Understanding Thermal Energy Transfer

What happens to the particles of creamer when added to coffee?

• The creamer particles increase in kinetic energy.

• The creamer particles decrease in temperature.

• The creamer particles remain unchanged.

• The creamer particles move faster than coffee particles.

What is the primary reason coffee cools down when creamer is added?

• The creamer absorbs all the heat from the coffee.

• Because of the increase in the coffee's kinetic energy.

• Due to the creamer's lower initial temperature.

• Through the decrease in kinetic energy of coffee particles.

How does conduction transfer thermal energy?

• Through electromagnetic waves.

• It does not require matter.

• By the movement of fluids.

• By direct contact between materials.

What role does the pot play in conduction on a stove?

• It radiates heat to the water.

• It prevents heat from escaping.

• It transfers heat to the water inside.

• It cools down the water.

In convection, how do particles in a liquid move?

• Faster particles sink, slower particles rise.

• All particles move at the same speed.

• Faster particles rise, slower particles sink.

• Particles do not move.

What initiates the cycle of convection in boiling water?

• Electromagnetic waves.

• Radiation from the stove.

• The cooling effect of the air.

• Kinetic energy transfer from the pot.

How does radiation differ from conduction and convection?

• It only occurs in liquids.

• It transfers heat through electromagnetic waves.

• It involves the movement of particles.

• It requires a medium to transfer heat.

Why can radiation transfer energy in a vacuum?

• Because it uses particles for transfer.

• Due to its reliance on direct contact.

• It transfers energy through electromagnetic waves.

• Because it requires a liquid medium.

Which method of thermal energy transfer does not require matter?

• Convection

• Conduction

• All require matter

• Radiation

What is a common theme in thermal energy transfer?

• Radiation is the most efficient method.

• Energy moves from cold to hot.

• Only solids can transfer energy.

• Energy always transfers from hot to cold.