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Physics, Science
11th -
12thgrade
Stress and Strain / Solid State Physics
13 questions
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- 1. Multiple Choice
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
- 2. Multiple Choice
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
- 3. Multiple Choice
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
- 4. Multiple Choice
Which of these factors does NOT affect the stress of a wire?
diameter
original length
load
cross sectional area
- 5. Multiple Choice
What is the unit for stress?
N/m3
N*m3
N*m2
N/m2
- 6. Multiple Choice
Greater the angle of inclination of the stress strain curve less is the elasticity.
True
False
- 7. Multiple Choice
It is expressed as the ratio of the applied force divided by the resisting area.
elongation
stress
strain
tensile strength
- 8. Multiple Choice
The amount of deformation in the direction of the applied force divided by the initial length of the material.
Stress
Strain
Pascals
Force
- 9. Multiple Choice
What is zone A called?
Plastic zone
Elastic zone
Brittle zone
- 10. Multiple Choice
What is point B called?
Elastic limit
Plastic limit
Fracture point
- 11. Multiple Choice
What kind of behavior is exhibited in point D?
Elastic
Plastic
Brittle
- 12. Multiple Choice
What happens in point E?
Plastic limit
Elastic limit
Brittle failure
- 13. Multiple Choice
In which point is the material permanently deformed but without fracturing?
A
B
C
D
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