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24) Floating Freda, who can just barely float in fresh water, has a mass of 100 kg. Her volume<br />
is <strong>the</strong>refore about __________.<br />
A) 50 liters. B) 100 liters.<br />
C) 220 liters. D) none of <strong>the</strong> above<br />
25) An industrial container holds 200 N of water. The area of <strong>the</strong> inside bot<strong>to</strong>m of <strong>the</strong><br />
container is 2 square meters. What pressure does <strong>the</strong> water exert on <strong>the</strong> bot<strong>to</strong>m of <strong>the</strong><br />
container?<br />
A) 100 N per square meter B) 200 N per square meter<br />
C) 400 N per square meter D) 800 N per square meter<br />
<strong>Choose</strong> <strong>the</strong> <strong>best</strong> <strong>answer</strong> <strong>to</strong> <strong>each</strong> <strong>question</strong> <strong>and</strong> <strong>write</strong> <strong>the</strong> <strong>appropriate</strong> letter in <strong>the</strong> space provided.<br />
26) The pressure at <strong>the</strong> bot<strong>to</strong>m of a jug filled with water does NOT depend on <strong>the</strong><br />
__________.<br />
A) acceleration due <strong>to</strong> gravity B) density of water<br />
C) depth of <strong>the</strong> liquid D) surface area of <strong>the</strong> water<br />
27) Where is <strong>the</strong> pressure greater, one meter beneath <strong>the</strong> surface of Lake Michigan or one<br />
meter beneath <strong>the</strong> surface of a swimming pond?<br />
A) In Lake Michigan B) In <strong>the</strong> pond C) The same in both places<br />
28) When an ice cube in a glass of water melts, <strong>the</strong> water level __________.<br />
A) rises B) falls C) remains <strong>the</strong> same<br />
29) Two equal-sized buckets are filled <strong>to</strong> <strong>the</strong> <strong>to</strong>p with water. One of <strong>the</strong> buckets has a piece<br />
of wood floating in it, making its <strong>to</strong>tal weight __________.<br />
A) less than <strong>the</strong> weight of <strong>the</strong> o<strong>the</strong>r bucket<br />
B) equal <strong>to</strong> <strong>the</strong> weight of <strong>the</strong> o<strong>the</strong>r bucket<br />
C) more than <strong>the</strong> weight of <strong>the</strong> o<strong>the</strong>r bucket<br />
30) If you are st<strong>and</strong>ing on <strong>the</strong> moon <strong>and</strong> release a balloon filled with helium gas, <strong>the</strong> balloon<br />
will __________.<br />
A) rise B) fall C) nei<strong>the</strong>r rise nor fall<br />
31) The reason water can be pumped out of a well using an old-fashioned farm-type pump is<br />
that <strong>the</strong> __________.<br />
A) water level is very close <strong>to</strong> <strong>the</strong> pump.<br />
B) pump scoops up <strong>the</strong> water <strong>and</strong> lifts it <strong>to</strong> <strong>the</strong> <strong>to</strong>p.<br />
C) pump sucks <strong>the</strong> water up from <strong>the</strong> well.<br />
D) water is pushed <strong>to</strong> <strong>the</strong> surface by <strong>the</strong> atmosphere.<br />
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