Podcast
Questions and Answers
What determines how a body changes shape or size when external forces act on it?
What determines how a body changes shape or size when external forces act on it?
- Intermolecular forces
- Stress
- Plasticity
- Elasticity (correct)
Which type of stress is defined as the restoring force per unit area perpendicular to the body’s surface?
Which type of stress is defined as the restoring force per unit area perpendicular to the body’s surface?
- Elastic stress
- Compressive stress
- Tensile stress
- Normal stress (correct)
Which type of body returns to its original configuration immediately and completely after a deforming force is removed?
Which type of body returns to its original configuration immediately and completely after a deforming force is removed?
- Plastic body
- Flexible body
- Inelastic body
- Elastic body (correct)
What are the forces between a body’s atoms or molecules that determine how it changes shape or size?
What are the forces between a body’s atoms or molecules that determine how it changes shape or size?
What is the inability of a body to return to its original size and shape after a deforming force is removed?
What is the inability of a body to return to its original size and shape after a deforming force is removed?
Which materials are given as examples of nearly elastic materials?
Which materials are given as examples of nearly elastic materials?
What is defined as the ratio of the internal force produced when a substance is deformed to the area over which this force acts?
What is defined as the ratio of the internal force produced when a substance is deformed to the area over which this force acts?
What are intermolecular forces?
What are intermolecular forces?
What type of forces are atomic forces with a short range?
What type of forces are atomic forces with a short range?
What does plasticity refer to in terms of a body's response to external forces?
What does plasticity refer to in terms of a body's response to external forces?
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