Mr. Kovall’s Neighborhood

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SHORT ANSWER

 

 1.  Why is mercury or alcohol, rather than water, used in thermometers?

 

 2.  What condition(s) make vapor condense?

 

 3.  Why does an alcohol rub have a cooling effect?

 

 4.  A glass of water has a soda straw placed in it. State and explain at least three reasons that explain why the water level in the straw is higher than the water

      level outside the straw.

 

 5.  Lead shot is formed by allowing molten lead fall through cool air.  Why?

 

 6.  What forms of energy are affected when a substance melts?   Explain why and how for each reason.

 

 7.  What is the BASIC difference between boiling and evaporation?

 

 8.  What forms of energy are affected when a substance regulates?   Explain.

 

 9.  A glass has a quantity of mercury in it. State at least three reasons that explain the level of  mercury in a piece of glass tubing in the glass tubing is lower

      than the mercury outside the glass tubing.

 

10.  Oil droplets in water take on a particular shape when they are mixed together by thoroughly shaking. Explain.

 

11.  What is the difference between the melting of water and the melting of plastic?   (Explain in terms of the concepts that we discussed in class.)