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Question (41)

QN003691

Jumping off a small boat causes the boat to move backward because of:

(A) Newton’s First Law
(B) Newton’s Third Law
(C) Frictional force only
(D) Balanced forces

Correct Answer: B

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Question (42)

QN003692

Which quantity remains equal in action-reaction pair?

(A) Direction
(B) Magnitude of force
(C) Point of application
(D) Velocity

Correct Answer: B

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Question (43)

QN003693

A balloon releases air backward with force 12 N. Balloon moves forward due to reaction force of:

(A) 6 N
(B) 12 N
(C) 24 N
(D) 0 N

Correct Answer: B

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Question (44)

QN003694

Which law explains recoil experienced while firing a cannon?

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

Correct Answer: C

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Question (45)

QN003695

A man pushes a cart with 250 N. The cart exerts on man:

(A) 125 N
(B) 250 N opposite direction
(C) 500 N
(D) 0 N

Correct Answer: B

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Question (46)

QN003696

The force exerted by feet on ground while running is directed:

(A) Forward
(B) Backward
(C) Upward
(D) Downward only

Correct Answer: B

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Question (47)

QN003697

Which pair acts on different bodies?

(A) Weight and friction
(B) Action and reaction forces
(C) Mass and acceleration
(D) Speed and velocity

Correct Answer: B

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Question (48)

QN003698

A helicopter rises because its blades:

(A) Push air downward
(B) Pull air upward
(C) Reduce gravity
(D) Increase inertia

Correct Answer: A

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Question (49)

QN003699

A body exerts 300 N on another body. According to Newton’s Third Law, the second body exerts:

(A) 150 N
(B) 300 N opposite direction
(C) 600 N
(D) 0 N

Correct Answer: B

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Question (50)

QN003700

Newton’s Third Law is applicable to:

(A) Contact forces only
(B) Non-contact forces only
(C) Both contact and non-contact forces
(D) Gravitational force only

Correct Answer: C

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Question (41)

Jumping off a small boat causes the boat to move backward because of:

Explanation:

Link:

Question (42)

Which quantity remains equal in action-reaction pair?

Explanation:

Link:

Question (43)

A balloon releases air backward with force 12 N. Balloon moves forward due to reaction force of:

Explanation:

Link:

Question (44)

Which law explains recoil experienced while firing a cannon?

Explanation:

Link:

Question (45)

A man pushes a cart with 250 N. The cart exerts on man:

Explanation:

Link:

Question (46)

The force exerted by feet on ground while running is directed:

Explanation:

Link:

Question (47)

Which pair acts on different bodies?

Explanation:

Link:

Question (48)

A helicopter rises because its blades:

Explanation:

Link:

Question (49)

A body exerts 300 N on another body. According to Newton’s Third Law, the second body exerts:

Explanation:

Link:

Question (50)

Newton’s Third Law is applicable to:

Explanation:

Link:

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