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Question (1)

QN003401

Which of the following can a force do?

(A) Only change the speed of an object
(B) Only change the direction of motion
(C) Change speed, direction, or shape of an object
(D) Only stop a moving object

Correct Answer: C

Explanation:

Force can change motion as well as shape.

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Question (2)

QN003402

The SI unit of force is:

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

Correct Answer: B

Explanation:

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Question (3)

QN003403

Force is a physical quantity that has:

(A) Only magnitude
(B) Only direction
(C) Magnitude and direction
(D) Magnitude, direction, and temperature

Correct Answer: C

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Question (4)

QN003404

A force of 12 N acts towards east and another force of 7 N acts towards west on a box. The net force is:

(A) 19 N east
(B) 19 N west
(C) 5 N east
(D) 5 N west

Correct Answer: C

Explanation:

Opposite forces are subtracted.

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Question (5)

QN003405

Two forces of 15 N and 15 N act on a rope in opposite directions. The net force is:

(A) 30 N
(B) 15 N
(C) 0 N
(D) 7.5 N

Correct Answer: C

Explanation:

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Question (6)

QN003406

Balanced forces are forces that are:

(A) Equal in magnitude and same in direction
(B) Unequal in magnitude and opposite in direction
(C) Equal in magnitude and opposite in direction
(D) Acting at right angles

Correct Answer: C

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Question (7)

QN003407

If the net force acting on an object is zero, the forces are called:

(A) Muscular forces
(B) Contact forces
(C) Balanced forces
(D) Magnetic forces

Correct Answer: C

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Question (8)

QN003408

Two people push a stalled car with forces 120 N and 80 N in the same direction. The net force is:

(A) 40 N
(B) 80 N
(C) 120 N
(D) 200 N

Correct Answer: D

Explanation:

Same direction forces are added.

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Question (9)

QN003409

A spring balance is mainly used to measure:

(A) Temperature
(B) Pressure
(C) Force
(D) Density

Correct Answer: C

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Question (10)

QN003410

Weight of an object is actually:

(A) Magnetic force
(B) Electrostatic force
(C) Frictional force
(D) Gravitational force

Correct Answer: D

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Question (1)

Which of the following can a force do?

Explanation:

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Question (2)

The SI unit of force is:

Explanation:

Link:

Question (3)

Force is a physical quantity that has:

Explanation:

Link:

Question (4)

A force of 12 N acts towards east and another force of 7 N acts towards west on a box. The net force is:

Explanation:

Link:

Question (5)

Two forces of 15 N and 15 N act on a rope in opposite directions. The net force is:

Explanation:

Link:

Question (6)

Balanced forces are forces that are:

Explanation:

Link:

Question (7)

If the net force acting on an object is zero, the forces are called:

Explanation:

Link:

Question (8)

Two people push a stalled car with forces 120 N and 80 N in the same direction. The net force is:

Explanation:

Link:

Question (9)

A spring balance is mainly used to measure:

Explanation:

Link:

Question (10)

Weight of an object is actually:

Explanation:

Link:

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