Sound Waves Flashcards
1
Q
What does sound travel as
A
A longitudinal wave
2
Q
What causes sound
A
When an object vibrates
3
Q
Hearing range of a healthy young person
A
20Hz to 20000Hz
4
Q
How can you tell if a pitch is high by sound traces
A
The shorter the wavelength the higher the pitch
5
Q
How can you tell if a sound is loud by the sound traces
A
The taller the wave the louder
6
Q
What unit is used for loudness
A
Decibels
7
Q
What is compression and rarefaction on a tuning fork
A
when the arms spread out it is compression and when the arms are pushed together it is rarefaction
