1.

Effects of force on the shape of an object: In the given table some situations are given in the first column showing how the force is applied on an object. Observe the shape of the objects carefully before and after applying the force. Mark T for temporary change and ‘P’ for permanent change.

Answer»
Action of forceChange in shape (temporary / permanent)
Stretching rubber bandTemporary
Squeezing spongeTemporary
Tearing paperPermanent
Crushing plastic bottlePermanent
Making chapathiPermanent
Breaking glassPermanent



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