Heat Transfer Methods

Give an example of conduction.

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• A fan blowing air in a room

• Sunlight warming your skin

• Ice melting in a warm drink

What is heat transfer?

• The movement of thermal energy from a hotter object to a colder object.

• The process of converting thermal energy into mechanical energy.

• The transfer of energy through electromagnetic waves.

• The circulation of air in a closed environment.

Give an example of convection.

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• Heating a metal rod in a flame

• Ice melting in a warm room

• A rock sitting in the sun

Define convection.

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• The process of heat transfer through direct contact between materials.

• The transfer of heat through electromagnetic waves.

• The process of heat transfer that occurs in solids only.

What is a lava lamp an example of?

• Convection, as the heated wax rises and cools, then sinks.

• Radiation, as the light bulb heats the wax directly.

• Conduction, as the heat transfers through the glass.

• Evaporation, as the wax turns into vapor.

Give an example of radiation.

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• X-rays

• Magnetic resonance imaging (MRI)

• Blood tests

What are the three main methods of heat transfer?

• Conduction, Convection, and Radiation

• Conduction, Convection, and Insulation

• Conduction, Radiation, and Absorption

• Convection, Radiation, and Reflection

Define conduction.

• The transfer of heat through direct contact between materials.

• The movement of heat through fluids by the circulation of currents.

• The process of heat transfer through electromagnetic waves.

• The transfer of heat from a warmer object to a cooler object without direct contact.

What happens to particles in a gas when heated?

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• They slow down and come closer together.

• They remain stationary and unchanged.

• They condense into a liquid.

Define radiation.

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• A method of cooking food using high temperatures.

• A type of sound wave used in communication.

• The process of converting light into electricity.