5.1 Vocab Earthquakes

Question 1

seismology

Answer 1

people who study earthquakes

Question 2

deformation

Answer 2

changes in an object’s shape or form due to the application of a force or forces.

Question 3

elastic rebound

Answer 3

The elastic rebound theory is an explanation for how energy is spread during earthquakes

Question 4

seismic waves

Answer 4

Seismic waves are waves of energy that travel through the Earth’s layers, and are a result of an earthquake, explosion, or a volcano that gives out low-frequency acoustic energy.

Question 5

P waves

Answer 5

P-waves are a type of body wave, called seismic waves in seismology, that travel through a continuum and are the first waves from an earthquake to arrive at a seismograph.

Question 6

S waves

Answer 6

The S-wave moves as a shear or transverse wave, so motion is perpendicular to the direction of wave propagation

Question 7

surface wave

Answer 7

a surface wave is a mechanical wave that propagates along the interface between differing media, usually as a gravity wave between two fluids with different densities

Question 8

plastic deformation

Answer 8

an applied force which the deformation energy in this case is transferred through work