JAC Class 11 Physics MCQ Chapter-4: Laws Of Motion

1. Newton’s First Law of Motion defines –

  • Energy
  • Inertia
  • Momentum of Inertia
  • Work
Answer
Inertia

2. Measurement of which quantity is obtained through Newton’s 2nd law of motion? –

  • Force
  • Impulse
  • Acceleration
  • Momentum
Answer
Force

3. Which law of motion of Newton’s defines force?

  • First
  • Second
  • Third
  • None of these
Answer
First

4. To every action, there is an equal and opposite reaction which law of motion is this?

  • First
  • Second
  • Third
  • None of these
Answer
Third

5. Kinetic Friction is-

  • Less than static friction
  • More than static friction
  • Equal to static friction
  • None of these
Answer
Less than static friction

6. Newton’s which law is the real law of motion –

  • Newton’s First Law of Motion
  • Newton’s Second Law of Motion
  • Newton’s Third Law of Motion
  • None of these.
Answer
Newton’s Second Law of Motion

7. The product of mass and velocity is called –

  • momentum
  • force
  • impulse
  • pressure
Answer
momentum

8. The product of force and time which equals the change in momentum is called –

  • momentum
  • force
  • impulse
  • pressure
Answer
impulse

9. All objects resist a change in their state. It is called –

  • force
  • mass
  • inertia
  • momentum
Answer
inertia

10. Which of the following is not a conservative force?

  • Force of friction
  • Magnetic force
  • Gravitational force
  • Electrostatic force
Answer
Force of friction

11. Which of the following is a non-conservative force?

  • Interatomic force
  • Gravitational force
  • Electrostatic force
  • Viscous force
Answer
Viscous force

12. An object of mass 2kg is moving with the acceleration of 50 cm/s, Then force acting on it is –

  • 1 N
  • 10 N
  • 100 N
  • 25 N
Answer
1 N

13. In the case of uniform motion acceleration is –

  • Zero
  • Negative
  • Positive
  • None of these
Answer
Zero

14. The direction of the force of friction –

  • Perpendicular to the direction of motion of an object
  • Along the direction of motion of an object
  • Opposite to the direction of motion of an object
  • None of these.
Answer
Opposite to the direction of motion of an object

14. A jet engine works on the principle of conservation of –

  • Mass
  • Linear momentum
  • Energy
  • Angular momentum
Answer
Linear momentum

16. The units of impulse are the same as those of –

  • Energy
  • Power
  • Velocity
  • Momentum
Answer
Momentum

17. A cyclist bends while taking turn to-

  • reduce friction
  • generate required centripetal force
  • reduce apparent weight
  • reduce speed.
Answer
generate required centripetal force

18. Rocket propulsion is based on the principle of conservation of-

  • Mass
  • Energy
  • Linear momentum
  • Angular momentum
Answer
Linear momentum

19. Which physical quantity have the same unit as that of impulse?

  • Energy
  • Power
  • Moment
  • Velocity
Answer
Moment

20. Rolling friction is-

  • less than sliding friction
  • more than sliding friction
  • equal to sliding friction
  • None of these.
Answer
less than sliding friction

These JAC MCQs for class 11 Physics will help students prepare for the board exam. For more study materials, such as solutions, model papers, syllabus, MCQ Questions, and the latest updates on the JAC Board, please visit our website at JACBoardSolutions.com.

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