When a force is applied to a body, several effects are possible. Which one of the following effects could not occur?
Correct answer: D. Mass of body decreases
- A. The body speeds up
- B. The body rotates
- C. The body changes direction
- D. Mass of body decreases
Explanation
The correct answer is that the mass of the body decreases. The mass of a body is an intrinsic property that remains unchanged when a force is applied. Forces can change the speed, cause rotation, or alter the direction of a body's motion, but they do not change mass. Options A, B, and C describe possible effects of force application, such as acceleration, rotation, or direction change, all of which are consistent with the laws of physics.
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About Newton's Laws of Motion
Newton’s laws explain inertia, the relation between net force and acceleration, and action-reaction pairs. Questions involve free-body diagrams, balanced and unbalanced forces, F = ma, force as the rate of change of momentum, and identifying genuine third-law pairs, which act on different bodies.
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