Sound Flashcards
1
Q
How are sounds made?
A
By something vibrating (moving back and forth)
2
Q
What is the intensity of a sound?
A
How loud or soft a sound is
3
Q
What is the pitch of a sound?
A
How high or low a sound is
4
Q
What is the frequency?
A
The number of vibrations each second
5
Q
What are the units for the frequency?
A
Hertz (Hz)
6
Q
What is the size of a vibration called?
A
Amplitude
7
Q
What can and can’t a sound travel through?
A
It can’t travel through a vacuum (empty space)
It can travel through a solid liquid or gas
8
Q
How is a sound wave formed?
A
From moving vibrations
9
Q
Are vibrations passes more easily through a solid or liquid and why?
A
Solid because the particles are closer togther
10
Q
Why is a sound wave longitudinal?
A
Because the particles vibrate in the same directions the wave is travelling
