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Question (1)

QN0035097

Directions: Read the statements carefully and answer the question on the basis of following options.
Statement I : Mass is a measure of inertia of the body.
Statement II : Greater the mass, greater is the force required to change its state of rest or of uniform motion.

(A)
Both statement I and II are correct.
(B)
Both statement I and II are incorrect.
(C)
Statement I is correct but statement II is incorrect.
(D)
Statement II is correct but statement I is incorrect.

Correct Answer: C

Explanation:

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Question (2)

QN0035098

Directions: Read the statements carefully and answer the question on the basis of following options.
Statement I : If the net external force on the body is zero, then its acceleration is zero.
Statement II : Acceleration does not depend on force.

(A)
Both statement I and II are correct.
(B)
Both statement I and II are incorrect.
(C)
Statement I is correct but statement II is incorrect.
(D)
Statement II is correct but statement I is incorrect.

Correct Answer: B

Explanation:

According to Newton's second law of motion

i.e. magnitude of the acceleration produced by a given force is inversely proportional to the mass of the body. Higher is the mass of the body, lesser will be the acceleration produced i.e. mass of the body is a measure of the opposition offered by the body to change a state, when the force is applied i.e. mass of a body is the measure of its inertia.

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Question (3)

QN0035099

Directions: Read the statements carefully and answer the question on the basis of following options.
Statement I : Static friction is self adjusting force.
Statement II : Friction does not depend on the mass of the body.

(A)
Both statement I and II are correct.
(B)
Both statement I and II are incorrect.
(C)
Statement I is correct but statement II is incorrect.
(D)
Statement II is correct but statement I is incorrect.

Correct Answer: D

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Question (4)

QN0035100

Directions: Read the statements carefully and answer the question on the basis of following options.
Statement I : A cricketer moves his hands forward to catch a ball so as to catch it easily without hurting.
Statement II : He tries to decrease the distance travelled by the ball so that it hurts less.

(A)
Both statement I and II are correct.
(B)
Both statement I and II are incorrect.
(C)
Statement I is correct but statement II is incorrect.
(D)
Statement II is correct but statement I is incorrect.

Correct Answer: D

Explanation:

A cricket player moves his hands backward to increase the time interval for reducing the momentum of the ball to zero. Thus the ball does not hit him hard as force is directly proportional to change of momentum.

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Question (5)

QN0035101

Directions: Read the statements carefully and answer the question on the basis of following options.
Statement I : Same force applied for the same time causes the same change in momentum for different bodies.
Statement II : The total momentum of an isolated system of interacting bodies remains conserved

(A)
Both statement I and II are correct.
(B)
Statement I is correct but statement II is incorrect.
(C)
Statement I is correct but statement II is incorrect.
(D)
Statement II is correct but statement I is incorrect.

Correct Answer: B

Explanation:

According to 2nd law of motion;

Thus the same force for the same time causes the same change in momentum for different bodies.

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Question (6)

QN0035102

Consider the following statements and select the incorrect statement(s).
I. To move a football at rest, some one must kick it.
II. To throw a stone upwards, one has to give it an upward push.
III. A breeze causes the branches of a tree to become stationary.
IV. A strong wind can move even heavy objects.

(A)
Only I
(B)
Only III
(C)
III and IV
(D)
I and II

Correct Answer: B

Explanation:

A breeze causes branches of tree to swing. In general force is required to put a stationary object in motion.

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Question (7)

QN0035103

Select the incorrect statement(s) about static friction.
I. Static friction exists on its own.
II. In the absence of applied force static friction is maximum.
III. Static friction is equal and opposite to the applied force upto a certain limit.
IV. Static friction is greater than limiting friction

(A)
I and IV
(B)
II and III
(C)
I and III
(D)
I and II

Correct Answer: D

Explanation:

The static friction comes into play, the moment there is an applied force. As the applied force increases, static friction also increases, remaining equal and opposite to the applied force upto a certain limit. But if the applied force increases so much, it overcomes the static friction and the body starts moving.

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Question (8)

QN0035104

Select the incorrect statement(s) from the following.
I. Limiting friction is always greater than the kinetic friction.
II. Limiting friction is always less than the static friction.
III. Coefficient of static fiction is always greater than the coefficient of kinetic fiction.
IV. Force of static friction is zero when no driving force is applied.

