Podcast
Questions and Answers
What property did Robert Hooke notice when studying springs and elasticity?
What property did Robert Hooke notice when studying springs and elasticity?
- Non-linear relationship between force and material extension
- Linear relationship between force and material extension (correct)
- No relationship between force and material extension
- Constant force for any material extension
In Hooke's Law, what is the strain of the material proportional to?
In Hooke's Law, what is the strain of the material proportional to?
- Material density
- Temperature
- Material volume
- Applied stress (correct)
When elastic materials are stretched and stress is applied, what happens to the atoms and molecules?
When elastic materials are stretched and stress is applied, what happens to the atoms and molecules?
- They break apart
- They remain unchanged
- They shrink in size
- They deform until stress is applied, then return to initial state (correct)
What did Robert Hooke study that led to the formulation of Hooke's Law?
What did Robert Hooke study that led to the formulation of Hooke's Law?
Within which limit of a material does Hooke's Law state the strain is proportional to applied stress?
Within which limit of a material does Hooke's Law state the strain is proportional to applied stress?
In the study of stress-strain behavior, what region exhibits a linear relationship between force and material extension?
In the study of stress-strain behavior, what region exhibits a linear relationship between force and material extension?
Which type of stress results in shortening or flattening?
Which type of stress results in shortening or flattening?
Which type of strain occurs when a rock bends but doesn’t break?
Which type of strain occurs when a rock bends but doesn’t break?
What type of rocks are most likely to undergo brittle deformation?
What type of rocks are most likely to undergo brittle deformation?
Which type of stress results in stretching and elongation?
Which type of stress results in stretching and elongation?
Which type of stress results in a sort of smearing?
Which type of stress results in a sort of smearing?
Which type of deformation results in permanent deformation without fracture?
Which type of deformation results in permanent deformation without fracture?
What is the term for force per unit area in the context of stress?
What is the term for force per unit area in the context of stress?
What is the maximum amount of stress a material can withstand before deforming permanently called?
What is the maximum amount of stress a material can withstand before deforming permanently called?
Which type of rocks are likely to undergo plastic deformation?
Which type of rocks are likely to undergo plastic deformation?
Under what conditions does elastic strain occur?
Under what conditions does elastic strain occur?
What influences how a rock mass accommodates strain?
What influences how a rock mass accommodates strain?
In stress-strain behavior, which response involves the fracturing of a rock in response to stress with little or no permanent deformation?
In stress-strain behavior, which response involves the fracturing of a rock in response to stress with little or no permanent deformation?
What does stress refer to in rock mechanics?
What does stress refer to in rock mechanics?
What is the primary reason for mapping peak stress values in rock engineering?
What is the primary reason for mapping peak stress values in rock engineering?
How do rocks destress themselves according to the text?
How do rocks destress themselves according to the text?
What is strain in rock mechanics?
What is strain in rock mechanics?
In engineering, what does failure mean for rocks?
In engineering, what does failure mean for rocks?
What is one way rocks can destress themselves according to the text?
What is one way rocks can destress themselves according to the text?
What type of stress is due to the effect of gravity on the overburden?
What type of stress is due to the effect of gravity on the overburden?
Which factor controls the behavior of rocks under tectonic stress, causing them to undergo plastic/ductile deformation?
Which factor controls the behavior of rocks under tectonic stress, causing them to undergo plastic/ductile deformation?
What type of deformation occurs in rocks under low temperature and pressure when subjected to tectonic stress?
What type of deformation occurs in rocks under low temperature and pressure when subjected to tectonic stress?
Under what condition do rocks tend to undergo permanent plastic/ductile deformation?
Under what condition do rocks tend to undergo permanent plastic/ductile deformation?
What type of stress is due to previous or present-day straining in the earth's crust?
What type of stress is due to previous or present-day straining in the earth's crust?
Which factor is more likely to result in permanent deformation when tectonic stresses are applied over a long period of time?
Which factor is more likely to result in permanent deformation when tectonic stresses are applied over a long period of time?
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