L02 - Heat Transfer Review Question

What is the primary focus of thermodynamics?

• Rate of heat transfer

• Amount of heat transfer

• Temperature difference

• Heat capacity

Which mode of heat transfer involves the movement of energetic particles?

• Insulation

• Convection

• Radiation

• Conduction

What is the driving force for heat transfer?

• Density difference

• Pressure difference

• Temperature difference

• Volume difference

Which of the following is NOT a mode of heat transfer?

• Conduction

• Convection

• Radiation

• Insulation

What happens to the particles in a liquid when heated?

• They become denser

• They spread out and become less dense

• They remain unchanged

• They sink

What is the thermal conductivity of a material?

• Its ability to store heat

• Its ability to conduct heat

• Its ability to insulate

• Its ability to radiate heat

What is the primary mechanism of heat transfer in solids?

• Radiation

• Conduction

• Diffusion

• Convection

Which of the following best describes convection?

• Transfer of heat through solid materials

• Transfer of heat through electromagnetic waves

• Transfer of heat through direct contact

• Transfer of heat through fluid motion

What is the Stefan–Boltzmann law related to?

• Radiation

• Convection

• Conduction

• Insulation

What is the effect of a temperature gradient on heat transfer?

• It decreases the rate of heat transfer

• It has no effect

• It increases the rate of heat transfer

• It reverses the direction of heat transfer