Earthquakes and Plate Tectonics Quiz

What is the primary cause of most earthquakes?

• Volcanic eruptions

• Movement of Earth's crust produced by plate tectonics

• Human activities

• Weather changes

Tags

NGSS.MS-ESS3-2

What happens along the boundaries of two plates in the Earth's crust?

• Rocks in the crust often resist movement

• Rocks in the crust move freely

• Rocks in the crust melt

• Rocks in the crust disappear

Tags

NGSS.MS-ESS2-3

What is stress in the context of Earth's crust?

• The total force acting on crustal rocks per unit of area

• The movement of tectonic plates

• The melting of rocks

• The formation of mountains

What occurs when the stress overcomes the strength of the rocks?

• Rocks melt

• Movement occurs along fractures in the rocks

• Rocks disappear

• Rocks form new layers

Which of the following is NOT one of the three types of stress studied in this material?

• Compression

• Tension

• Shearing

• Folding

What does the first segment of a stress-strain curve show?

• What happens under conditions in which stress is high

• What happens under conditions in which stress is low

• The point of failure of the material

• The plastic deformation of the material

What is elastic deformation?

• Deformation caused when a material is permanently bent

• Deformation caused when a material is compressed, bent, or stretched and returns to its original shape

• Deformation that occurs at the point of failure

• Deformation that happens under high stress

What is an example of elastic deformation?

• Breaking a rubber band

• Gently pulling on the ends of a rubber band and releasing it

• Bending a metal rod permanently

• Crushing a plastic bottle

What happens to a material under low stress?

• It shows plastic deformation

• It shows elastic deformation

• It fails immediately

• It does not deform at all

What happens to rocks when stress builds up past the elastic limit?

• They undergo elastic deformation.

• They undergo plastic deformation.

• They return to their original shape.

• They break immediately.