Heat Transfer Notes

Multiple Choice

Which of the following best describes the difference between thermal energy and heat?

• Thermal energy is the total kinetic energy of particles, while heat is energy transferred due to temperature difference.

• Thermal energy is energy transferred from hot to cold, while heat is the total kinetic energy of particles.

• Thermal energy and heat are both the same and refer to the movement of particles.

• Thermal energy is only found in solids, while heat is found in liquids and gases.

Multiple Choice

Which direction does heat always move?

• From cold to hot

• From hot to cold

• In both directions equally

• It does not move

Fill in the Blank

What happens when you hold chocolate in your hand?

Open Ended

Explain why chocolate melts when you hold it in your hand, using the concept of heat transfer.

Multiple Choice

Which method of heat transfer is responsible for heating the kettle when placed on a stove?

• Convection

• Radiation

• Conduction

• Evaporation

Fill in the Blank

The transfer of heat by direct contact is called ___.

Multiple Select

Select all the correct statements about the three ways heat moves.

• Conduction is the transfer of heat by direct contact.

• Convection is the transfer of heat by the movement of a liquid or gas.

• Radiation is the transfer of heat in the form of waves.

• Conduction is the transfer of heat by the movement of a liquid.

Multiple Choice

Which method of heat transfer involves direct contact between objects?

• Conduction

• Convection

• Radiation

• Evaporation

Open Ended

Explain how conduction occurs in Earth's atmosphere and give an example from daily life.

Fill in the Blank

Fill in the blank: In convection, heat is transferred by the movement of a ___ or gas.

Multiple Choice

Which of the following statements about convection is correct?

• Convection involves the movement of liquids or gases.

• Convection occurs only in solids.

• Convection is the transfer of heat by direct contact.

• Convection does not occur in Earth's atmosphere.

Open Ended

Describe how convection causes land and sea breezes, using the diagrams provided.

Multiple Choice

Which method of heat transfer does not require direct contact or movement of matter?

• Radiation

• Conduction

• Convection

• Absorption

Multiple Choice

Which method of heat transfer allows the Sun's energy to reach the Earth's atmosphere?

• Conduction

• Convection

• Radiation

• Evaporation

Fill in the Blank

Transfer of heat by the movement of a liquid or gas is called ___.

Multiple Choice

Which of the following statements about heat transfer is correct?

• Conduction requires direct contact between substances.

• Convection occurs only in solids.

• Radiation cannot happen in a vacuum.

• Convection is the transfer of heat by electromagnetic waves.

Fill in the Blank

Heat moves from ___ to cold.

Open Ended

What are the 3 ways heat is transferred in Earth’s atmosphere?