____ 1. The amount of damage done to structures as a result of an earthquake is the earthquake’s intensity.
____ 2. A seismometer is designed so that its frame vibrates with the movement of the ground.
____ 3. Earth’s lower mantle is probably composed of oxides containing iron, silicon, and magnesium.
____ 4. P-waves are refracted, or bent, by Earth’s outer core.
____ 5. The fact that a significant earthquake has not occurred within a seismic gap indicates that an earthquake is more likely to occur in the near future.
____ 6. Seismic belts are relatively narrow and tend to follow tectonic plate boundaries.
____ 7. From studying seismic waves, scientists have determined that the lithosphere, which includes the crust and top of the upper mantle, is primarily igneous in composition.
____ 8. Most rocks that exist in Earth’s crust are brittle but become ductile at great depths where temperatures are higher, warmer.
____ 9. If three seismic stations receive data from an earthquake, the quake’s location can be computed if P-waves, S-waves, and surface waves have been received.
____ 10. On a seismometer, the suspended mass tends to stay at rest during an earthquake because of inertia.
modified Mercalli scale, tsunami , magnitude, strain, stress, seismic gap, fault, surface wave, P-wave , S-wave, strick slip. fault plane, normal fault
Earth Science Chapter 19 Study Guide
1. ANS: F, intensity
PTS: 1 DIF: B OBJ: 19-3a
2. ANS: T PTS: 1 DIF: B
3. ANS: T PTS: 1 DIF: B
4. ANS: F, P-waves
PTS: 1 DIF: B OBJ: 19-1c
5. ANS: T PTS: 1 DIF: B
6. ANS: T PTS: 1 DIF: B
7. ANS: F, lithosphere
PTS: 1 DIF: B OBJ: 19-2b
8. ANS: F, higher, warmer
PTS: 1 DIF: B OBJ: 19-1a
9. ANS: F, three
PTS: 1 DIF: B OBJ: 19-3b
10. ANS: T PTS: 1 DIF: B