Describes the origin and evolution of the universe from its initial state of extremely high density and temperature.
Proposed that electrons orbit the nucleus in fixed energy levels or shells, leading to the development of quantum mechanics.
Set of equations that describe how electric and magnetic fields are generated and altered by each other and by charges and currents.
Describes the behavior of very small particles like atoms and subatomic particles.
Special Theory of Relativity: Describes the relationship between space and time and the concept of the constant speed of light. General Theory of Relativity: Explains gravity as the curvature of spacetime caused by mass and energy.
First Law: An object at rest stays at rest, and an object in motion stays in motion unless acted upon by an external force. Second Law: The force acting on an object is equal to the mass of the object multiplied by its acceleration. Third Law: For every action, there is an equal and opposite reaction.