Question

Classify the given activities into two buckets: Change in shape and change in physical state.

(i) Crumpling paper

(ii) Cutting vegetables

(iii) Heating solid ghee

(iv) Solidification of water to ice cubes

• A. Change in shape:- (iii) ,(iv) Change in physical state:- (i) ,(ii)
• B. Change in shape:- (i), (ii), (iii) ,(iv) Change in physical state:- (iii) ,(iv)
• C. Change in shape:- (i), (ii), (iii) Change in physical state:- (iii) ,(iv)
• D. Change in shape:- (i), (ii) Change in physical state:- (ii) ,(iii)

Answer 1

The correct option is B

Change in shape:- (i), (ii), (iii) ,(iv)

Change in physical state:- (iii) ,(iv)

In all the given options, the original shape is modified, either temporary or permanently.

Heating solid ghee (Solid $\to$ Liquid) and solidification of water to ice cubes (Liquid $\to$ Solid) also involve a change in their physical state on the absorption of heat.