Any alteration produced in shapes length or volume when a body is subjected to some external force is called____________________?
Correct answer: D. Deformation
- A. Stiffness
- B. Toughness
- C. Extension
- D. Deformation
Explanation
Deformation is any change in a body's shape or dimensions caused by an applied force, including changes in length, area or volume. “Extension” is the likely alternative, but it means only an increase in length, not every possible change of shape or size.
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About Work
Work is done when a force produces displacement, with its value determined by the component of force along the displacement. The topic covers positive, negative and zero work, work by variable forces from force-displacement graphs, and the connection between net work and change in kinetic energy.
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