To investigate different materials for the most effective thermal insulator for a house.
Heat transfer is the gain and loss of energy.
There are three ways in which thermal energy can be transferred:
Conduction – this is when energy travels from molecule to another. When one molecule receives energy it begins to vibrate and hits other molecules and makes them vibrate. And will spread throughout the object.
Convection – this will only occur in gases and liquids. When heat is applied to the bottom of the substance, it will heat it up. When it heats up, it will rise to the top, forcing colder areas towards the heat source and then they will receive energy and rise to the top, etc.
Radiation – it travels in waves. When it hits a molecule it makes it vibrate.
I will be concentrating on conduction, as this is the main way in which thermal energy is transferred lost from housing. Which means that I need something that is a bad thermal conductor (good thermal insulator) to keep the amount of conduction to a bare minimum?