Heat Transfer

Front

Conduction Noun

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[kuhn-duhk-shuhn]

Back

Conduction

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The transfer of heat energy between objects or particles that are in direct contact with each other.

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Example: Heat moves from hot particles to cooler ones through direct contact.

Front

Convection Noun

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[kuhn-vek-shuhn]

Back

Convection

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The transfer of heat through the movement of a fluid, which is a substance that can flow.

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Example: Warm water rises and cool water sinks, creating a circular flow that transfers heat.

Front

Convection Current Noun

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[kuhn-vek-shuhn kur-uhnt]

Back

Convection Current

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The circular motion of a fluid caused by hotter, less dense fluid rising and cooler, denser fluid sinking.

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Example: Warm water rises while cool water sinks, creating a circular motion in the pot.

Front

Radiation Noun

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[rey-dee-ey-shuhn]

Back

Radiation

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The transfer of energy by electromagnetic waves, which is a form of energy that can travel through empty space.

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Example: Sun's energy travels through space to Earth as radiation.

Front

Transform Verb

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[trans-fawrm]

Back

Transform

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To change from one form to another, particularly when discussing the conversion between different types of energy.

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Example: Electricity flows into a bulb, transforming into light and heat energy, shown with arrows.

Front

Heat Noun

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[heet]

Back

Heat

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The transfer of thermal energy from a warmer substance or area to a cooler one.

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Example: Heat moves from the warmer red area to the cooler blue area, showing thermal energy transfer.

Front

Fluids Noun

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[floo-idz]

Back

Fluids

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Substances, including liquids and gases, that have no fixed shape and are able to flow from place to place.

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Example: The image shows how heat causes fluid movement in convection, illustrating warm and cool molecules circulating.

Front

Law of Conservation of Energy Noun

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[law uv kon-ser-vey-shuhn uv en-er-jee]

Back

Law of Conservation of Energy

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The scientific principle stating that energy cannot be created or destroyed, only transferred or transformed from one form to another.

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Example: Energy transfers from one sphere to another, showing energy conservation.

Front

Thermal Energy Noun

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[thur-muhl en-er-jee]

Back

Thermal Energy

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The total internal energy of an object due to the kinetic energy of its atoms and molecules.

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Example: Particles in a hot area move faster, transferring thermal energy to a cooler area.

Front

Mechanical Energy Noun

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[muh-kan-i-kuhl en-er-jee]

Back

Mechanical Energy

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The energy associated with the motion and position of an object, combining both its kinetic and potential energy.

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Example: A ball on a slope illustrates mechanical energy with potential and kinetic energy.