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Question (11)

QN003661

A balloon moves forward when air escapes backward because of:

(A) Balanced forces
(B) Newton’s Third Law
(C) Gravitation
(D) Magnetic effect

Correct Answer: B

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Question (12)

QN003662

When we walk, we push the ground:

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

Correct Answer: B

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Question (13)

QN003663

The ground pushes us forward while walking due to:

(A) Action force
(B) Reaction force
(C) Gravity
(D) Buoyancy

Correct Answer: B

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Question (14)

QN003664

A force of 50 N acts on a wall. The wall exerts a reaction force of:

(A) 0 N
(B) 25 N
(C) 50 N opposite direction
(D) 100 N

Correct Answer: C

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Question (15)

QN003665

Which statement is true about action and reaction forces?

(A) They cancel each other on same object
(B) They act on different bodies
(C) They act in same direction
(D) They have different magnitudes

Correct Answer: B

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Question (16)

QN003666

Recoil of a gun demonstrates:

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

Correct Answer: C

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Question (17)

QN003667

A rocket expels gases downward with force 8000 N. The gases push rocket upward with:

(A) 4000 N
(B) 8000 N
(C) 16000 N
(D) 0 N

Correct Answer: B

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Question (18)

QN003668

Which force pair follows Newton’s Third Law?

(A) Force of Earth on apple and apple on Earth
(B) Weight and normal force
(C) Friction and motion
(D) Force and acceleration

Correct Answer: A

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Question (19)

QN003669

While rowing a boat, the oar pushes water backward. Water pushes boat:

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

Correct Answer: C

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Question (20)

QN003670

Newton’s Third Law explains conservation of:

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

Correct Answer: B

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Question (11)

A balloon moves forward when air escapes backward because of:

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Question (12)

When we walk, we push the ground:

Explanation:

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Question (13)

The ground pushes us forward while walking due to:

Explanation:

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Question (14)

A force of 50 N acts on a wall. The wall exerts a reaction force of:

Explanation:

Link:

Question (15)

Which statement is true about action and reaction forces?

Explanation:

Link:

Question (16)

Recoil of a gun demonstrates:

Explanation:

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Question (17)

A rocket expels gases downward with force 8000 N. The gases push rocket upward with:

Explanation:

Link:

Question (18)

Which force pair follows Newton’s Third Law?

Explanation:

Link:

Question (19)

While rowing a boat, the oar pushes water backward. Water pushes boat:

Explanation:

Link:

Question (20)

Newton’s Third Law explains conservation of:

Explanation:

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