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science vocab
| Question | Answer |
|---|---|
| Surface along which rocks move when they pass their elastic limit and break. | Fault |
| Vibrations produced when rocks break along fault | Earthquakes |
| Break in rock caused tension forces where rock above the fault surface moves down relative to the rock below the fault surface | Normal Fault |
| Break in rock caused by compressive forces where rock above the fault surface moves upward relative to the rock below the fault surface | Reverse Fault |
| Break in rock caused by snear forces where rocks move past eachother without much vertical movement | Strike-Slip Fault |
| A large section of Earths crust and ridged upper mantle that moves around on the athenosphere | Plate |
| Wave generated by an earthquake | Seismic Wave |
| Seismic wave that moves rock particles back-and-forth in the same direction that the wave travels | Primary Wave |
| Seismic wave that moves rock particles at right angles to the direction of the wave | Secondary Wave |
| Seismic waves that moves particles up and down in a backward rolling motion and side-to-side in a swaying motion | Surface Wave |
| Point on Earths surface directly above an earthquakes focus | Epicenter |
| Instument used to register earthquake waves and record the time that each arrived | Seismograph |
| Rhythmic movement that carries energy through matter and space | Wave |
| The highest point of a wave | Crest |
| Measure of the energy released during an earthquake | Magnitude |
| In an earthquake the point below Earths surface where energy is released in the form of seismic waves | Focus |
| Occurs when wet soil acts more like a liquid during an earthquake | Liquefaction |
| Seismic sea wave that begins over an earthquake focus and can be highly destructive when it crashes on shore | Tsunami |