Types Of Waves Flashcards
1
Q
Characteristics of primary waves?
A
- move fast
- compress rock in front of them - elongate rock behind them
- move through solids, liquids and air
2
Q
Characteristics of secondary waves?
A
- undulate causing up and down/side to side motion
- only move through solids
3
Q
What waves do more damage?
A
S waves
4
Q
Characteristics of surface waves?(L)
A
- motion restricted to near ground surface
- travel slowly
- arrive last
5
Q
What are the two types of surface (L) waves?
A
Love waves
Rayleigh waves
6
Q
What are love waves?
A
Vibrate at right angles to direction of transmission & no vertical displacement
7
Q
What are Rayleigh waves?
A
Have vertical and horizontal movement in a vertical plane pointing in the direction of the transmitted wave
8
Q
What is the mohorovic discontinuity?(Moho)
A
The boundary between the earths crust and the mantle below
