Luminescence is the emission of light by a substance not resulting from heat; it occurs when energy is absorbed by a substance and then re-emitted as visible light. This phenomenon can occur through various processes, including chemical reactions, electrical energy, or subatomic motions, and is used in applications ranging from glow-in-the-dark materials to advanced medical imaging techniques.

Luminescence

emission of light

substance not resulting from heat

Energy absorption is the process by which a material or system takes in energy from external sources and dissipates it internally, often transforming it into other forms such as heat or mechanical deformation. This process is crucial in applications like impact protection, vibration damping, and thermal insulation, where controlling energy transfer is essential for safety and efficiency.

Energy Absorption

re-emitted as visible light

Chemical reactions involve the transformation of substances through the breaking and forming of chemical bonds, resulting in the conversion of reactants into products. These reactions are governed by the principles of thermodynamics and kinetics, which dictate the feasibility and rate of these transformations.

chemical reactions

Electrical energy is the energy derived from electric potential energy or kinetic energy, associated with the movement of electric charges. It is a versatile form of energy that can be easily converted into other forms such as light, heat, or mechanical energy, making it essential for modern technology and daily life.

Relevant Degrees

Your Lessons