Quiz: Forces Within Earth

What is stress?

• measure of the deformation of rock

• force per unit area

• speed seismic waves travel

• point at which rocks fail and generate an earthquake

What is strain?

• measure of the deformation of rocks

• force per unit area

• speed seismic waves travel

• point at which rocks fail and generate an earthquake

What happens to a rock that undergoes elastic deformation once the stress is removed?

• The rock undergoes plastic deformation.

• The rock returns to its original shape.

• The rock does not change shape.

• The rock breaks to generate an earthquake.

Which type of fault is shown?

• shear

• strike-slip

• normal

• reverse

Tags

NGSS.HS-ESS1-5

Which type of force caused this fault to form?

• tension

• compression

• shear

• divergent

In what direction is the movement in this type of fault?

• side-to-side

• vertical

• horizontal

• horizontal and vertical

Tags

NGSS.MS-ESS2-2

NGSS.MS-ESS2-3

Causes rock to move both up and down and from side to side.

• surface waves

• primary waves

• secondary waves

• radio waves

Tags

NGSS.HS-ESS1-5

Causes rock to move at right angles to the direction in which the wave travels.

• surface waves

• primary waves

• secondary waves

• radio waves

Squeezes and pulls rock in the same direction as the wave travels.

• surface waves

• primary waves

• secondary waves

• radio waves

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2

Cause the ground to move sideways and up and down like ocean waves.

• surface waves

• primary waves

• secondary waves

• radio waves

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2