Thermal Energy Transfers

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What is thermal energy?

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Thermal energy is the energy that comes from the temperature of matter. It is the total kinetic energy of the particles in an object.

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What is conduction?

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Conduction is the transfer of heat through direct contact between materials. It occurs when two objects at different temperatures touch each other.

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What is radiation?

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Radiation is the transfer of heat in the form of electromagnetic waves. It does not require a medium to travel through, meaning it can occur in a vacuum.

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What is convection?

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Convection is the transfer of heat through the movement of fluids (liquids or gases). It occurs when warmer areas of a liquid or gas rise and cooler areas sink.

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How does conduction occur in everyday life?

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An example of conduction is when a metal spoon is placed in a hot cup of coffee, and the heat from the coffee transfers to the spoon.

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How does radiation occur in everyday life?

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An example of radiation is feeling the warmth of the sun on your skin, even when you are not in direct contact with it.

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How does convection occur in everyday life?

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An example of convection is the way warm air rises in a room, causing cooler air to move in and create a circulation pattern.

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What is the role of thermal energy in weather patterns?

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Thermal energy from the sun heats the Earth's surface, causing air to warm and rise, which contributes to wind and weather patterns.

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What happens to air when it is heated?

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When air is heated, it expands, becomes less dense, and rises, leading to convection currents.

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What is an example of conduction in cooking?

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An example of conduction in cooking is when a frying pan heats up on a stove, transferring heat to the food inside.