# Physics MCQs for Class 9 with Answers Chapter 2

#### Physics MCQs for Class 9 with Answers

A boy jumps out of a moving bus . There is danger for him to fall:
Towards the moving bus
Away from the bus
In the direction of motion
Opposite to the direction of motion

Which is unitless quantity:
Mass
Force
Inertia
Momentum

The unit of momentum is:
kgms-2
kgms-1
Ns-1
None of these

The study of motion without reference to mass and force.
Mechanics
Dynamics
Kinematics
None of these

1 Newton =_________
1 kg ms-2
1 kg ms
1 kg m-1s-2
1 kg-1 m-1 s-1

Centripetal acceleration of a body is given by formula:
ac=v/r
ac=mv2/r
ac=v/r2
ac=v2/r

Outer edge of the curved road is elevated to prevent
Circular motion
Centripetal force
Skidding
Protection

If the velocity of moving body in circle is doubled, then its centripetal force is
Double
Half
Four times
Remain

The acceleration produced in a moving body is always in the direction of applied
Velocity
Force
Speed
Momentum

Friction is due to
Roughness
Shape
Smoothness
None

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