Identify the Described Heat-Transfer Mechanism - Practice 1

Conduction transfers energy through interactions in material without bulk flow.

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Conduction transfers energy through interactions in material without bulk flow. Convection involves moving fluid. Thermal radiation travels as electromagnetic waves and can cross a vacuum. Real situations can include several mechanisms; identify the stated one.

Worked example

A model says warm water carries energy as it circulates: convection. A Sun-to-Earth path across space illustrates radiation.

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An oxygen molecule, O2, contains two atoms but only one kind of element. Counting atoms and counting elements answer different questions.

Question 1 Energy travels through a stationary metal rod from its warmer end. Which mechanism is described? conduction convection bulk fluid transport

Question 2 Warm water rises and circulates, carrying energy. Which mechanism is described? radiation only conduction only convection

Question 3 Thermal energy crosses an evacuated gap as electromagnetic waves. Which mechanism is described? fluid circulation radiation convection

Question 4 Adjacent particles in a solid pass energy along without bulk flow. Which mechanism is described? conduction convection fluid circulation

Question 5 Moving warm air carries energy around a room. Which mechanism is described? conduction only no transfer convection

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