 |
|
|
04-19-2006, 08:46 AM
|
|
Junior Member
|
|
 |
 |
Join Date: Apr 2006
Location: South Carolina
Posts: 5
Rep Power: 14
|
|
Ice Friction
I need some help with ideas for my Science Project.
My question and hypothesis are something to the effect of this:
Question: Why is friction on ice so low?
Hypothesis: A thin film of liquid water sits on the surface of the ice not allowing the ice and the other surface to rub directly together.
Now I'm trying to think of different ideas for things I could do for my project and I think I have a few but I thought I might get some more good ideas here.
__________________
"He must become greater; I must become less." John 3:30
~I'm fallin' on my knees, offering all of me. Jesus you're all this heart is living for.~
"Because your love is better than life, my lips will glorify you." - Psalm 63:3
matthew 28:19-20
|
04-20-2006, 10:13 AM
|
 |
Senior Mentor (Leader, Team A)
|
|
|
|
Join Date: Oct 2005
Location: New York, NEW YORK!!!
Posts: 435
Rep Power: 25
|
|
I think that water layer is too hard to test... My hypothesis would be that ice is like a crystal when it freezes, and I guess it's in somewhat of a cubical shape, which creates a small surface. I don't think it's the water, cause at skating rinks, they often remove the top layer of ice periodically. But I don't understand how you can test that... Perhaps you can ask what is the effect of having a layer of water... You can have a single ramp, and slide an object off a ramp unto the ice and measure how far it goes to measure the amount of friction. Then use the same ramp with ice covered with water. Just ideas...
Good luck!
__________________
God grant me the serenity to accept things I cannot change, the courage to change the things I could, and the wisdom to know the difference.
-Serenity Prayer
|
04-21-2006, 03:26 PM
|
 |
Mad Scientist
Expert Contributor
|
|
|
|
Join Date: Jul 2005
Location: CyberSpace
Posts: 701
Rep Power: 10
|
|
This is an interesting science project
I'm sticking this thread for the others to see 
__________________
e=mc2
|
04-21-2006, 03:28 PM
|
|
Senior Mentor (Leader, Team A)
|
|
|
|
Join Date: Oct 2005
Location: New York, NEW YORK!!!
Posts: 435
Rep Power: 25
|
|
Quote:
|
Originally Posted by Mad Scientist
I'm sticking this thread for the others to see |
What does sticking a thread mean?
__________________
God grant me the serenity to accept things I cannot change, the courage to change the things I could, and the wisdom to know the difference.
-Serenity Prayer
|
04-21-2006, 08:39 PM
|
 |
Senior Mentor (Team D)
|
|
|
|
Join Date: Sep 2005
Location: The Mad Lab
Posts: 339
Rep Power: 21
|
|
A sticky thread is one which always stays as the first thread in it's section
__________________
///\\\
(@ @)
+---oOO----(_)---Ooo-----+
The Newtons and friends were taking tea
Beneath the boughs of an apple tree,
When a falling fruit landed on the
Head of the head of the family.
Mrs. Newton cried, 'Well deary me!
That could've caused an injury'.
But clever Isaac alone could see,
The situation's true gravity.
|
04-25-2006, 04:16 PM
|
 |
Trainee Mentor (Team D)
Regular Contributor
|
|
|
|
Join Date: Dec 2005
Location: toronto
Posts: 39
Rep Power: 15
|
|
ice has such low resistance because it melts under pressure such as a skate. thats why a skates blade is so skinny, in order to have the most weight on the least amount of space. water molucules are weird because with almost every substance in the world, if the molucules are far apart, its a gas, medium is liquid, and close is solid. but water is the 1 exception. far is a gas, medium is a solid(ice) and close is a liquid. thats why when u put pressure on ice, it forces the molucules close toghether, therefor it becomes a liquid. cool huh?
__________________
.o.
(""")
\=/
[o]
[o]
[o]
( |^| )
_ _ (\_)u(_/) _ _
(o)!!!_`~-.;}\\X//{;.-~`_!!!(o)
`~-{_/>(O)<\_}-~`
)()(
/ || \
\ || /
)||(
| || |
| || |
| || |
)||(
| || |
| || |
) || (
| || |
| || |
( || )
\ || /
\||/
''
<~-=-~-=-~-=-~>
|
05-04-2006, 06:22 AM
|
|
Junior Member
|
|
|
|
Join Date: Apr 2006
Location: South Carolina
Posts: 5
Rep Power: 14
|
|
Thank's for the help and thanks for sticking this thread. 
dreamerofeternity- Thank you! You helped me out a lot! I was definitely stuck before but you gave me some great ideas! Thanks! 
__________________
"He must become greater; I must become less." John 3:30
~I'm fallin' on my knees, offering all of me. Jesus you're all this heart is living for.~
"Because your love is better than life, my lips will glorify you." - Psalm 63:3
matthew 28:19-20
|
05-08-2006, 06:14 PM
|
|
Junior Member
|
|
|
|
Join Date: Apr 2006
Location: South Carolina
Posts: 5
Rep Power: 14
|
|
So now my question and hypothesis are something to effect of these...
Question:
How does a thin layer of water on an ice surface effect the speed of an object traveling across the ice?
Hypothesis
My hypothesis states that a thin film of water on the ice will increase the speed of an object traveling across the ice.
__________________
"He must become greater; I must become less." John 3:30
~I'm fallin' on my knees, offering all of me. Jesus you're all this heart is living for.~
"Because your love is better than life, my lips will glorify you." - Psalm 63:3
matthew 28:19-20
|
05-09-2006, 07:31 AM
|
|
Junior Member
|
|
|
|
Join Date: Apr 2006
Location: South Carolina
Posts: 5
Rep Power: 14
|
|
Help!
Ok, I need some help! ASAP!
When I did my experiment my hypothesis was proven wrong.
I made a ramp and slid different objects down the ramp onto the ice. I meausred how far the object traveled. I then poured a measured amount of water on the ice and re-did the procedure.
All but one of the objects traveled further before there was water on the ice.
I'm having a hard time finding information for my research paper. If anyone has ANY input please help me out and reply asap! Thanks!
__________________
"He must become greater; I must become less." John 3:30
~I'm fallin' on my knees, offering all of me. Jesus you're all this heart is living for.~
"Because your love is better than life, my lips will glorify you." - Psalm 63:3
matthew 28:19-20
|
05-09-2006, 11:49 AM
|
|
Trainee Mentor (Team D)
Regular Contributor
|
|
|
|
Join Date: Dec 2005
Location: toronto
Posts: 39
Rep Power: 15
|
|
maybe the water froze?
__________________
.o.
(""")
\=/
[o]
[o]
[o]
( |^| )
_ _ (\_)u(_/) _ _
(o)!!!_`~-.;}\\X//{;.-~`_!!!(o)
`~-{_/>(O)<\_}-~`
)()(
/ || \
\ || /
)||(
| || |
| || |
| || |
)||(
| || |
| || |
) || (
| || |
| || |
( || )
\ || /
\||/
''
<~-=-~-=-~-=-~>
|
| Thread Tools |
|
|
| Display Modes |
 Linear Mode
|
Posting Rules
|
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts
HTML code is Off
|
|
|
|
| 
|
Coach
Links From-our-Editor
Tell-a-Friend
Encyclopedia
Dictionary
