Newton's third law of motion states that:
Difficulty: Hard
About this MCQ
This Hard Everyday Science question asks: Newton's third law of motion states that: The correct choice is C. For every action there is an equal and opposite reaction. Read the options below, commit to one, then use the explanation to see why that choice holds and why the others do not.
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- 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
For every action there is an equal and opposite reaction (option C) is the accepted answer to “Newton's third law of motion states that:”. Option A (Force equals mass times acceleration) is wrong: That is Newton's second law (F = ma). Option B (An object remains at rest or in uniform motion unless acted upon by a force) is wrong: That is Newton's first law (inertia). Option D (Energy can neither be created nor destroyed) is wrong: That is the law of conservation of energy, not Newton's third law. Keep For every action there is an equal and opposite reaction as the Everyday Science fact for this stem.
Source: Classical mechanics — Newton's laws
Tags: Physics
Relevant exams: NTS GAT General, FPSC CSS
Submitted by: MCQsHub Editorial