Physics MCQs for Class 9 with Answers Chapter 2

1 N ___________

1 kgms-2

1 kg ms-1

ms-2

All

Coefficient of friction between tyre and dry road is.

0.6

1

0.05

0.2

________ is used to measure the force or weight of a body :

Physical balance

Spring balance

A and B both

None

In velocity the body become double , then centripetal force will be:

Half

Three times greater

Double

Four times greater

Weight is measured by:

Spring balnce

Measuring cylinder

Physical balnce

None of these

Which law of motion is called law of inertia:

first law of motion

Second law of motion

Third law of motion

Law of conversation of momentum

___________ helps us to pick up objects.

Force

Weight

Friction

Nil

If a 20 N wight of block hang with the string vertically then tension in string is:

0 N

20 N

2 N

10 N

The velocity and acceleration of the body moving with uniform speed in a circular path will be:

In same direction

In opposite direction

Mutually perpendicular

Equal

Sliding friction can be converted into rolling friction by using

Levers

Wedges

Ball bearings

Pulleys