Changes In Shape

• Forces can change the shape of an object.

• Depending on the object, the change in shape may be temporary or permanent.

• An object that returns to its original shape once the force is no longer acting on it is known as an elastic object.

• An object that retains its new shape once the force is no longer acting on it is known as an inelastic object.

• Example 1

• Squeezing a rubber ball can change its shape, but when released, the ball will return to it original shape. A rubber ball is therefore an elastic object.

• Example 2

• Squeezing clay will cause a permanent change in its shape. Clay is therefore an inelastic object.

Forces can cause a change in shape.

(Images: Sadashiva, Adobe Stock; rodimovpavel, Adobe Stock)