(A)
I only
(B)
I and III
(C)
II and III
(D)
I, II and IV

Correct Answer: C

Explanation:

Limiting friction is the maximum static friction beyond which the object starts moving. It decreases a little bit before the object comes into motion. Thus limiting friction is less than the kinetic friction

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Question (9)

QN0035105

Which of the following statements is/are correct ?
I. Newton's first law of motion defines force.
II. Newton's second law of motion defines inertia.
III. Newton's third law of motion is a measure of force.
IV. Newton's second law of motion is called real law of motion.

(A)
I and IV
(B)
II and III
(C)
I and III
(D)
I and II

Correct Answer: A

Explanation:

Newton's 2nd law of motion gives . Thus it is a measure of force. Newton's first law of motion simply gives a qualitative definition of force.

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Question (1)

Directions: Read the statements carefully and answer the question on the basis of following options.
Statement I : Mass is a measure of inertia of the body.
Statement II : Greater the mass, greater is the force required to change its state of rest or of uniform motion.

Explanation:

Link:

Question (2)

Directions: Read the statements carefully and answer the question on the basis of following options.
Statement I : If the net external force on the body is zero, then its acceleration is zero.
Statement II : Acceleration does not depend on force.

Explanation:

Link:

Question (3)

Directions: Read the statements carefully and answer the question on the basis of following options.
Statement I : Static friction is self adjusting force.
Statement II : Friction does not depend on the mass of the body.

Explanation:

Link:

Question (4)

Explanation:

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Question (5)

Explanation:

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Question (6)

Explanation:

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Question (7)

Select the incorrect statement(s) about static friction.
I. Static friction exists on its own.
II. In the absence of applied force static friction is maximum.
III. Static friction is equal and opposite to the applied force upto a certain limit.
IV. Static friction is greater than limiting friction

Explanation:

Link:

Question (8)

Explanation:

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Question (9)

Which of the following statements is/are correct ?
I. Newton's first law of motion defines force.
II. Newton's second law of motion defines inertia.
III. Newton's third law of motion is a measure of force.
IV. Newton's second law of motion is called real law of motion.

Explanation:

Link:

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Question (1)

Directions: Read the statements carefully and answer the question on the basis of following options.Statement I : Mass is a measure of inertia of the body. Statement II : Greater the mass, greater is the force required to change its state of rest or of uniform motion.

Explanation:

Link:

Question (2)

Directions: Read the statements carefully and answer the question on the basis of following options.Statement I : If the net external force on the body is zero, then its acceleration is zero.Statement II : Acceleration does not depend on force.

Explanation:

Link:

Question (3)

Directions: Read the statements carefully and answer the question on the basis of following options.Statement I : Static friction is self adjusting force.Statement II : Friction does not depend on the mass of the body.

Explanation:

Link:

Question (4)

Explanation:

Link:

Question (5)

Explanation:

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Question (6)

Explanation:

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Question (7)

Select the incorrect statement(s) about static friction.I. Static friction exists on its own.II. In the absence of applied force static friction is maximum.III. Static friction is equal and opposite to the applied force upto a certain limit.IV. Static friction is greater than limiting friction

Explanation:

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Question (8)

Explanation:

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Question (9)

Which of the following statements is/are correct ?I. Newton's first law of motion defines force.II. Newton's second law of motion defines inertia.III. Newton's third law of motion is a measure of force.IV. Newton's second law of motion is called real law of motion.

Explanation:

Link:

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OUR POLICY

Directions: Read the statements carefully and answer the question on the basis of following options.
Statement I : Mass is a measure of inertia of the body.
Statement II : Greater the mass, greater is the force required to change its state of rest or of uniform motion.

Directions: Read the statements carefully and answer the question on the basis of following options.
Statement I : If the net external force on the body is zero, then its acceleration is zero.
Statement II : Acceleration does not depend on force.

Directions: Read the statements carefully and answer the question on the basis of following options.
Statement I : Static friction is self adjusting force.
Statement II : Friction does not depend on the mass of the body.

Select the incorrect statement(s) about static friction.
I. Static friction exists on its own.
II. In the absence of applied force static friction is maximum.
III. Static friction is equal and opposite to the applied force upto a certain limit.
IV. Static friction is greater than limiting friction

Which of the following statements is/are correct ?
I. Newton's first law of motion defines force.
II. Newton's second law of motion defines inertia.
III. Newton's third law of motion is a measure of force.
IV. Newton's second law of motion is called real law of motion.