Thermal energy These cards are about conduction, convection and radiation. 2.0 / 5 based on 1 rating ? ScienceEnergy and efficiencyGCSEAll boards Created by: Nathan mccombCreated on: 18-09-09 22:22 conduction Conduction is all about when heat is transferred through a solid. The heat is passed through a solid by free electrons in the molecules. These vibrations get bigger when a solid has more energy (e.g when it is being heated). 1 of 3 Convection Convection is all about when a gas, liquid moves and carries heat with it. This means that it will become less dense than the colder fluid around it. when the warmer fluid floats and colder fluid takes its place this is called a convection current. 2 of 3 Radiation Radiation is when heat moves around in electromagnetic waves lick light does. Any hot object will emit heat radiation - the hotter it is, the more heat radiation it emits. The main difference with radiation is that conduction, convection will only work in solids, liquids or gases. Radiation will work in a vacuum just like we get heat from the sun through space. 3 of 3
Comments
No comments have yet been made