Thermal Equilibrium and Heat

What causes hot and cold water to become the same temperature once they are combined?

• The heat moves from cooler temperature to warmer temperature.

• The energy of the hot water runs out.

• Heat (thermal) energy from the hot water is transferred to the cold water.

• Heat (thermal) energy causes the water to boil.

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NGSS.MS-PS1-4

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• convection

• radiation

• conduction

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Which pin or paperclip dropped off the metal rod first?

• The one closest to the Bunsen burner

• the one furthest from the Bunsen burner

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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.

Which of the boxes in the image are at thermal equilibrium? Choose all that apply.

• A

• B

• C

• D

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Sophia and Grace are conducting an experiment with four different containers. Which containers are at thermal equilibrium? Choose all that apply.

• A

• B

• C

• D

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NGSS.MS-PS1-4

James and Abigail observe thermal energy transfer until both substances reach the same temperature. This is called (a)   .

• thermal equilibrium

• kinetic energy

• thermal energy

• conductors

• insulators

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Thermal energy continues to transfer until both substances are the same temperature. This is called ​ (a)   .

• thermal equilibrium

• kinetic energy

• thermal energy

• conductors

• insulators

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NGSS.MS-PS1-4

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Benjamin and Abigail are conducting an experiment with four different boxes. Which of the boxes in the image are at thermal equilibrium? Choose all that apply.

• A

• B

• C

• D

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NGSS.MS-PS1-4

Nora and Mia observe thermal energy transfer until both substances reach the same temperature. This is called (a)   .

• thermal equilibrium

• kinetic energy

• thermal energy

• conductors

• insulators

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NGSS.MS-PS3-4