Physics is a field of science that studies the interactions between matter and energy. It covers a wide range of topics, from kinematics and Newton's laws of motion to vectors and projectiles, two-dimensional forces, moment and collisions, work and energy, circular motion and gravitation, static electricity, thermodynamics, statistical mechanics, electrostatics in solution, fluid mechanics, chemical equilibria, reaction rates, optics and wave optics, and selected topics in modern physics. The great physicists who played a role in identifying the natural laws and theories that underlie modern scientific understandings of the world include Albert Einstein, Galileo Galilei, Erwin Schrodinger, Sir Isaac Newton and Max Planck. Physics degrees will introduce students to contemporary physics topics, providing an overview of how the principles of physics are applied in industries such as medicine, communications and engineering.
In addition to hands-on work and experimentation, physics degrees will also include a lot of theoretical learning and complex mathematics. Students develop skills that include observing and measuring physical phenomena, analyzing and interpreting data (mainly using Python notebooks), clearly identifying and including possible sources of errors, and also reaching conclusions and publishing experimental results. Although the topic has a reputation for being separate from everyday applications, physicists do in fact play an important role in many key industries, including many aspects of technology and engineering. Medical physicists' areas of expertise include laser technology, radiation therapy, nuclear medicine, and physiological monitoring.
Alternative careers for bachelor's degree graduates in physics include software development, medical technology, manufacturing, and media. Conserved quantities are the most important in physics; among them are mass and energy (in the theory of relativity, mass and energy are equivalent and are preserved together), momentum, angular momentum and electrical charge.