•ELASTIC Initial Length (1) Weights(coins mass)(F) Length with load (12) cm Elongation (x), LaTeX: x=2 - 1 cm 20g 4.9 cm 5.2 cm 0.3 cm 40g 5 cm 5.5 cm 0.5 cm 60g 5 cm 6 cm 1 cm 80g 5.2 cm 6.3 cm 1.1 cm 100g 5.3 cm 6.5 cm 1.2 cm •STEEL Initial Length (1) Weights(coins mass)(F) Length with load (12) cm Elongation (x), LaTeX: x=l2 - l1 cm 20g 8 cm 8.2 cm 0.2 cm 40g 8 cm 8.5 cm 0.5 cm 60g 8.1 cm 8.9 cm 0.8 cm 80g 8.1 cm 9.2 cm 1.1 cm 100g 8.1 cm 9.5 cm 1.4 cm GRAPH THE DATA: USE RED FOR COMPUTE FOR THE SLOPE: ELASTIC AND BLUE FOR STEEL.

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Mechanical Properties of Solids

There are three types of matter- solid, liquid and gas. Out of them, solids have a rigid shaped and size. The intermolecular forces of attractions in solids are greatest. Mechanical properties are the physical properties of a material which it shows, when it is provided with certain amount of force or load. These properties are to be kept in mind for various purposes. When a force is applied to an object, the object may or may not get deformed depending upon its elastic property. But every time the object develops a restoring force against the force applied. This is commonly known as stress. If the object changes its dimensions due to the force applied it develops strain ( which is the ratio of change in dimension to the original dimension).