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Questions

Question (1)

QN003601

Newton’s Second Law of Motion states that the rate of change of momentum of an object is proportional to:

(A) Velocity
(B) Mass
(C) Applied force
(D) Distance

Correct Answer: C

Explanation:

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Question (2)

QN003602

The SI unit of force is:

(A) Joule
(B) Newton
(C) Pascal
(D) Dyne

Correct Answer: B

Explanation:

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Question (3)

QN003603

According to Newton’s Second Law, force is equal to:

(A) Mass × Velocity
(B) Mass × Acceleration
(C) Mass ÷ Acceleration
(D) Velocity × Time

Correct Answer: B

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Question (4)

QN003604

A force of 20 N acts on a body of mass 5 kg. The acceleration produced is:

(A) 2 m/s²
(B) 4 m/s²
(C) 10 m/s²
(D) 25 m/s²

Correct Answer: B

Explanation:

Use F = ma

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Question (5)

QN003605

If the mass of an object doubles and the same force acts on it, acceleration becomes:

(A) Double
(B) Half
(C) Four times
(D) Unchanged

Correct Answer: B

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Question (6)

QN003606

Momentum is defined as:

(A) Mass × Acceleration
(B) Force × Time
(C) Mass × Velocity
(D) Velocity ÷ Mass

Correct Answer: C

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Question (7)

QN003607

The SI unit of momentum is:

(A) kg m/s
(B) Newton
(C) m/s²
(D) Joule

Correct Answer: A

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Question (8)

QN003608

A force of 36 N acts on a 12 kg object. Acceleration produced is:

(A) 2 m/s²
(B) 3 m/s²
(C) 4 m/s²
(D) 6 m/s²

Correct Answer: B

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Question (9)

QN003609

Newton’s Second Law gives the quantitative definition of:

(A) Energy
(B) Work
(C) Force
(D) Power

Correct Answer: C

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Question (10)

QN003610

A body of mass 8 kg accelerates at 5 m/s². The force acting is:

(A) 13 N
(B) 40 N
(C) 45 N
(D) 80 N

Correct Answer: B

Explanation:

F = 8 × 5

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