8. How does the energy of an earthquake travel through the earth?
a. Seismic waves carry the energy of an earthquake away from the focus, through the earth's interior and across the surface.
b. Seismic waves carry the energy of an earthquake toward from the focus, through the earth's interior and across the surface.
c. During an earthquake, seismic waves move toward the focus and epicenter then move out in all direction.
d. Seismic waves stay in the focus then travel in the earth's interior.
9. Why are there no Por S-waves received in the P-wave shadow zone?
a. P-waves are absorbed, and S-waves are refracted by earth's outer core
b. P-waves are refracted, and S-waves are absorbed by earth's outer core
c. Both the P- and S-waves are refracted by earth's outer core d. Both the P- and S-waves are absorbed by earth's outer core
10. What causes the change in the speed of seismic waves as it travels through the earth?
a. Seismic waves are colliding
b. Waves are traveling to materials of different properties.
c. S waves overtake P waves
d. Waves are passing through materials of same density.
a. Seismic waves carry the energy of an earthquake away from the focus, through the earth's interior and across the surface.
b. Seismic waves carry the energy of an earthquake toward from the focus, through the earth's interior and across the surface.
c. During an earthquake, seismic waves move toward the focus and epicenter then move out in all direction.
d. Seismic waves stay in the focus then travel in the earth's interior.
9. Why are there no Por S-waves received in the P-wave shadow zone?
a. P-waves are absorbed, and S-waves are refracted by earth's outer core
b. P-waves are refracted, and S-waves are absorbed by earth's outer core
c. Both the P- and S-waves are refracted by earth's outer core d. Both the P- and S-waves are absorbed by earth's outer core
10. What causes the change in the speed of seismic waves as it travels through the earth?
a. Seismic waves are colliding
b. Waves are traveling to materials of different properties.
c. S waves overtake P waves
d. Waves are passing through materials of same density.
Add an Answer
More Questions From This User See All
Answers & Comments
Answer:
8.Explain to students that earthquake energy travels in the form of waves. These waves are called seismic or earthquake waves. ... Body waves pass through the interior of the Earth whereas surface waves travel along the Earth's surface.
9.The shadow zone is the area of the earth from angular distances of 104 to 140 degrees from a given earthquake that does not receive any direct P waves. The shadow zone results from S waves being stopped entirely by the liquid core and P waves being bent (refracted) by the liquid core.
10. Seismic Wave Speed
Seismic waves travel fast, on the order of kilometers per second (km/s). ... Temperature tends to lower the speed of seismic waves and pressure tends to increase the speed. Pressure increases with depth in Earth because the weight of the rocks above gets larger with increasing depth.
Keep learning