Category Physics

What is Physical Quantity | Types, Example

A physical quantity in physics is a quantity which can be defined and measured. For example, mass, length, volume of an object, speed of moving car, distance, force, time, current, etc. are the examples of physical quantities. We describe the…

Units and measurement

Units and Measurement Notes for Class 11

Introduction Units and Measurement | We know physics is an experimental science. To understand experimental science like physics, we associate our theoretical description of nature with our experimental observation of nature through quantitative measurement. In physics, we deal with numerous…

Law of conservation of energy

Law of Conservation of Energy with Example

Law of conservation of energy is one of the most fundamental concept in all physics. This law states that energy can neither be created nor destroyed, but can only be transformed from one form to another. For instance, when an…

Conservation laws in physics

Conservation Laws in Physics

In this chapter, we will understand conservation laws in Physics. During any physical phenomenon governed by different forces, several physical quantities may change with time, but some special physical quantities remain constant with time. Such physical quantities are called “conserved…

Fundamental forces in nature

Fundamental Forces In Nature

We all experience several forces in day-to-day lives. For example, when a moving object hits us, we experience the impact of forces on us. We need a force to push, carry or throw objects, deform or break them. Sir Isaac…

Branches of physics

Branches of Physics | Physics Fields

In this chapter, we will understand about different branches of physics. These branches are studied within the scope of physics. We can define the subject physics as: “The branch of science which deals with the study of matter, and energy,…

Scope and excitement of physics

Scope and Excitement of Physics with Example

In this chapter, we will understand about the scope and excitement of physics with the help of examples. First, we will understand the scope of physics. The scope of physics means the extent or range of view. It is truly…

What is physics

What is Physics: Definition, Classification, Role

Physics is the most basic discipline in the field of Natural Sciences, which also includes other disciplines, such as chemistry and biology. The word Physics comes from a Greek word “Fusis” which means “nature”. An ancient Greek philosopher Aristotle introduced…