hear depends on the frequency of the vibrating air.
7
Q
Wavelength
A
Distance between two neighbouring crests or troughs of a wave. This is the distance between two particles vibrating in step.
8
Q
Amplitude
A
Maximum distance that a particle moves away from its undisturbed position.
9
Q
Reverberation
A
Longer lasting sound caused by repeated reflection from hard surface.
