P7: Seismology

Question 1

P wave:
“___”, pressure, primary, ___

Answer 1

push/longitudinal

Question 2

S wave:
“___”, shear, secondary, ___, either horizontal or vertical motion

Answer 2

shake/transverse

Question 3

SH waves are guided along free surface by effect of ___ with depth

Answer 3

increase in velocity

Question 4

P/SV waves are guided by free surface and are dispersive because of ___ layering near surface

Answer 4

velocity

Question 5

liquids do not support ___

Answer 5

shear

Question 6

if wave speed were constant throughout Earth then the ___and ___ routes would coincinde

Answer 6

quickets/shortest

Question 7

Two sources of heat in interiors are ___(accretion process) and ___

Answer 7

formation heat/radioactivity

Question 8

most of Earth’s heat comes from ___ in the mantle

Answer 8

radioactive decay

Question 9

divergent boundaries

Answer 9

mid-ocean ridges

Question 10

convergent boundaries

Answer 10

subduction regions

Question 11

transform boundaries

Answer 11

where plates slide past each other