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CHAPTER-4: MOTION IN A PLANE

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

• Temperature
• Charge
• Coefficient of friction
• Impulse
Impulse

2. Which of the following is a scalar quantity?

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

3. Which of the following is a vector quantity?

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

4. Which of the following is a vector quantity?

• Time
• Displacement
• Speed
• Distance
Displacement

5. Which of the following is scalar?

• Velocity
• Speed
• Displacement
• Force
Speed

6. Which of the following is a vector?

• Energy
• Work
• Potential
• Momentum
Momentum

7. Angular displacement in unit time is called –

• Angular velocity
• Angular movement
• Angular acceleration
• Frequency

Angular velocity

8. Rate of change of angular velocity is called –

• Angular momentum
• Angular displacement
• Frequency
• Angular acceleration
Angular acceleration

9. Path followed by the projectile is –

• Straight line
• Circular
• Ellipse
• Parabolic
Parabolic

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.
Centripetal force

11. In circular motion –

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

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

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