15 Questions
What is the main impact of stress on rocks?
Changing size or shape
In tensional stress, how is the rock affected?
Rock is stretched apart
What happens during compressional stress?
Rock is squeezed together
How can shear stress be described?
Rock is being pulled in opposite directions but on different ends
What happens in the first stage of rock deformation?
Reversible change in shape or size
Which analogy best explains elastic deformation?
Stretching an elastic waistband
If a rock experiences shear stress, what type of movement does it undergo?
Horizontal slipping
What is ductile deformation?
When rocks flow in response to stress
How does the text explain the concept of ductility using copper?
Once copper is stretched, it cannot return to its original shape
Which type of rock material is described as less flexible and cracks easily under stress?
Quartz minerals
What role does temperature play in the flexibility of rock materials?
High temperatures make materials more ductile
How does water content affect the brittleness of rocks?
Less water makes rocks more brittle
What happens to wet clay when it is baked in a kiln?
It loses water content and becomes brittle
In what way are rocks similar to silly putty?
Both rocks and silly putty can flow under pressure
'Ductile rock' refers to rocks that:
'Flow' in response to stress
Learn about the stress that rocks experience and how it leads to deformation. Discover the different types of stress, such as tensional stress, and how they affect the shape and size of rocks.
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