Mr. Z's  Introduction to Heat Unit:  Daily Internet Homework *                                     
 

 


What is heat?      Lesson Review

  1.  What happens to the vibration of the particles of matter when you add heat energy?

  2. What is the definition of heat?

  3. What is the definition of temperature?


What is Freezing/Boiling Point?  Lesson Review

  1.  At what temperature does water begin to freeze in degrees F?  In degrees C?

  2.  At what temperature does water begin to boil in degrees F?  In degrees C?

  3.  Do all liquids freeze at the same temperature?

  4.  Do all solids melt at the same temperature?

  5.  What is the differences between melting and freezing?

  6.  What is the difference between boiling and evaporation?

  7.  At what part of a liquid does evaporation usually occur?

  8.  What happens to a liquid when it reaches its boiling point?


What is Radiation?  Lesson Review        

  1.   Define radiation.

  2.   What machinery located in your kitchen cooks by radiation?

  3.  Explain how you can toast a marshmallow WITHOUT putting it directly in the flame?  

  4.  How do the bricks beneath a fire in your fireplace get warm?


What is Conduction?   Lesson Review    

  1.  Define conduction?

  2.  What is the difference between a conductor and an insulator?

  3.  Why does a metal spoon in a pot of hot pasta get hot?

  4.  Does a wooden spoon react the same way?  Explain.

  5.  How does heat travel by conduction?


What is Convection?   Lesson Review

  1.  Describe a convection current?

  2.  What happens to air when it is heated?  Why does it do that (in terms of density).

  3.  What happens to air as it is cooled? Why does it do that (in terms of density).

  4.  Describe the  three phases of heating as applied to a metal hot water radiator.

  5.  Why does smoke go up a chimney?