Particle Model of Heat Transfer (Conduction and Convection)

Which of the following defines conduction?

• Transfer of heat by the movement of fluid

• Transfer of heat through electromagnetic waves

• Transfer of heat through direct contact of particles

• Transfer of heat by the movement of particles in a circular pattern

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NGSS.MS-PS3-4

What is convection?

• Transfer of heat through electromagnetic waves

• Transfer of heat by the movement of particles in solids

• Transfer of heat by the movement of fluid particles

• Transfer of heat through vacuum

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NGSS.MS-PS3-3

How does the particle model explain convection currents in a fluid?

• Heated particles expand and rise, while cooler particles sink

• Particles vibrate in place and pass energy to neighboring particles

• Particles emit infrared radiation

• Particles move faster and collide more frequently

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NGSS.MS-PS1-4

NGSS.MS-PS3-4

Which scenario best illustrates conduction?

• Heat from a fireplace warming a room

• Boiling water where warmer water rises and cooler water sinks

• Holding one end of a metal rod while the other end is heated

• Sunlight warming the Earth

Tags

NGSS.MS-PS3-3

In which situation is convection most likely occurring?

• A metal spoon becoming hot from a pot of boiling water

• Warm air rising towards the ceiling and cool air sinking to the floor

• Feeling the warmth of the sun on your skin

• Heat from a light bulb warming nearby objects

What is the main cause of convection currents in fluids according to the particle model?

• Differences in particle size.

• Differences in particle color.

• Differences in temperature and density.

• Differences in particle shape.

Tags

NGSS.MS-ESS2-6

The picture shows an example of what?

• Convection

• Radiation

• Conduction

• Induction

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NGSS.MS-ESS2-6

Heat is the transfer of ________ between substances of different temperatures.

• atoms

• molecules

• energy

• cells

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-3

NGSS.MS-PS3-4

In which state of matter is conduction most effective and why?

• Solid, because particles are closely packed and can transfer energy quickly.

• Liquid, because particles are free to move around.

• Gas, because particles move very fast.

• Plasma, because particles are ionized.

How does the particle model explain the transfer of heat energy in a pot of boiling water?

• Heat is transferred from the bottom of the pot to the water through radiation.

• Heat is transferred through the water by conduction from the stove.

• Heat is transferred through the water by convection currents, where hot water rises and cooler water sinks.

• Heat is transferred by the water molecules changing state directly to gas.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4