Exploring Thermal Energy Transfer Methods

What is the direction of thermal energy transfer?

• It depends on the material

• Equally in both directions

• From a hotter object to a colder object

• From a colder object to a hotter object

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Which of the following is NOT a method of thermal energy transfer?

• Diffusion

• Conduction

• Convection

• Radiation

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Why do metals conduct heat better than other materials?

• They have a higher density

• They are generally colder

• Their atoms are loosely packed

• They have free electrons that move around

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NGSS.MS-PS3-3

In which state of matter does conduction occur the fastest?

• Solids

• Liquids

• Gases

• Plasma

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NGSS.MS-PS3-3

What causes hot air to rise in a convection current?

• It becomes more dense

• It gains more mass

• It becomes less dense

• It loses kinetic energy

Which of the following is an example of convection in nature?

• Warm water rising at the equator

• Heat transfer in a metal rod

• Heat from the sun reaching the earth

• Heat transfer in a vacuum

What type of waves are involved in radiation?

• Water waves

• Electromagnetic waves

• Mechanical waves

• Sound waves

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Which form of radiation is most important for transferring heat energy?

• Infrared light

• X-rays

• Ultraviolet light

• Gamma rays

How does a thermos prevent heat transfer through conduction?

• By using a shiny lining

• By using a metal lining

• By sealing the cap

• By creating a vacuum

What is the primary purpose of the shiny lining inside a thermos?

• To prevent convection

• To absorb heat

• To prevent conduction

• To reflect radiation

Tags

NGSS.MS-PS3-3