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How many types of waves do earthquakes produce?
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Which waves move out from the focus and move the fastest?
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Earthquakes geofest5
| Question | Answer |
|---|---|
| How many types of waves do earthquakes produce? | 3 |
| Which waves move out from the focus and move the fastest? | P-Primary Waves |
| Which type of wave can move only through solids? | S-Secondary Waves |
| P waves can move through _______ and ________. | solids and liquids |
| Push and pull rock creating a back-and-forth motion in the direction the wave is moving (longitudinal wave) | P-waves |
| What types of waves form when P and S waves reach the surface? · | Surface Waves |
| Which waves move out from the earthquake focus and move slower than primary waves? | S waves |
| __________ ___________ can cause the ground to shake making rock sway from side to side and roll like an ocean wave | surface waves |
| Which type of wave Move at right angles to primary waves causing rocks to move up and down and side to side (transverse wave) | s waves |
| Scientists use the principle that the speed and direction of a seismic wave depends on | the material it travels through. |
| Because of the behavior of these different waves, scientists have indirect evidence for ____________________. | the solid inner core and liquid outer core of Earth |
| because earthquake waves travel faster through the mantle than through the crust, scientists know that the | mantle is denser than the crust. |
| The movement of materials in the outer core of Earth is inferred to be the cause of Earth’s | magnetic field. |
| The epicenter is the point on Earth’s surface directly above _____________________________. | where the energy is released in an earthquake. |
| The energy spreads outward in all directions as vibrations called | seismic waves. |
| Seismic waves can be measured and recorded by a | seismograph. |
| The vibration record, called a _______, looks like jagged lines on paper. | seismogram |
| Measuring the time between the arrival of the P and S waves determines ___________________. | the distance between the recording seismograph and the earthquake epicenter. |
| _____________ identifies the epicenter of an earthquake. The location of an earthquake’s epicenter is found by plotting circles on a map from the records of three seismograph stations and finding the point where the three circles intersect. | Triangulation |
Created by:
dalmueller