Heat, Temperature, and Energy | Discovery Education

Heat, Temperature, and Energy | Discovery Education 

 

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  1. 00:00:27 

    01:34 

     ____________________________ 


  2. 00:00:27 

    01:34 

     ____________________________ 


  3. 00:00:27 

    01:34 

     ____________________________ 


  4. 00:02:48 

    What is the internal energy of matter called?

     

    • chemical energy

       

    • mechanical energy

       

    • sound energy

       

    • thermal energy

       

  5. 00:03:18 

    The flow of thermal energy from one place to another is called __________.

     

    • heat

       

    • temperature

       

    • matter

       

    • cool

       

  6. 00:03:33 

    How does heat always flow?

     

    • It flows from something cooler to something warmer.

       

    • It flows from something warmer to something cooler.

       

    • It flows from something warmer to something hotter.

       

    • It flows from something cooler to something cold.

       

  7. 00:04:37 

    What happens to the molecules in something when it is heated?

     

    • They slow down.

       

    • They disappear.

       

    • They stay the same.

       

    • They speed up.

       

  8. 00:05:38 

    As the experiment with the ring and ball shows, what happens when most substances are heated and cooled?

     

    • They expand (get larger) when heated and contract (get smaller) when cooled.

       

    • They expand (get larger) when cooled and contract (get smaller) when heated.

       

  9. 00:08:03 

    __________________ is a measure of the speed with which the molecules in a substance are, on average, moving. 

     

    • Heat

       

    • Temperature

       

    • Calories

       

    • Weight

       

  10. 00:09:47 

    Which has more thermal energy - heat?

     

    • A candle

       

    • A radiator

       

  11. 00:12:34 

    How is heat transferred through a solid?

     

    • Conduction

       

    • Radiation

       

    • Convection

       

    • Evaporation

       

  12. 00:14:15 

    Which of these is a good conductor of thermal energy (heat)?

     

    • wood

       

    • metals

       

    • plastic

       

    • fiberglass

       

  13. 00:14:26 

    Which of these is a good insulator of thermal energy (heat)?

     

    • steel

       

    • copper

       

    • plastic

       

    • aluminum

       

  14. 00:16:00 

    How is heat transferred in liquids and gases? As gas or liquid is heated, its molecules move farther apart and it becomes less dense; as it becomes less dense, it rises; when it cools, it becomes more dense and sinks. This is called________________.

     

    • conduction

       

    • radiation

       

    • evaporation

       

    • convection

       

  15. 00:16:38 

    The main source of heat energy on earth is the  .

     

    • sun, Sun, the sun, the Sun, sun., Sun., the sun., the Sun. 

  16. 00:17:57 

    Heat that is transferred with electromagnetic waves is called __________.

     

    • conduction

       

    • radiation

       

    • evaporation

       

    • convection

       

  17. 00:19:01 

    What absorbs more radiant heat?

     

    • White materials

       

    • Black materials

       

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