Forces that Shape the Earth

Front

What is a transform fault?

Back

A transform fault is a type of landform created by shearing, where tectonic plates slide horizontally past each other.

Front

What is the definition of stress in geology?

Back

Stress is a force that acts on rock to change its shape or volume.

Front

What is elastic strain?

Back

Elastic strain is a type of strain that is not permanent; the rock returns to its original shape when the stress is removed.

Front

What type of stress is characterized by pulling on the crust and stretching rock?

Back

Tension is the type of stress that pulls on the crust and stretches rock, making it thinner in the middle.

Front

What is compression in geological terms?

Back

Compression is a type of stress that squeezes rock until it folds or breaks.

Front

What are the three main types of stress that affect rocks?

Back

The three main types of stress are tension, compression, and shear.

Front

How does tension affect the Earth's crust?

Back

Tension causes the Earth's crust to stretch and become thinner in the middle.

Front

What is shear stress?

Back

Shear stress is a type of stress that occurs when forces are applied parallel to a surface, causing deformation.

Front

What happens to rocks under compressive stress?

Back

Under compressive stress, rocks may fold or break due to the squeezing forces.

Front

What is the difference between elastic and plastic strain?

Back

Elastic strain is temporary and reversible, while plastic strain is permanent and results in a change in shape.