What the science is physics

Physics is the science that describes the fundamental nature of the universe and how it works, always striving for the simplest explanation of things and phenomena. For example, physics explains why the sky is blue, and why steel ships float, and what atoms are made of. The goal of physics is to explain things and phenomena with the help of laws showing their simplicity and beauty.

In achieving their goal, physicists construct the model to represent the world around them. For example, although we cannot see atoms, we can construct models of them to understand how they behave. In general, such models of physical systems take a mathematical form.

Physics is an experimental science. Any physical theory depends on observations and experiments. To understand physics we must be able to connect our theoretical descriptions of nature with our experimental observations of nature

In studying and explaining the various phenomena of nature, scientists work in different fields – biology, geography, chemistry, geology, and even physics itself is divided into a number of branches – mechanics, optics, electricity, sound, molecular, atomic physics, and others. But we all. People living on the earth, should remember that there is a unity in nature and that we should take care of it