CHAPTER-4: MOTION IN A PLANE

1. Which of the following is not a scalar quantity?

  • Temperature
  • Charge
  • Coefficient of friction
  • Impulse

[su_spoiler title=”View Answer ” style=”fancy”]Impulse [/su_spoiler]

2. Which of the following is a scalar quantity?

  • Electric current
  • Linear momentum
  • Acceleration
  • Electric field.

[su_spoiler title=”View Answer ” style=”fancy”]Electric current [/su_spoiler]

3. Which of the following is a vector quantity?

  • Gravitational potential,
  • Electric current
  • Current density
  • Angle.

[su_spoiler title=”View Answer ” style=”fancy”]Current density [/su_spoiler]

4. Which of the following is a vector quantity?

  • Time
  • Displacement
  • Speed
  • Distance

[su_spoiler title=”View Answer ” style=”fancy”]Displacement [/su_spoiler]

5. Which of the following is scalar?

  • Velocity
  • Speed
  • Displacement
  • Force

[su_spoiler title=”View Answer ” style=”fancy”] Speed[/su_spoiler]

6. Which of the following is a vector?

  • Energy
  • Work
  • Potential
  • Momentum

[su_spoiler title=”View Answer ” style=”fancy”]Momentum [/su_spoiler]

7. Angular displacement in unit time is called –

  • Angular velocity
  • Angular movement
  • Angular acceleration
  • Frequency

 

[su_spoiler title=”View Answer ” style=”fancy”]Angular velocity [/su_spoiler]

8. Rate of change of angular velocity is called –

  • Angular momentum
  • Angular displacement
  • Frequency
  • Angular acceleration

[su_spoiler title=”View Answer ” style=”fancy”]Angular acceleration [/su_spoiler]

9. Path followed by the projectile is –

  • Straight line
  • Circular
  • Ellipse
  • Parabolic

[su_spoiler title=”View Answer ” style=”fancy”]Parabolic [/su_spoiler]

10. When a particle moves on a circular path then the force that keeps it moving with uniform velocity is –

  • Centripetal force
  • Gravitational force
  • Internal force
  • Atomic force.

[su_spoiler title=”View Answer ” style=”fancy”]Centripetal force [/su_spoiler]

11. In circular motion –

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

[su_spoiler title=”View Answer ” style=”fancy”]The direction of motion changes continuously[/su_spoiler]

12. Force responsible for the circular motion of the body is –

  • Centripetal force
  • Gravitational force
  • Centrifugal force
  • None of these

[su_spoiler title=”View Answer ” style=”fancy”]Centripetal force [/su_spoiler]

13. A particle revolves around a circular path. The acceleration of the particle is inversely proportional to –

  • Radius
  • Velocity
  • Mass of particle
  • Radius and Velocity

[su_spoiler title=”View Answer ” style=”fancy”]Radius [/su_spoiler]