Heat and Thermodynamics

Convection

• The transfer of thermal energy through liquids and gases

• The transfer of thermal energy through solids

• The transfer of thermal energy as electromagnetic waves

Radiation

• The transfer of thermal energy as electromagnetic waves

• The transfer of thermal energy through solids

• The transfer of thermal energy through liquids and gases

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What are examples that show heat moving from cold to hot?

• refrigerator

• freezer

• it's impossible

• the refrigerator and freezer

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Which of the following is an example of convection?

• hair dryer is drying up your hair.

• When the AC or heater changes the temperature.

• When a car engine turns hot after being turned on.

• When you are making soup and the water is rising and lowering.

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Walking on the warm sand sand with your bare feet demonstrates this type of heat transfer. 

• conduction

• convection

• radiation

Which statement is true about the ENTROPY?

• Entropy refers to DISORDER, the unusable energy that escapes a system.

• Entropy refers to the balance of temperature among two or more systems.

• Entropy refers to the average kinetic energy of the molecules.

• Entropy refers to the inability to destroy or create energy. 

Which is an example of decreasing entropy in a closed system?

• Boiling water

• Freezing water

• Cells in a body coming together

• Ice melting

In which of the following systems is entropy increasing?

• Putting together a puzzle

• Putting books on a shelf

• Breaking a plate

• Filling a jar of salt

energy that is transferred between objects due to  temperature difference between those objects.

• temperature

• thermal energy

• heat

• solar collector

• convection

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NGSS.MS-PS3-4

transfer of thermal energy by collisions between the particles that make up matter.

• convection

• radiation

• 1st law of thermodynamics

• 2nd law of thermodynamic

• conduction

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