Q3 of 11 Page 67

Are they vector or scalar quantities? Why?

Weight is a force. It has both magnitude and a direction. The direction of weight is towards the centre of the earth. Thus, weight is vector quantity.
Mass has no direction but only magnitude. Thus, mass is scalar quantity.

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2

A body, the mass and the weight of which were already determined as the Equator, is now placed at the Pole. In this context, choose the correct statement from the following:

a. Mass does not change, weight is maximum


b. Mass does not change, weight is minimum


c. Both mass and weight are maximum


d. Both mass and weight are minimum.

 3

What is meant by the terms mass and weight?

 3

The mass of a body is 30 kg. What is its weight on earth?
(g = 9.8 ms-2)

 3

What is its weight on the moon?
(g = 1.62 ms-2)