sentence: Photons are particles, much smaller than atoms.
sentences_after: The more photons a lamp shoots off, the brighter the light. Light is a form of energy that behaves like the waves in water or radio waves. Each photon carries a certain amount, or 'quantum', of energy depending on its wavelength.
concept_name: photon
headings: Quantum mechanics
categories: Basic physics ideas Mechanics Mathematics Nuclear physics Quantum mechanics