Question

match each type of thermal energy transfer with its correct definition. (1 point)
radiation
convection
conduction
thermal energy transfer in fluids through rising and sinking heated particles
energy transfer through light waves without needing a medium
heat transfer when particles directly touch each other

Explanation:

• Radiation: Energy transfer through light waves (electromagnetic radiation) doesn’t need a medium (like how the Sun’s heat reaches Earth through space). So Radiation matches "Energy transfer through light waves without needing a medium".
• Convection: Occurs in fluids (liquids or gases). Heated fluid particles become less dense, rise, and cooler, denser particles sink, creating a current. So Convection matches "Thermal energy transfer in fluids through rising and sinking heated particles".
• Conduction: Requires direct contact between particles (e.g., a spoon getting hot when in a hot soup as heat moves from soup to spoon through particle contact). So Conduction matches "Heat transfer when particles directly touch each other".

Answer:

• Radiation: Energy transfer through light waves without needing a medium
• Convection: Thermal energy transfer in fluids through rising and sinking heated particles
• Conduction: Heat transfer when particles directly touch each other