True/False
Indicate whether the sentence or statement is true
or false.
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| 1. | A
wadded-up piece of aluminum foil would work as a diver.
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| 2. | Squeezing the bottle makes the diver float to the top.
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| 3. | The
size of the air pocket at the top of the bottle has no effect on the performance of the
diver.
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| 4. | Releasing the bottle makes the diver sink.
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| 5. | This
is impossible! A Cartesian diver that is closed at the bottom will NOT behave the same way as one
that is open on the bottom.
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| 6. | A
closed-end Cartesian diver will also respond to pressure the same way that an open-ended one will. In
other words, when you squeeze the bottle, the closed-end diver will also sink.
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| 7. | Increased pressure causes the volume of a gas sample to decrease.
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| 8. | If
you add mass to an object without changing its volume, the object’s density will
decrease.
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| 9. | Whether an object floats or sinks in a fluid depends on whether that object’s
density is less than or greater than the density of the fluid.
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| 10. | You
can decrease the density of an object by keeping the mass constant while decreasing the objects
volume.
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| 11. | A
candle that floats is tied to a paper clip. This would make an excellent Cartesian
diver.
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| 12. | As
pressure on the bottle is released, the air bubble inside the diver expands.
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| 13. | As
pressure on the bottle is increased, the air bubble inside the diver gets smaller.
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Multiple Choice
Identify the
letter of the choice that best completes the statement or answers the question.
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| 14. | When
you squeeze the bottle the water level inside the diver a. | goes
up. | b. | goes
down. | c. | stays the
same. | d. | none of the
above. | | | | | | | | |
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| 15. | When
you release the bottle the water level in the diver a. | goes
up. | b. | goes
down. | c. | stays the
same. | d. | none of the
above. | | | | | | | | |
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| 16. | To
determine the density of the Cartesian diver we would need to consider a. | mass &
color. | b. | mass &
length. | c. | mass &
size. | d. | mass &
volume. | | | | | | | | |
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| 17. | According to Boyle’s Law, the volume of a gas is directly related
to a. | the size of the
container. | c. | the type of
gas. | b. | the pressure
being applied to it. | d. | the shape of the
container. | | | | |
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| 18. | A
Cartesian diver is stuck on the bottom of a bottle filled with water, with not quite enough air to
get it to the top. Which of the following suggestions would work? a. | Shake the
bottle | c. | heat the
bottle | b. | Squeeze the bottle | d. | cool down the bottle | | | | |
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Matching
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| 19. | Which
illustration shows a diver with the greatest density?
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| 20. | Which
illustration shows a diver with the lowest density?
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| 21. | Which
illustration shows a diver with the most volume?
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| 22. | Which
illustration shows a diver with the least volume?
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| 23. | Which
illustration shows a bottle with the highest pressure?
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| 24. | Which
illustration shows a bottle with the lowest pressure?
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| 25. | Which
diver shows the best balance between pressure and density?
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