Physics

Physics, as the name is , we can think of any physical things happening around us. These all physical things are kept in the category of the physics subjects. Physical activities can be identified by seeing non-reversible or non-reactive things in the nature. Such as light, We get light but we cannot give the same light back again or electricity. Physics is a vast subject which makes us think about the physical changes occuring in the environment.

Let's lay out the basic subjects we learn in physics and its importance.
1)  Electricity - It is the most important subject in all physics. I think we cannot imagine life without electricity.  In order to use light, there is need to study what electricity actually is, how it is formed and its forms and uses in various substances. Electricity is the flow of electrons in a circuit. We will study all these in the subject discussion page of my blog.

2)  Optics - Optics deal with the study of light. Light helps us in various ways. Light helps us in seeing things. We can see this colourful world because of the light. The things we can see are based on two rules of reflection of light.(the incident ray, reflected ray, and the normal lies on the same plane and angle of incidence - angle of reflection.) Optics lays down all the rules of our eyes and its functioning.

3)  Magnetism - Magnets are substances which attract and repel. If we recall, our Earth acts as a giant magnet. In a magnet, like poles repel each other and unlike poles attract each other. Magnets have a very important aspect and use in the modern gadgets we use everyday.

4)  Sound - We all know that we can hear. We hear melodious and harsh sounds everyday. We put our headphones on and get lost in another world where sound is the only thing we can see and hear. Physics, lays out the mysteries of sounds and tells us all its secrets. Sound is produces by vibrations. A longitudinal wave is produced sound is produced from a vibrating object.

5)  Motion, Gravitation, Force - How do we move? Why do we move? The three laws of motion made by the great scientist Newton are responsible for the study of motion. We wonder why everything goes down but not up. The gravity of earth is responsible for this which acts against an upward moving object. All this are a part of physics.

Physics has the fun of its own. It make us think  Why?  and How?  If we engulf ourselves with physics then we find ourselves in a new world. All those mathematics fills your hearts and makes you think.

"New ideas and inventions is the thing world needs"

We will discuss everything in the subject discussion page coming soon.

Thank you. This was Arun Kumar blogging for you.