articles defines physics as "the branch of science that is mostly involved with properties of matter, energy and nature." Additionally, Ask lists the main topics explored in physics: mechanics, heat, light, sound, magneti... More » Science Physics

Some basic physics questions can be "what are electrical conductors," "describe refraction," "give the numerical value for the speed of light," "give the definition of momentum" and "specify the units used for work." The... More » Science Physics

One of the most common definitions for efficiency in physics is a measurement of how much of the desired work or product is obtained from each unit of energy invested into that task or product. An additional definition o... More » Science Physics
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Einstein's Theory of Relativity is his interpretation on how matter and energy are related, as well as the properties of the fabric of spacetime with respect to gravity. The General Theory of Relativity mainly covers the... More » Science Physics

Quantum physics, also referred to as quantum mechanics, is "A theory of matter that is based on the concept of the possession of wave properties by elementary particles," according to Merriam-Webster. Quantum physics dea... More » Science Physics

In physics, "displacement" is defined as the change in position of an object, including how far the object travels and in what direction. If an object moves around but returns to its original position, the object will mo... More » Science Physics

Albert Einstein studied physics. He became famous for developing the theory of relativity and for conducting extensive research on the Brownian movement of molecules and the thermal properties of light. In 1921, he recei... More » Science Physics