Which heat transfer method occurs through electromagnetic waves and can operate in a vacuum?

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Multiple Choice

Which heat transfer method occurs through electromagnetic waves and can operate in a vacuum?

Radiation is the form of heat transfer that works with electromagnetic waves and can happen even in empty space. It doesn’t need particles to collide or a medium to move through, so heat from the Sun travels through the vacuum of space and warms Earth. The other modes rely on matter: conduction needs particles transferring energy through contact, and convection relies on fluid movement. Evaporation is a phase-change process that involves energy exchange but isn’t a wave-based transfer mechanism.

Radiation is the form of heat transfer that works with electromagnetic waves and can happen even in empty space. It doesn’t need particles to collide or a medium to move through, so heat from the Sun travels through the vacuum of space and warms Earth. The other modes rely on matter: conduction needs particles transferring energy through contact, and convection relies on fluid movement. Evaporation is a phase-change process that involves energy exchange but isn’t a wave-based transfer mechanism.

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