Heat Transfer (Conduction, Convection, Radiation)

What are the three ways that thermal energy can be transferred?

• Conduction, convection, and radiation

• Insulation, convection, and radiation

• Conduction, convection, and reflection

• Insulation, convection, and reflection

How is heat transferred by conduction?

• Through direct contact

• Through the movement of fluids

• Through electromagnetic waves

• Through the reflection of energy

Which materials are the best thermal conductors?

• Metals

• Plastics

• Wood

• Fiberglass

What is convection?

• The transfer of thermal energy by collisions between particles

• The transfer of thermal energy in a fluid by the movement of warmer and cooler fluids

• The transfer of energy by electromagnetic waves

• The transfer of thermal energy through direct contact

How does convection differ from conduction?

• Convection transfers thermal energy by moving particles, while conduction transfers thermal energy through direct contact

• Convection transfers thermal energy through direct contact, while conduction transfers thermal energy by moving particles

• Convection transfers thermal energy through electromagnetic waves, while conduction transfers thermal energy by collisions between particles

• Convection transfers thermal energy by collisions between particles, while conduction transfers thermal energy through electromagnetic waves

How is heat transferred through space?

• By conduction

• By convection

• By radiation

• By reflection

What happens when radiation strikes a material?

• The material absorbs the energy

• The material reflects the energy

• The material transmits the energy

• All of the above

Which materials are good thermal insulators?

• Metals

• Plastics

• Wood

• Fiberglass

How does insulation help in buildings?

• It reduces the flow of heat between the building and the surrounding air

• It increases the flow of heat between the building and the surrounding air

• It reflects radiant energy away from the building

• It absorbs radiant energy and converts it into thermal energy

How does a thermos bottle work?

• It conducts heat from the liquid to the outer surface

• It convects heat from the liquid to the outer surface

• It reflects radiant energy away from the liquid

• It reduces the flow of heat into and out of the liquid