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Question (1)

QN0028916

A box is pushed with a force of 40 N to the east, while another force of 25 N acts to the west. What is the net force on the box?

(A) 65 N east
(B) 15 N east
(C) 15 N west
(D) 65 N west

Correct Answer: B

Explanation:

Net force = 40 N − 25 N = 15 N east.

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Question (2)

QN0028917

Which of the following is an example of a non-contact force?

(A) Pulling a rope
(B) Kicking a football
(C) Magnet attracting iron pins
(D) Pushing a table

Correct Answer: C

Explanation:

Magnetic force acts without contact.

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Question (3)

QN0028918

A body experiences an upthrust of 18 N in water and weighs 12 N. What will happen to the body?

(A) It will sink
(B) It will float upward
(C) It will remain weightless
(D) It will disappear

Correct Answer: B

Explanation:

Upthrust is greater than weight.

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Question (4)

QN0028919

Which force mainly helps a person write on paper using a pen?

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

Correct Answer: C

Explanation:

Friction between pen and paper allows writing.

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Question (5)

QN0028920

A spring balance shows a reading of 32 N for a bag. What does this value represent?

(A) Mass of the bag
(B) Density of the bag
(C) Weight of the bag
(D) Volume of the bag

Correct Answer: C

Explanation:

Spring balances measure weight.

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Question (6)

QN0028921

A football at rest starts moving when kicked. Which effect of force is shown here?

(A) Force changes colour
(B) Force changes shape only
(C) Force changes state of motion
(D) Force changes density

Correct Answer: C

Explanation:

Force can set a stationary object into motion.

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Question (7)

QN0028922

A swimmer floats more easily in seawater than in river water because seawater provides —

(A) Less gravity
(B) Greater upthrust
(C) Lower density
(D) No friction

Correct Answer: B

Explanation:

Seawater exerts more buoyant force.

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Question (8)

QN0028923

Two children pull a cart in opposite directions with equal forces. What will be the net force on the cart?

(A) Zero
(B) Double the force
(C) Force toward first child
(D) Force toward second child

Correct Answer: A

Explanation:

Equal opposite forces balance each other.

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Question (9)

QN0028924

Which instrument is used to measure force or weight?

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

Correct Answer: C

Explanation:

Spring balance measures force in newtons.

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Question (10)

QN0028925

A stone tied to a string is rotated in a circle. Which force keeps the stone moving in a circular path?

(A) Frictional force
(B) Muscular force through tension
(C) Electrostatic force
(D) Magnetic force

Correct Answer: B

Explanation:

Tension provides the required turning force.

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Question (1)

A box is pushed with a force of 40 N to the east, while another force of 25 N acts to the west. What is the net force on the box?

Explanation:

Link:

Question (2)

Which of the following is an example of a non-contact force?

Explanation:

Link:

Question (3)

A body experiences an upthrust of 18 N in water and weighs 12 N. What will happen to the body?

Explanation:

Link:

Question (4)

Which force mainly helps a person write on paper using a pen?

Explanation:

Link:

Question (5)

A spring balance shows a reading of 32 N for a bag. What does this value represent?

Explanation:

Link:

Question (6)

A football at rest starts moving when kicked. Which effect of force is shown here?

Explanation:

Link:

Question (7)

A swimmer floats more easily in seawater than in river water because seawater provides —

Explanation:

Link:

Question (8)

Two children pull a cart in opposite directions with equal forces. What will be the net force on the cart?

Explanation:

Link:

Question (9)

Which instrument is used to measure force or weight?

Explanation:

Link:

Question (10)

A stone tied to a string is rotated in a circle. Which force keeps the stone moving in a circular path?

Explanation:

Link:

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