3.3.1.1 - Progressive Waves Flashcards
1
Q
What do progressive waves do?
A
Carry energy from one place to another without transferring any material.
2
Q
Amplitude?
A
Maximum magnitude of displacement from equilibrium position.
3
Q
Frequency?
A
Number of cycles per second passing a given point.
4
Q
Wavelength?
A
The length of one whole wave cycle, from crest to crest or trough to trough.
5
Q
Phase?
A
Measurement of the position of a certain point along the wave cycle.
6
Q
Phase difference?
A
Amount one wave lags behind the other.
7
Q
f =
A
1/t
8
Q
c =
A
d / t or fλ
9
Q
What is one radian?
A
The angle made by an arc equal to the radius of a circle.
10
Q
360 degrees =
A
2π
11
Q
180 degrees =
A
π
12
Q
If you know the angle how can you work out the radian?
A
Divide the angle by 180.
