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chapter6vocabamy
chapter 6 vocab
Question | Answer |
---|---|
plate | a large section of Earth's crust and rigid upper mantle that moves around on the asthenosphere |
fault | surface which rocks move along when they pass their elastic limit and break |
earthquake | vibrations produced by the breaking of rock |
normal fault | rock above the fault surface moves downward |
reverse fault | break in rock caused by compressive forces where rock above the fault moves upward |
strike-slip fault | rocks on eather side of the fault are moving past one another without much upward or downward movement |
wave | rythmic movement that carries energy through matter and space |
seismic wave | wave generated by an earthquake |
focus | place during an earthquake where preasure is released |
primary waves | cause particles in rocks to move back and forth |
secondary wave | move through earth by causing partcles in rocks to move at right angeles |
surface waves | moves rock particles in a backwards rolling motion and a side-to-side, swaying, motion |
epicenter | the point on earths surface directly above the earthquakes focus |
siesmograph | instument used to measure seismic wave |
crest | the highest point in a wavebletuywtgr |
magnitude | emeroi[y76okicx56 l relweade from an eathquak |
liguefaction | when wat sand, i mean soil, acts like a liquid |
tsnumi | hude waves c@used bye earthquak |