Effects of Forces on Solids

What is the effect of force on a clay ball, when it is squeezed?

Stretching force can change the shape and size of objects.

Define deformation.

Which of the following is an effect of force?

The body which does not have the property of opposing the deforming force, is known as a elastic body. 

The quality of the material which opposes the change in shape, volume, or length is called

The elastic limit for a gas,

A wire is suspended vertically from a rigid support. When loaded with a body in air, the wire extends by $6 \mathrm{mm}$ and when the body is immersed completely in water, the extension is reduced to $4 \mathrm{mm}$. The relative density of material of the body is

A bar of length $100 \mathrm{cm}$ is supported at its two ends. The breadth and depth of bar are $5 \mathrm{cm}$ and $0.5 \mathrm{cm}$ respectively. A mass of $100 \mathrm{g}$ is suspended at the centre of bar. Compute the depression produced in the bar.
$\left(Y =4\times {10}^{10} \mathrm{N}/{\mathrm{m}}^2\right)$

Explain the term: perfectly plastic body

Cotyledons are also called-

Hammering and Rolling will ________ plasticity of a rubber tyre.