Watch the video then read the following article and examine the examples and then answer the questions below.
4 2 Arch Prin Ws Answers-1-1 by Divanny Correa on Scribd
A block of gold and a block of wood both have the same volume. If they are both submerged in water, which has the higher buoyant force?
2. A 100-cm3 block of lead that weighs 11 N is carefully submerged in water. One cm3 of water weighs 0.0098 N.
a. What volume of water does the lead displace?
b. How much does that volume of water weigh?
c. What is the buoyant force on the lead?
d. Will the lead block sink or float in the water?
3. The same 100-cm3 lead block is carefully submerged in a container of mercury. One cm3 of mercury weighs 0.13 N.
a. What volume of mercury is displaced?
b. How much does that volume of mercury weigh?
c. What is the buoyant force on the lead?
d. Will the lead block sink or float in the mercury?
4. According to problems 2 and 3, does an object’s density have anything to do with whether or not it will float in a particular liquid? Justify your answer.
5. Based on the table of densities, explain whether the object would float or sink in the following situations:
material density (g/ cm3)
gasoline 0.7
gold 19.3
lead 11.3
mercury 13.6
molasses 1.37
Paraffin(wax) 0.87
platinum 21.4
a. A block of solid paraffin (wax) in molasses. Answer - floats
b. A bar of gold in mercury. Answer - sink
c. A piece of platinum in gasoline. Answer - sinks
d. A block of paraffin in gasoline. Answer -sink
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