# Physics – Forces and Motion, Heat, Light, Waves, Electricity, Electromagnetism, Electronics & Radio Activity

Physics is the study of basic principles that govern the Physical World around us. It is the study of energy and matter. More precisely how matter and energy interact with each other and how they affect each other. Physics will always be exciting and things keep changing with every new discovery. With new theories and discoveries, not just the answer but also the question changes. This is why many individuals define it by what it was instead of what it will be.

Physics helps us to organize the universe and it gives you the powerful tools to express your creativity and see the world in new ways. It gives you the quantitative and analytic skills needed for analyzing data and solving problems in the sciences, medicine, engineering, finance, management, as well as in economics, law, and public policy.

## Emergence of Physics

Early greeks established the first quantitative physical laws such as the Archimedes’ descriptions of the principle of levers and the buoyancy of bodies in the water. Physics as a Science stagnated for years and no one conducted experiments. By 17th Century, Galileo Galilei and Issac Newton explored the use of Mathematics as a fundamental tool and brought further advancements such as the Law of Gravity and Law of Motion.

During the 1800s Laws of Magnetics, Electromechanical waves were developed by Faraday and Maxwell. Moder Physics began in the 20th century with the discovery of X-Rays, Quantum Hypothesis, and Atomic Theory.

### Importance | Why Study Physics?

Physics is one of the most important subjects in modern times. It has got a huge prominence in our day to day life and everything we do in our lives is related to this subject. Some of the key points why we need to study Physics is given in the below modules

• Without Physics, we can’t imagine our lives and there would be no cars, airplanes, motorbikes, light bulbs, digital cameras, grocery laser scanners, solar panels, computers, and much more.
• It defines the universe with the simplest definitions possible. It does that by basic quantities and units such as electric field, kinetic energy, and velocity, etc.
• Physics opens up the door to many career options.
• You can find relations between measurable quantities like Newton’s laws of motion, special relativity, and conservation of energy.

At Aplustopper we have got several Video Lessons and 3D Animation Techniques that will help you retain the concepts for a longer time. It can be fun learning and you will fall in love with the subject with our teaching methods.

### Free Physics Study Material

We at Applustopper hosts several links to know the Chapteriwse Physics Concepts. You can access them at any time and learn the concepts you wish to learn and all of them are given in a detailed way. Links to each article are given under their Parent Topics and you can prepare using them.

1. Why Should One Learn Physics?

Physics is one of the branches of science that deals with energy, Matter, and their interactions. One should learn Physics to understand the fundamentals of nature. It even helps to improve quantitative and analytical skills in the fields of medicine, engineering, etc. Most importantly, we can understand the reasons behind the things we see in our day to day lives.

2. Name five branches of Physics?

Five main branches of Physics are as follows

1. Classical mechanics
2. Quantum mechanics
3. Electronics and electromagnetism
4. Optics
5. Relativity

3. What is the best way to learn Physics?

You can learn Physics using the preparation resources such as Study Materials, Notes, etc. by accessing the quick links available on our page.

4. What is the main purpose of Physics?

The major purpose of Physics is to explain how the universe works with the help of laws, theories, and principles.

5. What is the role of Physics in our day to day lives?

Physics explains the logic behind the things we do in our day to day life which are often left unanswered. You can find answers to plenty of questions like “what is the reason behind the twinkling of the stars,” why we don’t fall while we are walking on the floor, why we tend to move forward when the bus stops suddenly, etc. using Physics in our daily lives.