KIV: Thermal Energy Transfer

What is the primary way energy is transferred in solids?

• Through collisions of atoms

• Through electromagnetic waves

• By sound waves

• By the movement of fluids

What causes convection currents in fluids?

• Differences in density

• Magnetic fields

• Electric currents

• Sound waves

Which of the following is an example of convection?

• A microwave heating food

• A metal spoon heating up in a pot

• The sun warming the Earth

• Boiling water in a pot

How does the sun transfer energy to the Earth?

• By conduction

• Through electromagnetic waves

• By convection currents

• Through sound waves

What type of energy transfer is occurring when you feel warmth from a fire?

• Radiation

• Conduction

• Evaporation

• Convection