JAC Class 11 Physics MCQ Chapter-2: Motion in a Straight Line

1. Out of the following, which cannot be negative?

  • Total path length
  • Velocity
  • Acceleration
  • None of these.
Answer
Total path length

2. The SI unit of acceleration is –

  • m/s
  • m/s²
  • cm/sec²
  • None of these
Answer
m/s²

3. The rate of change in velocity with time is called –

  • Displacement
  • Acceleration
  • Velocity
  • None of these
Answer
Acceleration

4. The rate of change of displacement –

  • Speed
  • Acceleration
  • Velocity
  • Distance
Answer
Velocity

5. The area under acceleration – time graph represents the –

  • Initial velocity
  • Final velocity
  • Change in velocity
  • distance traveled.
Answer
Final velocity

6. Two cars A and B are running at velocities of 60 km/h and 45 km/h. What is the relative velocity of car A with respect to car B, if both are moving eastward?

  • 15 km/h
  • 45 km/h
  • 60 km/h
  • 105 km/h
Answer
15 km/h

7. A body starts from 20 m/s. If its acceleration is 2 m/s². then the velocity of the body after 10 seconds is –

  • 40 m/s
  • 20 m/s
  • 30 m/s
  • 10 m/s
Answer
40 m/s

8. What does the speedometer of a vehicle read/measure? –

  • Average Speed
  • Average Velocity
  • Instantaneous Speed
  • Instantaneous Velocity
Answer
Instantaneous Speed 

9. Odometer measures –

  • Speed
  • Distance
  • Time
  • Average speed
Answer
Distance 

10. Negative acceleration is called –

  • Uniform acceleration
  • Variable acceleration
  • Retardation
  • Acceleration
Answer
Retardation 

11. Area under Speed – Time graph represents –

  • Distance
  • Average acceleration
  • Acceleration
  • None of these
Answer
Distance

12. Area under the force-displacement curve represents –

  • Velocity
  • Acceleration
  • Impulse
  • Workdone
Answer
Workdone

13. A body is moving with uniform acceleration. Its velocity –

  • will be increasing
  • will be decreasing
  • will be uniform
  • will increase first and decrease afterward
Answer
will be increasing

14. A force is acting on a body. The body will move with –

  • uniform velocity
  • uniform acceleration
  • uniform retardation
  • None of these
Answer
uniform acceleration

15. If a uniform force is acted upon a body which of the following remains constant?

  • Kinetic energy
  • Velocity
  • Momentum
  • Acceleration
Answer
Acceleration

16. In circular motion –

  • The direction of motion is fixed
  • The direction of motion changes continuously
  • Acceleration is zero
  • None of these
Answer
The direction of motion changes continuously

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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