(English Medium) ICSE Class 9 - CISCE Question Bank Solutions

Show how will you use the physical balance to measure the mass of an object.

Mention three precautions that you would observe to measure the mass of a body using a beam balance.

 State two conditions for a beam balance to be true.

Define the state of rest.

What do you mean by a vector quantity?

Is mass a vector quantity?

How is a vector represented?

A book is lying in an almirah. Is it at rest or in motion?

What do you mean by motion?

Are rest and motion relative?

Out of force and energy, which one is vector?

Give two examples of scalars.

Different positions of a body are given below. Which of the two positions lie on the same straight line?
(i) 8 m, 60^o NE
(ii) 3 m, 60^o NE
(iii) 5 m, 60^o EN
(iv) 5 m, 60^o NW

A quantity can be represented only when its magnitude and direction are specified. Is it scalar or vector?

Are the passengers sitting in a train in motion or at rest with respect to each other?

You are at rest as well as in motion. Justify the statement giving your point of view.