Physics is the most important natural science. It is regarded as one of the most profound fields with the biggest impact on the life and technology of the present day. Natural philosophy and physics are used together, often with a theme of philosophy expressed in a particular terminology, for example physics is also called physics. The study of physics contributes to our understanding of the universe, and especially of space and time.
In everyday life, physics helps us to predict and understand phenomena such as: light, gravity, sound, electricity, magnetism, atomic and sub atomic particles, space itself, time, and innumerable other natural facts. The field of physics has opened up new avenues for research and study. The most important areas of physics are optics, energy, thermodynamics, and cosmology (the study of space and the universe). The other branches of physics are applied mathematics, biology, and psychology. Quantum mechanics, particularly the well-known wave theory, is one of the most important areas of physics.
Physics is an extremely interesting subject, even though at times it can be quite difficult to understand. Physicists are continually looking for more precise ways to describe and explain natural phenomena. They have developed many theories and have worked hard to test them. Part of what makes physics so interesting is its deep connection with both mathematics and natural philosophy. In particular, both philosophy and physics are deeply influenced by the notions of energy, time, and matter; all these factors make up what we perceive as physical reality.