heat energy
Temperature's kinetic form
Heat energy is the energy transferred between objects or systems due to a temperature difference.
It flows from warmer to cooler bodies until equilibrium is reached.
In physics, heat is distinct from temperature—temperature measures how hot something is, while heat energy is what moves between things: The heat energy from the sun warms the earth's surface.
- warmingsActs of raising temperature
- exothermic reactionProcess releasing thermal energy
- entropyQuantified chaos in systems
- electricityEnergy from charged particles
- calorimetryMeasuring heat in reactions
joule · melting point · conduction · phase change · convection · Celsius scale · Kelvin scale · radiation · boiling point · fever · combustion · fire · burning · transfer · furnace · hot plate · friction · steam
- energyelectricity, power, oil, fuel, gas
- solar energysolar panels, solar panel, solar farm, solar array, solar cells
- life originsabiogenesis, biogenesis, primordial soup, panspermia, origin of life
heat energycold
Low temperature state
coldness · cooling · freezing · refrigeration · frigidity
heat energylight energy
sound energy · electrical energy · mechanical energy · kinetic energy · potential energy
heat, energy, heated, heating, heater, reheat, preheat, heaters, overheat