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

Physical science involves several major fields of study centered on nonliving matter or physical properties. The most prominent areas of physical science include physics, chemistry, geology and astronomy. A primary goal ... More » Science Biology

The difference between longitudinal and transverse waves lies in their direction of particle displacement. Longitudinal waves are waves in which particle displacement is parallel to the movement of the wave, whereas tran... More » Science Physics Optics & Waves

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 »

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 »

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 »