Dry Ice VS Ice The Project My question Out of ice and dry ice which one has less friction My hypothesis dry ice will have less friction because it is a solidified gas making it easier for it to glide whereas ice is a solid liquid which is heavier ID: 134816
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Slide1Slide2
The Wet and Dry Mystery
Dry Ice VS. Ice Slide3
The Project
My question: Out of ice and dry ice, which one has less friction?
My hypothesis: dry ice will have less friction because it is a solidified gas, making it easier for it to glide whereas ice is a solid liquid, which is heavier.Slide4
The Process
My experiment was to, using a device I built, push both ice and dry ice across two different surfaces multiple times to get
clear
results.
Also, I flicked some dry ice down the hallway to see what would happen.
All variables HAD to be covered, like making sure the pieces were the same mass and had the same surface area. However, results may not be 100%
precise.Slide5
Ice MassSlide6
Dry
I
ce MassSlide7
Ice On Smooth StoneSlide8
Dry Ice
On Smooth StoneSlide9
Ice on WoodSlide10
Dry Ice
on WoodSlide11
Hall slide (
D
ry Ice)Slide12
Results
I found that it was a tie between ice and dry ice, as seen in the videos, dry ice smoked ice on granite but was sourly defeated when it came to wood.
Although this is true, during dry ice’s win it went so far that it went of our testing surface, however during its downfall, it was beaten by only a few inches.
surface
Ice
Dry ice
Granite countertop
12
in.
> 36 in.
plywood
10 in.
3.5 in.Slide13
Theories
Dry ice won first for the obvious reason, a gas is less dense than a liquid, and density is a key variable of friction.
In the case of wood though, the gas went into the grooves of the wood, meaning the cushion of gas was gone and there was more friction. When the ice slid across the grooves, the melting ice created fillers for them and was able to slide a few inches more, but this still allowed friction to take its toll every time it hit a flat area.Slide14
Conclusion
At the end, on surfaces that are smooth enough to keep sublimating gas out, this enabled the cushion allowing dry ice to smoke ice however, credit should also be given to ice because it won under some circumstances.
This being said, my hypothesis
was partially
correct.