10 Questions
What happens when rocks are stressed?
Rocks undergo deformation, changing in size or shape.
Which type of stress is similar to pulling on a string from both ends after it is fully extended?
Tensional stress
In which stage of rock deformation is the change reversible?
Elastic deformation
What happens during compressional stress?
Rocks are pressed together.
How does shear stress affect rocks?
Rocks slip in a horizontal direction.
What happens to rocks when they experience ductile deformation?
They can be changed into a new shape and stay that way.
Which of the following materials is ductile like rocks that flow in response to stress?
Clay
How do brittle rocks respond to stress compared to ductile rocks?
Brittle rocks fracture or break under stress.
Why do materials become more brittle at lower temperatures?
Because they lose flexibility and are more prone to breaking.
How does the presence of water affect the brittleness of a rock?
Less water makes the rock more brittle.
Learn about how rocks experience stress and deform as a result. Different types of stress, such as tensional stress, can lead to varied deformations in rocks.
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