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Published byLeo Small Modified over 8 years ago
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Thermal Energy
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Thermal Energy is a measure of kinetic energy of an object It is the energy of ALL the moving particles in an object
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Why does it feel like warm water is burning our hands if we run it over them when we come inside on a cold day?.
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Thermal energy depends upon BOTH speed of the particles AND the amount of particles
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Thermal energy, temperature and heat ARE NOT the same thing!
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Temperature is a measure of the average speed of the particles in an object It depends upon kinetic energy
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There are 3 scales that measure temperature FreezingBoiling Celcius0o100o Fahrenheit32o212o Kelvin273K373K
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Heat is a TRANSFER of thermal energy between objects It is an ACTION! Heat moves from high to low; stops when both objects are the same temperature
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Assuming both are boiling, Which has a higher temperature? Which has a higher THERMAL ENERGY?
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Explain all the energy transfers that are occurring.
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Conduction is a transfer of thermal energy when objects are touching
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Radiation carries thermal energy through matter or space
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Convection is transfer of thermal energy through a liquid or gas Convection carries thermal energy in currents (circular patterns)
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Conduction vs Convection
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thermal expansion
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