Heat transfer between solids that are touching.

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Study for the Georgia High School Physical Science Test. Prepare with flashcards and multiple-choice questions, detailed hints and explanations included. Get ready for your exam!

Multiple Choice

Heat transfer between solids that are touching.

Explanation:
Heat transfer between solids that are touching is conduction. When a hotter solid contacts a cooler one, energy moves from the hotter particles to the cooler ones by direct contact, through collisions and interactions. In metals, free electrons also carry energy quickly from the warm side to the cooler side, speeding up conduction. Convection would involve moving fluids, not solids in contact, so it’s not the right description here. Radiation transfers heat through electromagnetic waves and can occur without touching, and reflection isn’t a heat transfer mechanism at all.

Heat transfer between solids that are touching is conduction. When a hotter solid contacts a cooler one, energy moves from the hotter particles to the cooler ones by direct contact, through collisions and interactions. In metals, free electrons also carry energy quickly from the warm side to the cooler side, speeding up conduction. Convection would involve moving fluids, not solids in contact, so it’s not the right description here. Radiation transfers heat through electromagnetic waves and can occur without touching, and reflection isn’t a heat transfer mechanism at all.

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