Energy and Energy Transfer

The warm air from this heater creates a current when the warm air rises and the cold air sinks.

• conduction

• convection

• radiation

radiation

• transfer of thermal energy by contact of particles

• transfer of thermal energy by movement of particles within matter

• transfer of energy by electromagnetic waves

• temperature increases as altitude increases

You're holding hands with your best friend.  Your friend's hands are REALLY warm and yours are really cold.  After a few minutes, this has changed.  How might you explain what happened?

• The cold energy from your hand transferred to your friend's hand through conduction.

• The heat energy from your friend's hand transferred to your hand through conduction. 

• The cold energy from your hand transferred to your friend's hand through convection.

• The heat energy from your friend's hand transferred to your hand through convection.

What would be the effect on the particles if more heat is supplied to the system?

• They would slow down

• They would stop moving

• They would speed up

• There would be no effect

The heat from a hot burner to a pot is transferred by ______.

• convection

• insulation

• radiation

• conduction

Radiation

• A type of star

• The transfer of energy through space

• Speed in a given direction

Which of the following is an example of energy transfer through conduction?

• A) Sunlight warming your skin

• B) A metal spoon getting hot from a boiling pot

• C) Warm air rising to the ceiling

• D) A microwave heating food

What is the primary source of energy for the Earth's climate system?

• A) Geothermal energy

• B) Solar energy

• C) Wind energy

• D) Nuclear energy

How does energy transfer occur in a convection current?

• A) Through direct contact

• B) Through electromagnetic waves

• C) Through the movement of fluids

• D) Through sound waves

Which of the following best describes the process of radiation?

• A) Transfer of energy through direct contact

• B) Transfer of energy through electromagnetic waves

• C) Transfer of energy through the movement of fluids

• D) Transfer of energy through sound waves