Note in Question #1 it is important that you fill in the blanks with your answers rather than just circling a and d. This is because the order of the answers is important.
Atmospheric pressure (in Question #2) is determined by the weight of the air overhead. Weight depends on the mass and on the strength of gravity.
In questions #10 and #11 it is OK to either fill in the blanks with the answer or to just circle the correct answer.
Each of the Extra Credit questions below is worth 5 pts. You can only earn up to 10 points extra credit, even if you answer all three questions correctly
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