Transmission of Heat

What is the definition of convection?

• Transfer of heat through the movement of a solid
• Transfer of heat through the movement of a fluid
• Transfer of heat through the movement of a gas
• Transfer of heat through the movement of a vacuum

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

• convection
• condensation

• convection

• radiation

When you touch a metal spoon that has been sitting in a hot pot of soup, which method of heat transfer are you experiencing?

• Insulation
• Convection
• Conduction
• Radiation

Which material would be the best choice for making oven mitts to protect your hands from hot pots and pans?

• Cloth

• Metal

• Paper towels
• Plastic wrap

In a swimming pool, water near the surface is slightly warmer. The warm water rises because of

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Which of the following statements about convection currents is correct?

• Convection currents occur only in liquids.

• Convection currents occur due to the uneven heating of fluids.

• Convection currents occur only in solids.

• Convection currents occur only in gases.

In heat transfer, heat always flows from the _______________ substance to the _______________ substance.

• hotter temperature, colder temperature

• larger volume, smaller volume
• conductor, insulator
• solid, liquid

What is the primary method of heat transfer that warms the Earth's atmosphere?

• Sublimation
• Radiation
• Condensation
• Convection

What is the definition of CONDUCTION

•  hot liquid or air that  expands, becomes less dense, and rises or becomes more dense, and sinks.

• When heat is transferred from objects like rays of light or electromagnetically.

• When heat transfers through the heater or AC in your house.

• Conduction is the process of converting a solid into a liquid.

What is the meaning for the term Radiation?

• The process of converting energy into mass
• The movement of energy through a vacuum
• The process of converting mass into energy
• Emission of energy as electromagnetic waves or as moving subatomic particles