13.2 PITCH AND FREQUENCY Flashcards
1
Q
What does pitch of a sound depend on?
A
Frequency
2
Q
What is the unit for frequency?
A
Hertz (Hz)
3
Q
Does changing the frequency affect the amplitude of a sound?
A
No
4
Q
What is range of hearing also called?
A
Audible range
5
Q
What is an audible range?
A
Any sound outside of an audible range cannot be heard but can be felt if the amplitude is high.
6
Q
What is the audible range of humans?
A
Between 20 Hz to 20,000 Hz
7
Q
Do different animal species have different audible ranges?
A
Yes
8
Q
Why are some animal sounds not able to be heard by humans?
A
The sound an animal makes usually lies within their species’ audible range
9
Q
What is ultrasound?
A
Sound with frequency higher than 20,000 Hz
