Unit 3- Lessons 3 and 4

Front

What are the effects of distance from the epicenter of an earthquake?

Back

The strongest effects are usually felt near the epicenter.

Front

What type of stress occurs at convergent plate boundaries?

Back

Compression.

Front

What is a fault in geology?

Back

A break in a body of rock along which one block slides relative to another.

Front

Why do folded mountain belts form at convergent plate boundaries?

Back

Because rock is compressed and forced upward.

Front

Where is the greatest amount of volcanic activity found?

Back

Near plate boundaries.

Front

What is the epicenter of an earthquake?

Back

The point on the Earth's surface directly above the focus of an earthquake.

Front

What is the focus of an earthquake?

Back

The point within the Earth where an earthquake originates.

Front

What is tension in the context of geological stress?

Back

A force that pulls rocks apart.

Front

What is shear stress?

Back

A force that causes layers of rock to slide past each other.

Front

What happens to rocks at divergent plate boundaries?

Back

Rocks are pulled apart, leading to the formation of new crust.