waves x Flashcards
1
Q
what do all waves do
A
transport energy
2
Q
what is sound
A
a type of wave
3
Q
what is amplitude
A
the height of the wave from centre line
4
Q
what does more energy equal
A
greater amplitude
5
Q
what is wave length
A
length between two peaks or troughs
6
Q
what is wave length measured in
A
metres
7
Q
what is frequency
A
number of peaks that pass a point per second
8
Q
what is frequency measured in
A
hertz Hz
9
Q
what is a peak
A
the top of a wave above the centre line
10
Q
what is a trough
A
the bottom of a wave below the centre line
11
Q
what is the frequency of sound
A
it’s pitch
12
Q
what is the amplitude of a sound
A
how loud it is
13
Q
what is the highest frequency the human ear can hear
A
20,000Hz
14
Q
what is the lowest frequency the human ear can hear
A
20Hz
15
Q
what is a high frequency called
A
ultrasound
