MCQ Collection
GAT Subject Physics MCQs
Practice GAT Subject Physics questions with answers and explanations.
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Correct Answer: D. 20 N
Explanation:
Newton's second law gives F=ma.
F=5×4 = 20 N.
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Correct Answer: A. Motion under the influence of gravity alone
Explanation:
In ideal free fall, air resistance is neglected.
All objects then have the same gravitational acceleration locally.
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Correct Answer: A. 5 m/s²
Explanation:
Acceleration is net force divided by mass.
A=30/6 = 5 m/s².
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Correct Answer: B. 12 m/s
Explanation:
Average speed equals distance divided by time.
120/10 = 12 m/s.
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Correct Answer: C. 3 m/s
Explanation:
Displacement is 14-2 = 12 m.
Average velocity is 12/4 = 3 m/s.
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Correct Answer: D. 5 m/s
Explanation:
Average speed uses total distance.
400/80 = 5 m/s.
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Correct Answer: A. Constant acceleration
Explanation:
Uniform acceleration means velocity changes by equal amounts in equal times.
The standard kinematic equations apply.
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Correct Answer: B. The tendency of an object to resist changes in its motion
Explanation:
Inertia is related to mass.
Greater mass means greater resistance to acceleration.
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Correct Answer: C. An object remains at rest or in uniform motion unless acted on by a net force
Explanation:
The first law describes inertia.
A net external force is required to change velocity.
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Correct Answer: D. Net force equals rate of change of momentum
Explanation:
For constant mass, Newton's second law becomes F=ma.
It links net force to acceleration.
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Correct Answer: A. For every action force, there is an equal and opposite reaction force
Explanation:
Interaction forces occur in pairs on different bodies.
They are equal in magnitude and opposite in direction.
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Correct Answer: B. The gravitational force acting on a mass
Explanation:
Weight depends on gravitational field strength.
Mass remains constant while weight may change with location.