Introduction to Physics

Fusion To transform a substance from solid to liquid by applying heat is called fusion. The definite temperature at which a solid starts to melt…

Matter can exist in three states e.g. solid, liquid and gas. All of us know that water has three states-ice, water and vapor. These three…

If the liquid is heated directly without using any container then the expansion that you observe is termed as a real expansion of the liquid.…

Liquid always has to be heated keeping it in a container. The liquid, as well as the container, expand when the heat is applied. A…

Liquids have no definite length or area. But it has definite volume. If the temperature is increased its volume increases. So, the expansion of liquid…

The volume of a solid substance increases if its temperature is increased. It is called volume expansion. Thermal expansion is the tendency of matter to…

The area of a solid is increased with an increase of temperature. It is called superficial expansion. Whenever there is an increase in the size…

Question: The length of a steel rod is 100 m at 20°C. If its length becomes 100.033 m at 50°C then determine the coefficient of…

With the application of heat the length, area and volume of solid substance expands. Linear expansion of solid and coefficient of linear expansion: When heat…

The basic conception of the molecular kinetic theory of matter is to consider that the molecules of a matter are in motion. The kinetic theory…