Wednesday, March 19, 2008

Can Newton's Laws be defied?

Forces have been a major topic of classroom discussion for us. This video is an example of how not all materials follow newtonian physics as Newton thought. By using dynamic research, we hope to find that unifying theory that links everything together. Watch the following video clip, and comment on why you think this particular non-newtonian fluid doesn't act as a liquid.

29 comments:

simoneaux said...

i think the substance is wierd i dont know why it doesnt act like a fluid

Rachell :) said...

Ooblek is a non-newtonian fluid that doesn't act like a liquid. It is made by corn starch and water. It is changed by the pressure added and the change in temperature. When it is placed in a bowl and you hit it hard,it acts like a solid. But when you put it in your hand, it flows like a liquid.

Anonymous said...

WHY DOES THE LADY TALK ABOUT DR. SUESS FOREVER? I DON'T KNOW WHY THE SUBSTANCE IS A LIQUID. IT SURE IS A MIND BOGGLING MYSTERY.

Anonymous said...

I FORGOT TO PUT MY NAME WHEN I ASKED ABOUT DR. SUESS.




ADAM

Anonymous said...

If you added more corn starch i think it would behave more like a solid and more water more like a liquid.I think it is able to have both properties because the corn starch is grouned. I would like to see it with a non-powder solid.

Anonymous said...

It doesn't act like a liquid because it is made with corn starch.

Skye Maxwell Fowler said...

Very good explanation Rachel! Pressure is the key to this unusual fluid. By applying a strong force, one can defy the properties of the liquid; however, if the force is too weak, the non-newtonian fluid responds differently.

Ms. Maxwell

Skye Maxwell Fowler said...

Adam, the woman in the video talks about Dr. Seuss because he wrote a book titled Batholomew and the Oobleck. We've experimented with oobleck in physical science, and this is where that idea originated. Literature plays a very important role in all contents.

Courtney said...

i do belive that temperatue has a lot to do with it.

T.Hunter#deuce-4 said...

I think it doesnt act as a liqiud because its truly a soquid, meaning its denser than water, but not as dense as most solids. It may look in the form of a liquid, but has properties of both.


Ya BOI#24!

Anonymous said...

Ooblek is a non newtonian fluid that is a "soquid":) Its hard.....yet soft/

emily

THE WOMAN CANNOT SAY BARTHOLEMEW AND THE OOBLEK

Nugent said...

Ooblek is a non-newtonian fluid because it changes its rate of flow by tempeture but mainly by the amount of force acted on it.

Anonymous said...

A liquid would simlply part if you hit it with pressure. By adding corn starch to the liquid, it caused it to react differentally to pressure, making it act like a solid when hit.

Anonymous said...

Forgot to put my name at the bottom of my last post.

~Dusty Savage

Skye Maxwell Fowler said...

I just wanted to let you guys know that "soquid" is not a scientific term. This term is meant to describe a substance that is 50% solid and 50% liquid. The term semisolid is the scientific term that is most similar in meaning.

Anonymous said...

Ooblek is a fluid that changes its viscosity by the force added to it or sometimes the temperature.
Emily Greene

Anonymous said...

i think ooblek is cool the way it acts like a solid and a liquid

Anonymous said...

hey max i really think that the ooblek is cool! i no u made it with 1 of ur classes but it wasnt ours! next time we get a chance can we do it?
love ya!
hannah giss

Anonymous said...

i think its cool how it acts like a solid and a liquid at the same time






Judge

Anonymous said...

it doesnt act like a liquid because when it is room temperature it is hard. when it touches the heat of your hand it flows as a liquid

-hayden

HaNnAh GiSs!!! said...

ooblek is consisted of water and corn starch. corn starch is a substance that has very wierd properties and so when you mix it with water it gives it a change that when u apply pressure it is a solid and when you let it run through your fingers it is a liquid.
hannah giss!!!! luv ya

Anonymous said...

ooblek is a non-newtonian fluid because you mix it with a solid and a liquid


levi

Anonymous said...

If you added more corn starch i think it would behave more like a solid.If you add more water it would behave more like a liquid.it has properties of a solid and a liquid so it would meet somewhere in the middle


kaleb

Anonymous said...

Ooblek is made by corn starch and water. It changes by the force added and when the temperature changes. When you hit the ooblek in the bowl it is a solid. When you leave it out in your hand it is a liquid. And when it is left out over night it evaporates the water and is left with only corn starch with coloring.


-Lesley.

Anonymous said...

TALK TALK. Be Quiet, and show us the experament already.

zach k

Matt Upshaw said...

it doesn't like a fluid because it has cornstarch which is a powder(solid) and water (liquid) it has more solid

Anonymous said...

It is made of both a solid and a liquid.

Zach K.

claibo said...

yes it can be defied. Newton said a solid is hard and has one defined shape but non-newtonian fluid defies this when picked up.

Anonymous said...

why is this mixture of green food coloring, corn starch and water a non-newtonian fluid. A newtonian fluid is one that changes it rate of flow based on heat applied. If this mixture of coloring, starch and water is heated, it should not flow faster as it is mostly starch.
Michael Foster