Thermal Expansion

General Overview

1. Thermal expansion is the tendency of materials to expand or contract with changes in temperature.
2. It is a crucial factor in the design of various structures and devices to prevent damage or failure.
3. The phenomenon is applied in engineering, construction, and daily life to ensure safety and functionality.

Applications in Railway Tracks

1. Railway tracks are made of steel, which expands during hot weather and contracts during

General Overview

1. Thermal expansion refers to the increase in the size (length, area, or volume) of a material due to an increase in temperature.
2. The extent of expansion depends on the material properties and the degree of temperature change.
3. The coefficient of expansion is a measure of how much a material expands per degree change in temperature.

Coefficient of Linear Expansion

1. The coefficient of linear expansion (α) describes the change

General Concepts of Thermal Expansion

1. Thermal expansion is the increase in the size (length, area, or volume) of a substance when its temperature is increased.
2. It occurs due to an increase in the kinetic energy of particles, which increases the separation between them.
3. Thermal expansion is observed in solids, liquids, and gases.
4. The degree of expansion depends on the material properties and the amount of temperature change