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