waves to explore structure of earth. Flashcards
1
Q
what type of wave is a p-wave?
A
longitudinal.
2
Q
what is the relative speed of a p-wave?
A
faster.
3
Q
what can p-waves travel through?
A
solids and liquids.
4
Q
what type of wave is an s-wave?
A
transverse.
5
Q
what is the relative speed of an s-wave?
A
slower.
6
Q
what can s-waves travel through?
A
solids.
7
Q
how are earthquakes detected?
A
seismometer.
8
Q
on the earth where are s-waves not detected?
A
opposite side of the earth.
9
Q
why can’t s-waves be detected there and what does that indicate?
A
mantle has solid properties but some part of the mantle be a liquid.
10
Q
where and why can’t p-waves be detected?
A
refractions between layers cause 2 shadow zones.
11
Q
what does the size and position of shadow zones in p-waves indicate?
A
solid inner core.
