Chapter 7-2

Question 0

Body waves

Answer 0

“Seismic waves that travel through the body of a planet; e.g. primary or secondary waves.”

Question 1

Amplitude

Answer 1

The height of a wave from the center to the top of the crest

Question 2

Crest

Answer 2

“The highest point of a wave.”

Question 3

Earthquake

Answer 3

Ground shaking caused by the release of energy stored in rocks.

Question 4

Elastic rebound

Answer 4

“How earthquakes are generated. Stresses cause strain to build up in rocks until they can no longer bend elastically and they break, causing an earthquake.”

Question 5

Focus

Answer 5

The point where rocks rupture during an earthquake.

Question 6

Seismology

Answer 6

“The study of seismic waves including earthquakes and the Earth’s interior.”

Question 7

Surface waves

Answer 7

“Seismic waves that travel along the ground surface; they do the most damage.”

Question 8

Trough

Answer 8

The lowest point of a wave

Question 9

Tsunami

Answer 9

“An enormous wave generated by vertical movement of the ocean floor during an underwater earthquake; tsunamis can also be caused by volcanic eruptions, landslides, or meteorite impacts. A deadly set of waves can rise high on a beach and travel far inland.”

Question 10

Wavelength

Answer 10

“Horizontal distance from wave crest to wave crest, or wave trough to wave trough.”