Physics Midterm

3. What Greek mathematician and physicist discovered if the crown of King Hiero II was made of pure gold?
6. This is a metric unit of length.
7. What does the M stand for in the equation D=M/V
11. What allows a water skeeter to be able to walk on water (2 words)?
13. As you go deeper in a column of water, _____ increases.
14. You have 20 mL of water (Density 1 g/mL) and 10 mL of gasoline (Density 0.72 g/mL)Which liquid will float on top of the other?
16. If you have 10 mL of water, what will the mass be in grams?
17. What force causes boats to float?

1. Normally, steel sinks in water. If you change the amount of water it ________ by changing its shape, you can cause it to float.
2. If you put an object into a cup of water and it sinks, then you know its density is ____Question2____ than _Question15___in g/mL.
4. Why do you need to pop your ears at the bottom of a swimming pool? It is due to a change in_______________ as you get deeper in the pool.
5. What does the D stand for in the equation D=M/V ?
8. This is a metric unit of mass.
9. If you place a pure gold crown, that has a mass of 1930 grams, into water, a _____ mL will be displaced. (Hint: the density of gold is 19.3 grams/mL.)
10. What does the V stand for in the equation D=M/V
12. If pressure is equal, water always finds its ________.
14. This is a unit of volume used in the USA (not metric).
15. If you put an object into a cup of water and it sinks, then you know its density is ___Question2_____ than _Question15___in g/mL.