Thermal Energy Conductivity

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Thermal Energy Noun

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[thur-muhl en-er-jee]

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Thermal Energy

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The total kinetic energy of the moving atoms and molecules that make up a material or substance.

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Example: The image shows particles moving from a hot area to a cold area, illustrating thermal energy transfer.

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Mass Noun

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[mas]

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Mass

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The measure of the amount of matter in an object, which is a key factor in thermal energy calculations.

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Example: A balance scale shows the mass of an apple compared to a 1g weight, illustrating the measure of matter.

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Temperature Noun

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[tem-per-uh-cher]

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Temperature

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A measure of the average kinetic energy of the individual particles that make up a substance or material.

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Example: Particles in a hot area move faster than those in a cold area, showing temperature differences.

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Kinetic Energy Noun

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[ki-net-ik en-er-jee]

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Kinetic Energy

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The form of energy that an object or a particle possesses by reason of its continuous motion.

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Example: A cyclist moving down a hill gains kinetic energy due to motion.

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Specific Heat Noun

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[spuh-sif-ik heet]

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Specific Heat

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The amount of thermal energy required to raise the temperature of one kilogram of a substance by one degree Celsius.

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Example: Heating water and ice shows how different substances require different energy to change temperature.

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Joule Noun

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[jool]

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Joule

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The standard international unit of measurement for work and energy, representing the transfer of energy between systems.

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Example: Heating one end of a metal bar transfers thermal energy to the cooler end.

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Thermal Conductor Noun

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[thur-muhl kon-duhk-ter]

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Thermal Conductor

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A material that allows thermal energy, or heat, to flow through it easily with minimal resistance.

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Example: Heating one end of a metal bar transfers thermal energy to the cooler end.

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Thermal Insulator Noun

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[thur-muhl in-suh-ley-ter]

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Thermal Insulator

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A material that resists the flow of thermal energy, preventing heat from passing through it easily.

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Example: A vacuum flask uses a vacuum to prevent heat transfer, acting as a thermal insulator.

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Reflection Noun

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[ri-flek-shuhn]

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Reflection

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The process by which energy, such as light or heat, bounces off the surface of an object.

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Example: Light rays hit a smooth surface and bounce back, illustrating reflection.

Front

Absorption Noun

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[ab-sorp-shuhn]

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Absorption

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The process by which energy is taken into a material, rather than being reflected or transmitted through it.

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Example: The image shows how light can be absorbed, reflected, or transmitted through a material, illustrating absorption as energy taken in.