Category: Physics

Expansion of Liquids

Liquids just like solids expand on heating and contract on cooling. The expansion and contraction in liquids is more than those in solids. The reason...

Atmospheric Humidity

Due to the heat radiations coming from the sun, a huge amount of water on the surface of the earth gets evaporated. When water evaporates,...

Principle of Conservation of Energy

The energy is a conserved quantity. There won’t be any change in the energy of an isolated system. The energy can neither be created nor...

Collisions and Its types

There are many examples of collisions occurring in our daily life. Some of the examples are: A person walking with his head down may collide...

Forms of Binding in Crystals

The constituent particles (atoms or molecules) of a crystal are closely packed and held together by strong mutual force of attraction. This force which exists...

Methods of Heat Transmission

Heat energy can be transmitted from one point (or place) to another point (or place) by three different methods. The following are the methods of...

Capacitor and Its Principle

The charge can stay in the body for some time when the charge is given to that body. The time for which a body can...

Peltier Effect and Thomson Effect

If the junctions of a thermocouple are kept at constant temperature and a current is passed through the wires of the thermocouple, it has been...

Voltaic Cell, Its Construction and Defects

A voltaic cell is an electrochemical cell used to produce electrical energy with the help of a chemical reaction. It is the primary cell which was designated by...