Which of the following is an example of heat transfer by radiation?

Practice Questions

Q1
Which of the following is an example of heat transfer by radiation?
  1. Heating a metal rod in a flame
  2. Sunlight warming the Earth
  3. Boiling water in a pot
  4. Heating air in a room

Questions & Step-by-Step Solutions

Which of the following is an example of heat transfer by radiation?
  • Step 1: Understand what heat transfer is. Heat transfer is how heat moves from one place to another.
  • Step 2: Learn about the three types of heat transfer: conduction, convection, and radiation.
  • Step 3: Know that conduction requires direct contact between materials, and convection involves the movement of fluids.
  • Step 4: Understand that radiation is the transfer of heat through electromagnetic waves and does not need a medium (like air or water).
  • Step 5: Identify examples of radiation. One common example is sunlight, which travels through space to warm the Earth.
  • Step 6: Conclude that sunlight warming the Earth is an example of heat transfer by radiation.
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