Heat & Heat Transfer Notes Recap

What is heat and how is it transferred from one place to another?

• Heat is a form of energy transferred by conduction, convection, or radiation.

• Heat is a type of matter that moves by diffusion.

• Heat is a force that acts at a distance.

• Heat is a chemical reaction that produces light.

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Look at the diagram showing the movement of red and gray circles. What process does this diagram represent in the context of heat transfer?

• Conduction

• Convection

• Radiation

• Evaporation

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What is the definition of kinetic energy?

• The energy of an object because of its position

• The energy of an object because of motion

• The energy stored in chemical bonds

• The energy released during a reaction

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What is heat? Fill in the blank: Heat is the flow of energy from _______ places to _______ places due to difference in temperature.

• warmer; cooler

• cooler; warmer

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In which direction does heat move?

• From camel to penguin

• From penguin to camel

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Fill in the blank: The skin on your hand will feel cold because ______ has left it.

• thermal energy

• light energy

• sound energy

• electrical energy

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What is conduction?

• Conduction is the transfer of heat through a solid material by direct contact of particles.

• Conduction is the transfer of heat through empty space without any medium.

• Conduction is the transfer of heat by the movement of fluids such as liquids or gases.

• Conduction is the process of converting heat energy into electrical energy.

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Conduction is:

• the transfer of heat through direct contact

• the transfer of heat through a fluid

• the transfer of heat by electromagnetic waves

• the process of a solid turning into a gas

The particles in good conductors are typically (a)   .

• close together
• randomly arranged
• not present
• far apart

Why do people use insulators?

• To allow heat and electricity to flow freely.
• To increase conductivity in materials.
• To prevent the transfer of heat

• To speed up the transfer of heat

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