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Question (11)

QN003411

If a force of 25 N acts rightward and another force of 40 N acts leftward, the net force will be:

(A) 65 N rightward
(B) 15 N leftward
(C) 15 N rightward
(D) 65 N leftward

Correct Answer: B

Explanation:

Net force acts towards larger force.

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Question (12)

QN003412

A box remains at rest when pushed lightly because:

(A) No force acts on it
(B) Friction balances the applied force
(C) Gravity disappears
(D) Air pressure stops it

Correct Answer: B

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Question (13)

QN003413

Friction acts:

(A) In the direction of motion
(B) Opposite to the direction of motion
(C) Upward only
(D) Downward only

Correct Answer: B

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Question (14)

QN003414

A force of 18 N acts eastward while another force of 10 N acts eastward on the same object. The net force is:

(A) 8 N eastward
(B) 28 N eastward
(C) 18 N westward
(D) 10 N eastward

Correct Answer: B

Explanation:

Forces in same direction are added.

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Question (15)

QN003415

Which statement correctly defines one newton?

(A) Force needed to move 1 kg object by 1 m
(B) Force producing acceleration of 1 m/s² in 1 kg mass
(C) Force needed to stop a moving body
(D) Force equal to weight of 1 kg body

Correct Answer: B

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Question (16)

QN003416

A ball floating on water experiences:

(A) Only gravitational force
(B) Only buoyant force
(C) Balanced gravitational and buoyant forces
(D) No force at all

Correct Answer: C

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Question (17)

QN003417

In a tug of war, the rope moves towards the team applying:

(A) Smaller force
(B) Equal force
(C) Larger force
(D) Zero force

Correct Answer: C

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Question (18)

QN003418

Two forces 50 N and 35 N act opposite to each other. Net force equals:

(A) 85 N
(B) 15 N
(C) 50 N
(D) 35 N

Correct Answer: B

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Question (19)

QN003419

Which instrument can measure even the pulling force applied by hand?

(A) Thermometer
(B) Ammeter
(C) Spring balance
(D) Barometer

Correct Answer: C

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Question (20)

QN003420

A force changes its effect if:

(A) Only magnitude changes
(B) Only direction changes
(C) Both magnitude and direction remain fixed
(D) Magnitude and/or direction changes

Correct Answer: D

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Question (11)

If a force of 25 N acts rightward and another force of 40 N acts leftward, the net force will be:

Explanation:

Link:

Question (12)

A box remains at rest when pushed lightly because:

Explanation:

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Question (13)

Friction acts:

Explanation:

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Question (14)

A force of 18 N acts eastward while another force of 10 N acts eastward on the same object. The net force is:

Explanation:

Link:

Question (15)

Which statement correctly defines one newton?

Explanation:

Link:

Question (16)

A ball floating on water experiences:

Explanation:

Link:

Question (17)

In a tug of war, the rope moves towards the team applying:

Explanation:

Link:

Question (18)

Two forces 50 N and 35 N act opposite to each other. Net force equals:

Explanation:

Link:

Question (19)

Which instrument can measure even the pulling force applied by hand?

Explanation:

Link:

Question (20)

A force changes its effect if:

Explanation:

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