Physics is one of the earth sciences that are related to nature and the universe where mankind lives. It is an interesting and exciting discipline because it helps people to become effective problem-solvers. Besides, it has enabled mankind to develop an analytical understanding of things. In fact, everything that happens in the world is by the grace of physics. From growth of trees to the cold and warm breeze we experience, falling of rain to snow fall, sun shining to glacial activity , exciting eclipses to floating of ships , the flying birds to the rainbow high in the sky can only be explained by physics.
The major fields of physics include mechanics, optics, electromagnetism, and thermodynamics.
Physics explains key concepts regarding the behavior of nature. The many theories and models that explain these concepts is what are referred to as physical sciences.