Thermal Energy Transfers

What is conduction?

• Transfer of heat or electricity through a substance or material

• The process of converting electricity into heat

• The process of converting heat into electricity

• The process of transferring heat or electricity through a vacuum

Which of the following is an example of conduction?

• Touching a hot stove

• Watching a movie

• Listening to music

• Holding a cold drink

What is convection?

• Transfer of heat through the movement of a fluid

• Transfer of heat through conduction

• Transfer of heat through radiation

• Transfer of heat through the movement of a solid

Which of the following is an example of convection?

• Boiling water in a pot

• Melting ice in a glass

• Lightning during a thunderstorm

• Baking cookies in an oven

What is radiation?

• The emission of sound waves

• The process of converting matter into energy

• The emission of energy as electromagnetic waves or as moving subatomic particles

• The process of converting energy into matter

Which of the following is an example of radiation?

• Sound waves

• Visible light

• X-rays

• Microwaves

Which of the following materials is a good insulator?

• metal

• rubber

• glass

• wood

Which of the following materials is a good conductor?

• Wood

• Plastic

• Rubber

• Metals

What is thermal conductivity?

• The property of a material to conduct electricity

• The property of a material to conduct heat

• The property of a material to conduct sound

• The property of a material to conduct light

Which of the following materials has high thermal conductivity?

• plastic

• wood

• metal

• glass