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Question (21)

QN003571

A car moving at constant speed on a straight road demonstrates:

(A) Newton’s First Law
(B) Newton’s Third Law
(C) Universal Gravitation
(D) Archimedes’ Principle

Correct Answer: A

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Question (22)

QN003572

If no external force acts on an object, it will:

(A) Stop automatically
(B) Change direction
(C) Continue in same state of motion
(D) Accelerate continuously

Correct Answer: C

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Question (23)

QN003573

A person standing in a bus falls backward when the bus suddenly starts because:

(A) Inertia of motion
(B) Inertia of rest
(C) Friction disappears
(D) Gravity increases

Correct Answer: B

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Question (24)

QN003574

Which quantity is directly related to inertia?

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

Correct Answer: C

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Question (25)

QN003575

A hockey puck slides longer on ice because:

(A) Friction is very high
(B) Friction is very low
(C) Gravity is absent
(D) Air pressure is high

Correct Answer: B

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Question (26)

QN003576

A force of 45 N eastward and 45 N westward act simultaneously on a body. Resultant force is:

(A) 90 N eastward
(B) 45 N westward
(C) 0 N
(D) 90 N westward

Correct Answer: C

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Question (27)

QN003577

Which of the following best shows inertia of rest?

(A) Fruits falling from tree
(B) Person jumping from boat
(C) Dust leaving carpet when beaten
(D) Car accelerating uphill

Correct Answer: C

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Question (28)

QN003578

The SI unit of inertia is:

(A) Newton
(B) Joule
(C) No separate SI unit
(D) Pascal

Correct Answer: C

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Question (29)

QN003579

A force is required to change the state of motion of an object because of:

(A) Friction
(B) Gravity
(C) Inertia
(D) Pressure

Correct Answer: C

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Question (30)

QN003580

When a bus takes a sharp turn, passengers tilt sideways due to:

(A) Inertia
(B) Friction
(C) Magnetic force
(D) Electrostatic force

Correct Answer: A

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Question (21)

A car moving at constant speed on a straight road demonstrates:

Explanation:

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Question (22)

If no external force acts on an object, it will:

Explanation:

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Question (23)

A person standing in a bus falls backward when the bus suddenly starts because:

Explanation:

Link:

Question (24)

Which quantity is directly related to inertia?

Explanation:

Link:

Question (25)

A hockey puck slides longer on ice because:

Explanation:

Link:

Question (26)

A force of 45 N eastward and 45 N westward act simultaneously on a body. Resultant force is:

Explanation:

Link:

Question (27)

Which of the following best shows inertia of rest?

Explanation:

Link:

Question (28)

The SI unit of inertia is:

Explanation:

Link:

Question (29)

A force is required to change the state of motion of an object because of:

Explanation:

Link:

Question (30)

When a bus takes a sharp turn, passengers tilt sideways due to:

Explanation:

Link:

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