
1.5 Solids under stress - Rubber
Authored by Rhodri Llwyd
Physics
University
Used 2+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does the gradient of the stress-strain graph represent?
Load on the material
Energy per unit volume
Stiffness of the material
Elasticity of the material
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the structure of natural rubber like?
Long chain molecules with occasional cross-linking
Short chain molecules with no cross-linking
Spherical molecules with no cross-linking
Randomly arranged molecules
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the difference between a force-extension graph and a stress-strain graph for the same material?
Different values and units on the axes
Different shapes of the curves
Different colors of the lines
Different scales on the axes
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What happens to the stiffness of rubber as it is stretched?
Gradually increases
Gradually decreases
Fluctuates randomly
Remains constant
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the term used to describe the behavior of a stress-strain graph when a load is removed?
Hysteresis
Elasticity
Plasticity
Viscosity
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does the shaded area in the stress-strain graph represent?
Stiffness of the material
Elasticity of the material
Energy per unit volume
Load on the material
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What effect does hysteresis have on rubber?
Causes material to become more elastic
Transfers energy to its molecules, resulting in heating
Reduces energy absorption
Increases material rigidity
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