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