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Density & Buoyancy Test (Modified)

Multiple Choice
Identify the choice that best completes the statement or answers the question.
 

 1. 

The ____ is a unit of force.
a.
pascal
c.
newton
b.
atmosphere
 

 2. 

A cork is able to float on water because it is ____.
a.
equal in density to water
c.
small in size
b.
less dense than the water
 

 3. 

Which is the upward force on an swimmer that balances the downward force of gravity and keeps the swimmer from sinking?
a.
atmospheric pressure
c.
density
b.
buoyant force
 
 
nar001-1.jpg
Figure 5
 

 4. 

Use the information in Figure 5 to choose the gas that would be the best choice to use to fill a balloon that would float in air.
a.
carbon dioxide
c.
hydrogen
b.
nitrogen
 

 5. 

A box sinks when placed in water. What could you change about the box to make it float?
a.
density
c.
atmospheric pressure
b.
temperature
 

 6. 

Lam has three identical 1-L bottles. One is filled with water, another is filled with air, and the third bottle is filled with soil. What is the same about all three bottles?
a.
density
c.
mass
b.
volume
 

 7. 

Which of the following objects will float in water?
a.
a solid wooden cube with a volume of 15 cm3
b.
a solid lead cube with a volume of 1 cm3
c.
a solid stone cube with a volume of 9 cm3
 

Completion
Complete each statement.
 

 8. 

The mass of an apple would be measured in ____________________.
 

 

 9. 

The ____________________ of water at room temperature is 1 g/cm3.
 

 

 10. 

To calculate the density of a sample of matter, you must divide its ____________________ by its ____________________.
 

 

Matching
 
 
Match each item with the correct statement below.
a.
buoyant force
c.
fluid
b.
atmospheric pressure
 

 11. 

a description of gases and liquids
 

 12. 

101.3 kilopascals
 

 13. 

upward force of a liquid
 



 
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