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Physics, Science
11th -
12thgrade
Stress and Strain / Solid State Physics
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13 questions
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- Multiple ChoicePlease save your changes before editing any questions.
An object that is deformed by a force and returns to its original form when the force is removed is exhibiting the property of elasticity.
True
False
- Multiple ChoicePlease save your changes before editing any questions.
A nylon string has a diameter of 2 mm, pulled by a force of 100 N. Determine the stress.
2.35 x 107 N/m2
3.15 x 107 N/m2
4.15 x 107 N/m2
- Multiple ChoicePlease save your changes before editing any questions.
A string has a diameter of 1 cm and the original length of 2 m. The string is pulled by a force of 200 N. Determine the change in length of the string. Young’s modulus of the string is 5 x 109 N/m2
0.42 m
0.33 m
0.26 m
0.18 m
- Multiple ChoicePlease save your changes before editing any questions.
Which of these factors does NOT affect the stress of a wire?
diameter
original length
load
cross sectional area
- Multiple ChoicePlease save your changes before editing any questions.
What is the unit for stress?
N/m3
N*m3
N*m2
N/m2
- Multiple ChoicePlease save your changes before editing any questions.
Greater the angle of inclination of the stress strain curve less is the elasticity.
True
False
- Multiple ChoicePlease save your changes before editing any questions.
It is expressed as the ratio of the applied force divided by the resisting area.
elongation
stress
strain
tensile strength
- Multiple ChoicePlease save your changes before editing any questions.
The amount of deformation in the direction of the applied force divided by the initial length of the material.
Stress
Strain
Pascals
Force
- Multiple ChoicePlease save your changes before editing any questions.
What is zone A called?
Plastic zone
Elastic zone
Brittle zone
- Multiple ChoicePlease save your changes before editing any questions.
What is point B called?
Elastic limit
Plastic limit
Fracture point
- Multiple ChoicePlease save your changes before editing any questions.
What kind of behavior is exhibited in point D?
Elastic
Plastic
Brittle
- Multiple ChoicePlease save your changes before editing any questions.
What happens in point E?
Plastic limit
Elastic limit
Brittle failure
- Multiple ChoicePlease save your changes before editing any questions.
In which point is the material permanently deformed but without fracturing?
A
B
C
D