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Heat is Transferred 3 Ways

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Presentation on theme: "Heat is Transferred 3 Ways"— Presentation transcript:

1 Heat is Transferred 3 Ways
Convection –the transfer of thermal energy by movement of currents within a gas or a liquid E.g. Air and ocean current, boiling water Radiation – transfer of energy by electromagnetic waves E.g. Roasting marshmallows over a fire Conduction – the transfer of thermal energy between particles within a substance by touch E.g. Getting a burn from picking up a hot pot on the stove

2 Can you identify which type of heat transfer is occurring?
Heat transfer scenes Physical Sciences Can you identify which type of heat transfer is occurring?

3 Ben’s breath on a cold day
convection Convection –The Ben’s breath is circulating in the air

4 Hot cocoa Convection Convection –The heat in the hot cocoa is travelling in a current in the cup Conduction –When your hand touches the cup

5 Soup spoon in hot soup Conduction Conduction –Heat transferred from soup to spoon through direct contact

6 A geyser named Geysirs -a hot spring that releases water and hot steam out of the Earth’s surface
Convection Convection –Hot steam and water are circulating under and above ground in currents

7 Chicks huddling under a heat lamp
Radiation Radiation –Heat is being transferred by electromagnetic waves (Light energy) via the heat lamp

8 Baking chocolate cake Convection Convection –Heat in the oven circulates in currents to bake the cake Conduction –The woman is transferring heat to her oven mitts

9 Melting ice cream Conduction –Heat is being transferred from the hand to the ice cream cone causing the ice cream to melt Conduction

10 Fireplace Radiation –The room is being heated through electromagnetic waves (light energy) Radiation

11 Boiling water Convection –The heat is circulating in a current through the boiling water Conduction –Heat is being transferred through touch from the hot water directly to the eggs Convection


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