The reason for the change in shape of a regular body is

$A$ $50 \;kg$ girl wearing high heel shoes balances on a single heel. The heel is circular with a diameter $1.0 \;cm$. What is the pressure exerted by the heel on the horizontal floor?

The value of tension in a long thin metal wire has been changed from $T_{1}$ to $T_{2}$. The lengths of the metal wire at two different values of tension $T_{1}$ and $T_{2}$ are $l_{1}$ and $l_{2}$ respectively. The actual length of the metal wire is:

Explain tensile stress and compressive stress.

Write copper,steel,glass,and rubber in the order of increasing coefficient of elasticity.

Identify whether the following statements are True or False:
$(a)$ If a body breaks immediately after the elastic limit,then this body is known as ......
$(b)$ An elastic body which can be stretched to cause large strains is called ......