Conduction: the process by which heat or electricity is directly transmitted through a substance when there is a difference of temperature or of electrical potential between adjoining regions, without movement of the material.
Convection: the movement caused within a fluid by the tendency of hotter and therefore less dense material to rise, and colder, denser material to sink under the influence of gravity, which consequently results in transfer of heat.
Radiation: the emission of energy as electromagnetic waves or as moving subatomic particles, esp. high-energy particles that cause ionization.
Convection: the movement caused within a fluid by the tendency of hotter and therefore less dense material to rise, and colder, denser material to sink under the influence of gravity, which consequently results in transfer of heat.
Radiation: the emission of energy as electromagnetic waves or as moving subatomic particles, esp. high-energy particles that cause ionization.
Joules: the SI unit of work or energy, equal to the work done by a force of one newton when its point of application moves one meter in the direction of action of the force, equivalent to one 3600th of a watt-hour
Calories: either of two units of heat energy
1st Law of Thermodynamics: The first law of thermodynamics is a version of the law of conservation of energy, adapted for thermodynamic systems.