Unknown Story

Hey My name is Jordyn Mack. Im a 11 years old my birthday is july 11 2011 and Im a Cancer and my favorite color is Blue.
Heat is defined as the flow of energy form a cooler object.
Heat transfer is the movement of heat across the border of the system due to a difference in temperature between the system and it's surroundings.
Conduction transfer heat from one object to another when they are in direct contract with one another.
When frying wegetables in a pan Heat transfer takes place from flame to the pan and then to the vegetables.
Convection-heat is transferrd in the liquid and gases from a region of higher temperature.Convection heat transfer occurs partly due to the actual movement of moleclues or due to the mass transfer.
Heating of milk in a pan.
In a microwave,the substances are heated directly without any heating moving.
It is the process in which heat is transferred from one body to another body without involving the moleclues of the medium.Radiation heat transfer does not depend on the medium.