Waves Flashcards
1
Q
Wave def
A
A wave transfers energy without transferring matter
2
Q
Frequency def
A
How many waves there are per second
3
Q
What units are frequency measured in
A
Hz
4
Q
Transverse - direction
A
Oscillations are perpendicular to the wave direction
5
Q
Longitudes - direction
A
Oscillations are parallel to the wave direction
6
Q
Eg transverse
A
Visible light
Em
7
Q
Eg longitudal
A
Sound
Seismic
8
Q
Increased density =
A
Decrease in speed
9
Q
Decreased density =
A
Increase in speed
10
Q
Refraction happens when…
A
The wave changes from one medium to another
11
Q
3 changes in refraction
A
Density
Speed
Direction
12
Q
Speed of light
A
300 000 000m/s
13
Q
Speed of sound
A
343 m/s
14
Q
What types of waves are water waves
A
Seismic waves - transverse
15
Q
Amplitude def
A
From the middle to the top / bottom of wave
