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Published byAndra Parrish Modified over 9 years ago
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Question of the Day Label the heat movement as conduction, convection or radiation. 1.Lava Lamp2.Fire3.Spoon in soup
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Thermal Energy on the Move
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Thermal energy travels as heat from higher temperature to low temperature. 3 Ways Thermal Energy can move 1. Conduction 2. Convection 3. Radiation
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1. Conduction- the transfer of energy through matter by direct contact of particles. Ex: Spoon in a pot of boiling water. The heat from the stove heats the pot which heats the water which heats the spoon.
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2. Convection- the transfer of energy by the bulk movement of matter. -This happens when fluid particles move from 1 location to another, carrying energy with them. Ex: hot-air balloon
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Hot water rises Cooler water sinks Cools at the surface
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Radiation- the transfer of energy in the form of waves. -Does not require matter. Ex: Sun-rays -Only radiant energy that is absorbed changes to thermal energy (heat).
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There are no particles between the Sun and the Earth. ? RADIATION
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Promoting Thermal Energy Conductors- allow heat to move easily through them. Ex: Metals Solids Solids
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Reducing Thermal Energy Insulators- do not allow heat to move easily through them. Ex: Wood Plastic Plastic Glass Glass Gas Gas
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Label the heat movement as conduction, convection or radiation. 1.Lava Lamp2.Fire3.Spoon in soup Radiation ConductionConvection
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