10 Questions
What happens to rocks under stress?
They deform
Which type of stress is comparable to pulling on a string from both ends after it has been fully extended?
Tensional stress
What type of deformation involves the rock changing size or shape but the change is reversible?
Elastic deformation
In which direction does rock slip under shear stress?
Horizontal direction
How does compressional stress affect rocks?
Presses them together
What does it mean for rocks to experience ductile deformation?
Rocks can be reshaped, but once changed, they stay that way.
How do ductile materials like copper and ductile rocks respond to stress?
They flow in response to stress.
What is the main difference between ductile and brittle rocks?
Ductile rocks flow under pressure, while brittle rocks crack or fracture easily.
How does temperature affect the deformation of rock material?
At high temperatures, rock material becomes more ductile and flows more easily.
Why does the presence of water affect the brittleness of a rock?
Less water makes the rock more brittle and prone to breaking.
Learn about how rocks experience stress and the resulting deformation they undergo. Explore different types of stress such as tensional stress and how they affect rocks.
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