Heat Energy

Heat Energy vs. Temperature

Heat energy is the random kinetic energy of the particles that make up an object. In other words, heat energy is how fast the particles are moving in an object. On the other hand, temperature acts like a speedometer. It assigns a number to how fast the particles are moving. So, if an object has a lot of heat energy, the particles in that object are moving faster and will have a higher temperature.


Methods of Heat Transfer

Heat can be transferred by three methods- conduction, convection, or radiation. Conduction is heat transfer through a solid, in which matter does not move. Convection is heat transfer through a liquid or gas, where matter can move with the transfer of heat. Finally, radiation is a transfer of heat unlike the other two methods. In radiation, heat is transformed into electromagnetic energy that travels by an electromagnetic wave (which we will learn more about) until it hits an object and transforms back to heat energy.