Albert Einstein was of the opinion that physics is an attempt to conceptually grasp reality as something that is considered to be independent of its being observed. In simple words, physics is all about understanding how the universe behaves. The word "Physics" literally translates to "knowledge from nature". It falls under the category of natural science and its main objective is to study matter, its motion and behaviour through space and time, and the related entities of energy and force. This gives you a glimpse of what this particular discipline is about. Great physicists who played a role in identifying the natural laws and theories that supported the modern scientific understanding of the world include Albert Einstein, Galileo Galilee, Erwin Schrodinger, Sir Isaac Newton, and Max Planck. Those choosing to study physics could be among the next generation of revolutionary thinkers in this field. Physics has made a huge difference and contribution to the field of science and technology. Classical Physics deals with various concepts like the speed of light, sound, electricity, heat, and magnetism. However, modern physics is more advanced and deals with higher speed, massive objects as well as tiny elements like protons, neutrons, and electrons.