Exploring Heat Transfer: Conduction, Convection, and Radiation

What is required for conduction to occur?

• Molecular contact

• Density differences

• Open space

• Electromagnetic waves

Which material does conduction occur most effectively in?

• Solids

• Vacuums

• Liquids

• Gases

Why does heat rise during convection?

• Because it is directly heated

• Because the heated air expands and becomes less dense

• Due to electromagnetic waves

• Because of molecular contact

What is the key characteristic of radiation in heat transfer?

• It requires direct contact

• It occurs due to density differences

• It involves the movement of electromagnetic waves

• It can only happen in liquids

In the campfire example, which type of heat transfer is NOT directly involved in heating the pot?

• Radiation

• None, all are involved

• Convection

• Conduction