[physics] waves Flashcards
1
Q
amplitude
A
maximum displacement of a point from its rest position
2
Q
unit for amplitude and symbol
A
m, A
3
Q
wavelength
A
shortest distance between any 2 points of a wave which are in phase
4
Q
unit for wavelength and symbol
A
m, 入
5
Q
period
A
time taken to produce one complete wave
6
Q
symbol and unit for period
A
T, s
7
Q
frequency
A
number of complete waves produced per unit time
8
Q
unit and symbol for frequency
A
Hz, f
9
Q
wave speed
A
distance travelled by the wave per unit time
10
Q
unit and symbol for wave speed
A
ms-1, v
11
Q
what are the things in common for waves that are in phase
A
- direction
- speed
- displacement
12
Q
source dependent things
A
- amplitude
- wavelength
- period
- frequency
13
Q
medium dependent things
A
- wavelength
- wave speed
14
Q
wavefront
A
an imaginary line on a wave that joins all adjacent points that are in phase
15
Q
what does displacement distance graph give you
A
- wavelength
- amplitude
