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Question (11)

QN0026237

Which quantity is directly proportional to inertia?

(A) Speed
(B) Velocity
(C) Mass
(D) Pressure

Correct Answer: C

Explanation:

Greater mass means greater inertia.

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Question (12)

QN0026238

A hanging lamp remains stationary because:

(A) Gravity disappears
(B) Balanced forces act
(C) Only tension acts
(D) Friction becomes zero

Correct Answer: B

Explanation:

Weight and tension balance each other.

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Question (13)

QN0026239

Friction always acts:

(A) Along motion
(B) Opposite to motion
(C) Vertically upward
(D) Downward only

Correct Answer: B

Explanation:

Friction opposes relative motion.

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Question (14)

QN0026240

A force of 200 N eastward and 200 N westward act together. Resultant force is:

(A) 400 N eastward
(B) 200 N westward
(C) 0 N
(D) 400 N westward

Correct Answer: C

Explanation:

Equal opposite forces balance each other.

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Question (15)

QN0026241

Newton’s Second Law relates force with:

(A) Density and pressure
(B) Momentum and acceleration
(C) Heat and temperature
(D) Mass and volume only

Correct Answer: B

Explanation:

Force is related to rate of change of momentum.

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Question (16)

QN0026242

A loaded truck is harder to stop because it has:

(A) Less mass
(B) More inertia
(C) Less friction
(D) No acceleration

Correct Answer: B

Explanation:

More mass gives greater inertia.

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Question (17)

QN0026243

Which pair represents balanced forces?

(A) 40 N east and 15 N west
(B) 25 N north and 25 N south
(C) 60 N upward and 20 N downward
(D) 50 N right and 10 N left

Correct Answer: B

Explanation:

Balanced forces are equal and opposite.

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Question (18)

QN0026244

A force of 90 N forward acts on a cart while friction of 25 N acts backward. Net force equals:

(A) 115 N forward
(B) 65 N forward
(C) 65 N backward
(D) 115 N backward

Correct Answer: B

Explanation:

Net force = 90 − 25 = 65 N forward.

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Question (19)

QN0026245

Rolling friction is generally:

(A) Greater than sliding friction
(B) Equal to fluid friction
(C) Smaller than sliding friction
(D) Infinite

Correct Answer: C

Explanation:

Rolling friction is least among common frictions.

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Question (20)

QN0026246

Which law explains recoil of a gun?

(A) Newton’s First Law
(B) Newton’s Second Law
(C) Newton’s Third Law
(D) Law of Gravitation

Correct Answer: C

Explanation:

Action and reaction forces cause recoil.

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Question (11)

Which quantity is directly proportional to inertia?

Explanation:

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Question (12)

A hanging lamp remains stationary because:

Explanation:

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Question (13)

Friction always acts:

Explanation:

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Question (14)

A force of 200 N eastward and 200 N westward act together. Resultant force is:

Explanation:

Link:

Question (15)

Newton’s Second Law relates force with:

Explanation:

Link:

Question (16)

A loaded truck is harder to stop because it has:

Explanation:

Link:

Question (17)

Which pair represents balanced forces?

Explanation:

Link:

Question (18)

A force of 90 N forward acts on a cart while friction of 25 N acts backward. Net force equals:

Explanation:

Link:

Question (19)

Rolling friction is generally:

Explanation:

Link:

Question (20)

Which law explains recoil of a gun?

Explanation:

Link:

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