Heat Transfer

Hey guys i'm back with a new topic. Today i'll be talking about heat and the details of what heat is and how it helps us all during our daily lives. First off, heat is the transfer of thermal energy from one object to another when the objects are at different temperatures. The amount of thermal energy that is transferred when two objects are brought into contact depends on the difference in temperature between the objects. Heat is important to us and our lives because it keeps us warm so we are able to live.
Heat is transferred in three ways. They are radiation, conduction, and convection. Radiation is when energy is transferred by electromagnetic waves. These waves carry energy through empty space, and also through matter. The transfer of thermal energy by radiation can occur in solids, liquids, and gases.

Conduction is when the particles in a material collide with other close particles. If you were to hold an ice cube in your hand, the faster-moving molecules in your hand bounce against the slower-moving molecules in the ice. The heat from your hand transfers to the colder ice, the molecules in the ice begin to move faster. As a result, the ice becomes warmer and its temperature rises. Finally, there is convection.

Convection is when thermal energy by the movement of atoms or molecules is transferred from one part of a material to another. When you heat a pot of water on a stove, thermal energy can be transferred through the water. Convection occurs in gases and liquids, not in solids.

That's all for today guys see you next time!