Final answer:
Radiation is the method of heat transfer that occurs at the speed of light, as it involves electromagnetic waves that do not require a medium to move through. The correct answer is C) Radiation.
Step-by-step explanation:
The method of heat transfer that occurs at the speed of light is radiation. Unlike conduction, which requires physical contact, and convection, which involves the movement of fluid, radiation does not require a medium. It can transfer heat through electromagnetic waves such as infrared radiation, which travels at the speed of light.
Conduction is the transfer of heat through direct contact between materials. Convection is the transfer of heat by the physical movement of fluids (liquids or gases). Both conduction and convection require a medium to transfer heat. However, radiation can occur through the vacuum of space, as it involves the emission or absorption of electromagnetic waves. An example of radiation is the heat from the Sun warming the Earth.
Radiation is heat transfer through the emission or absorption of electromagnetic waves such as microwaves, infrared radiation, or visible light. An example of radiation is the warming of the Earth by the Sun. Another example is thermal radiation from the human body.
Conduction is heat transfer through physical contact, such as when a burner on a stove heats the bottom of a pan. Convection is heat transfer by the movement of mass, typically seen in forced-air furnaces and weather systems.