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physical phenomena > process > physical process

physical process
subject			fact

physical process	has domain physics
	is a kind of process

Kinds of physical process :

• atomic process (47 kinds, 125 facts)
• decay process
• motion (111 kinds, 315 facts) - Process of passing through space or changing position
• nuclear process (43 kinds, 185 facts)
• optical process (58 kinds, 193 facts)
• phase transition (10 kinds, 41 facts) - An abrupt change in the equilibrium state of a system. A sudden transition between one state of matter or energy and another state. For example, when hot water turns to steam or when ice crystallizes out of a liquid that has been cooled to below freezing, a phase transition has occurred. According to the grand unified theories of particle physics, the infant universe may have undergone one or more overall phase transitions. In this case, the energy uniformly filling all space corresponded to the supercooled liquid.
• reaction (12 facts)
• relativity process (2 kinds, 7 facts)