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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
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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?
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Ben’s breath on a cold day
convection Convection –The Ben’s breath is circulating in the air
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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
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Soup spoon in hot soup Conduction Conduction –Heat transferred from soup to spoon through direct contact
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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
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Chicks huddling under a heat lamp
Radiation Radiation –Heat is being transferred by electromagnetic waves (Light energy) via the heat lamp
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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
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Melting ice cream Conduction –Heat is being transferred from the hand to the ice cream cone causing the ice cream to melt Conduction
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Fireplace Radiation –The room is being heated through electromagnetic waves (light energy) Radiation
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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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