Thermal (heat) Energy
3 Ways Thermal Energy can be Transferred • Conduction • Convection • Radiation Conduction •The movement of heat or electricity through matter •Solids are good conductors, particularly metals. Examples of Conduction – (direct contact) •Touching a metal spoon in a cup of hot liquid •Putting a heating pad on your back •Feeling the heat from a hot poker in a fire place •Placing a hand on top of a basket of hot rolls Convection •The transfer of thermal energy though a fluid (gas or liquid) •Due to differences in density •Hot fluid rises while cold fluid sinks. Examples of Convection –(hot rising/cold sinking) •Macaroni rising and falling in a pot of boiling water •Lava lamp rising and sinking •Hot magma rising in the mantle, cold sinking •Hot air rising in the atmosphere, cold sinking •Hot water rising in the oceans, cold sinking Radiation •Energy transmitted in waves or a stream of particles •Travels through space and other types of matter Examples of Radiation - (waves or particles of energy) •Laying out in the sun at a beach •Holding your hand over a burning match without touching it •Feeling the warmth of a bonfire •Holding your hands over a light bulb Comments are closed.
|
Erik E. Mason
|