Newton's third law of motion states that:
Difficulty: Hard
About this MCQ
This Hard Everyday Science MCQ checks one syllabus fact. Candidates use it for NTS GAT General, FPSC CSS practice.
The question is: “Newton's third law of motion states that:”
The accepted answer is C. For every action there is an equal and opposite reaction. Newton's third law states that forces always occur in pairs: if body A exerts a force on body B, then B exerts an equal and opposite force on A.
- A. Force equals mass times acceleration
Why not A: That is Newton's second law (F = ma).
- B. An object remains at rest or in uniform motion unless acted upon by a force
Why not B: That is Newton's first law (inertia).
- C. For every action there is an equal and opposite reaction ✓
- D. Energy can neither be created nor destroyed
Why not D: That is the law of conservation of energy, not Newton's third law.
Correct answer
C. For every action there is an equal and opposite reaction
Explanation
Newton's third law states that forces always occur in pairs: if body A exerts a force on body B, then B exerts an equal and opposite force on A.
Source: Classical mechanics — Newton's laws
Tags: Physics
Relevant exams: NTS GAT General, FPSC CSS
Submitted by: MCQsHub Editorial
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