Sound Flashcards
(8 cards)
1
Q
What is sound
A
A form of energy that is transferred from one point to another as a longitudinal wave
2
Q
Compressions
A
Region where air pressure is higher than surrounding
3
Q
Rarefactions
A
Region where air pressure is lower than surrounding
4
Q
Echo
A
The repetition of a sound due to the reflection of sound
5
Q
Range of audible sound
A
20Hz to 20 000Hz
6
Q
Ultrasound
A
Ultra-sound is a sound wave that has a frequency of more than 20 kHz.
7
Q
Higher frequency
A
Higher pitch
8
Q
Larger the amplitude
A
Louder the sound
