Physics MCQs for Class 9 with Answers Chapter 1

Which of the following is vector quantity:

Force

Mass

Speed

Time

Graph is plotted between _____variable.

2

3

4

1

The centripetal acceleration is always along.

Normal force

Centripetal force

Mass

horizontal force

Motion of butterfly is an example of:

Random

Circular motion

Linear motion

Vibratory motion

In isolated system the momentum after collision of two bodies.

Increase

Decrease

Constant

Zero

Rolling friction is_________ then sliding friction.

Greater

Less

Some

Half

Coefficient of friction between tyre and dry road is.

0.6

1

0.05

0.2

The to and fro motion of a body about its mean position is called:

Circular motion

Random motion

Rotatory motion

Vibratory motion

When two bodies are in motion then the velocity of one body relative to the other is called.

Relative velocity

Uniform velocity

Variable velocity

Average velocity

1 Newton = ______________________

1 kg ms-2

1 kg ms

1 kg m-1 s-2

1 kg m-1 s-1