Thermal Energy - Heat Transfer

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What is thermal energy?

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Thermal energy is the total kinetic energy of the particles in a substance, which is related to its temperature.

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What are the three methods of heat transfer?

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The three methods of heat transfer are conduction, convection, and radiation.

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Define conduction in the context of heat transfer.

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Conduction is the transfer of heat through direct contact between materials, where heat moves from the hotter object to the cooler one.

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Define convection in the context of heat transfer.

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Convection is the transfer of heat through the movement of fluids (liquids or gases), where warmer areas of a fluid rise and cooler areas sink.

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Define radiation in the context of heat transfer.

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Radiation is the transfer of heat in the form of electromagnetic waves, which can occur in a vacuum.

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What is specific heat capacity?

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Specific heat capacity is the amount of heat required to raise the temperature of 1 gram of a substance by 1 degree Celsius.

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How do you calculate heat absorbed or released?

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Heat (Q) can be calculated using the formula Q = mcΔT, where m is mass, c is specific heat capacity, and ΔT is the change in temperature.

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What is an example of convection in everyday life?

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An example of convection is the heating of water in a pot on a stove, where hot water rises and cooler water sinks.

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What is an example of conduction in everyday life?

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An example of conduction is touching a hot metal spoon that has been in a pot of boiling water.

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What is an example of radiation in everyday life?

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An example of radiation is feeling warmth from the sun on your skin.