Introduction to Physics PDF

# Introduction to Physics Why do we study physics? Which device will you choose to measure the length of a small cylinder? How will you determine the thickness of a piece of wire? How will you find the volume of small stones? Why ice float while a coin sinks in the water? After learning this unit...

# Introduction to Physics Why do we study physics? Which device will you choose to measure the length of a small cylinder? How will you determine the thickness of a piece of wire? How will you find the volume of small stones? Why ice float while a coin sinks in the water? After learning this unit you will be answer these and other similar questions. ## What is Physics? One of the most basic and ancient science is Physics. The word science refers to the study of a fact by collecting information through observation, presenting it in a mathematical way, justifying the idea with experiment and finally making a conclusion about the fact. **Physics is the branch of science which observes the nature represents it mathematically and conclude with the experiment** It basically deals with the behavior and structure of matter and the energy that derives the matter. **Physics is the branch of natural science that studies matter, its motion, its behavior through space and time and the related entities of energy and force. Physics is one of the most fundamental scientific disciplines, and its main goal is to understand how the universe behaves.** It is a matter of fact that Physics can be considered as the mother of all sciences. The beauty of physics lies in its Laws that govern this whole universe from an atom to large scale galaxies and in its experiments from home to large scale experiment labs. Physicist are categorized into two categories: those who observe the nature solve its mysteries with available **Quote** "No one undertakes research in physics with the intention of winning a prize. It is the joy of discovering something no one knew before." **Stephen Hawking** **Do You Know!** Physics Derived from Ancient Greek 'physicos' meaning 'knowledge of nature'.