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Viva questions for Physics Class 12
विज्ञान 10 – महत्वपूर्ण MCQs
Fundamentals of Arithmetic
Science 10 – Important MCQs

Laws of Motion – L1

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Question 1 of 10

1. Question

What is true about gravitational and magnetic forces?

gravitational force is contact force while magnetic force works from distance.

magnetic force is contact force while gravitational force works from distance.

gravitational force as well as magnetic force are contact forces.

gravitational force as well as magnetic force act from distance.

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Question 2 of 10

2. Question

Which is true about first law of motion?

Every body continues to be in its state of rest or of uniform motion in a straight line unless compelled by some internal force to act otherwise.

Every body can change its state of rest or of uniform motion in a straight line without need of some external force.

Every body continues to be in its state of rest or of uniform motion in a straight line unless compelled by some external force to act otherwise.

special body can change its state of rest or of uniform motion in a straight line without need of some internal force.

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Question 3 of 10

3. Question

Law of inertial refers to

first law of motion

third law of motion

second law of motion

conservation of momentum

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Question 4 of 10

4. Question

Momentum is defined as

product of mass and speed

product of mass and velocity

product of mass and acceleration

product of force and time

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Question 5 of 10

5. Question

Momentum is a

scalar quantity

vector quantity

some times scalar some times vector

none of the above

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Question 6 of 10

6. Question

A body of mass 100g is moving with a speed of 10 m/s towards north. What is its momentum?

1000 kg.m/s

1000 kg.m/s towards north

1 Kg.m/s

1 Kg.m/s towards north

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Question 7 of 10

7. Question

Inertia refers to

conservation of momentum

conservation of energy

resistance to change

fixed external force

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Question 8 of 10

8. Question

Which is NOT true about Impulse?

Impulse = product of force and time duration of action of force

Impulse = rate of change in momentum

Impulse = change in momentum

Impulse is a vector quantity

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Question 9 of 10

9. Question

Which is NOT true about Newton’s third law of motion?

action and reaction of forces act instantly

action and reaction forces act on two different objects

action and reaction forces are equal in magnitude

All are correct

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Question 10 of 10

10. Question

What is true about the relation between coefficients of static and kinetic friction?

coefficient of static friction = coefficient of kinetic friction

coefficient of static friction > coefficient of kinetic friction

coefficient of static friction < coefficient of kinetic friction

coefficient of static friction and coefficient of kinetic friction cannot be compared

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Points Table
Viva questions for Physics Class 12
विज्ञान 10 – महत्वपूर्ण MCQs
Fundamentals of Arithmetic
Science 10 – Important MCQs

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