Why things break more easily when its cold

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اشترك في: الأربعاء يوليو 20, 2005 4:29 pm

Why things break more easily when its cold

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Salam everyone

Today while I was searching the net to extract some information for my term papers, I found this article and thought you might like it... its really interesting

Here you go ..!!~


Why do things break more easily when they're extremely cold

It may not look like it, but everything is always moving, even solid rock. We're not necessarily talking about movement that you can see.


Matter, everything you can touch and see, is made of molecules. And they're always moving. The warmer something is, the faster its molecules are vibrating. The air molecules in a balloon are constantly jostling and bouncing off of each other.

Try this: Put an inflated balloon in the freezer for a while and it will shrink a little. The air molecules slow down. They don't jostle as wildly. So, they push on the inside of the balloon with a little less force. The balloon's rubber squeezes in a little bit. And the
balloon shrinks.

The air we breathe is a gas. The molecules in a glass of water are a liquid. But they're moving, too. Just that in a liquid, they're not moving as fast as they are in a gas. If the water gets cold enough, the molecules slow down even more and turn into a solid--ice.

As molecules slow down, they fit and lock together. Get a shoebox and load it with a few dozen marbles. If you shake the box, the marbles bounce off of each other like crazy. When you stop shaking, the marbles settle into a regular pattern. Now push down on one edge of your marble pattern and shake the box at the same time. The marbles hardly move. If you push or squeeze hard enough, the marbles pop out or fly apart. The
same thing happens with molecules.

Cold molecules are like squeezed marbles, only they're being squeezed in all directions at once. They're packed closer together and bouncing off of each other less than they do when they're warm. When you apply a force to a stack of cold molecules, they pop loose. As they vibrate, it's as though they move into each other's spaces or zones. When they slow down, when they're cold, they don't get near each other as often. So, the forces holding them together don't get as much of a chance to act. Without this interaction between molecules, they are more easily torn or broken apart. Brittle things break because cold slows their molecular vibration. It's that simple, or that complicated. Well really, it's just cool, er … cold.
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mohammed alhadwi
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Re: Why things break more easily when its cold

مشاركة بواسطة mohammed alhadwi »

الحوراء كتب:Salam everyone

Today while I was searching the net to extract some information for my term papers, I found this article and thought you might like it... its really interesting

Here you go ..!!~


Why do things break more easily when they're extremely cold

It may not look like it, but everything is always moving, even solid rock. We're not necessarily talking about movement that you can see.


Matter, everything you can touch and see, is made of molecules. And they're always moving. The warmer something is, the faster its molecules are vibrating. The air molecules in a balloon are constantly jostling and bouncing off of each other.

Try this: Put an inflated balloon in the freezer for a while and it will shrink a little. The air molecules slow down. They don't jostle as wildly. So, they push on the inside of the balloon with a little less force. The balloon's rubber squeezes in a little bit. And the
balloon shrinks.

The air we breathe is a gas. The molecules in a glass of water are a liquid. But they're moving, too. Just that in a liquid, they're not moving as fast as they are in a gas. If the water gets cold enough, the molecules slow down even more and turn into a solid--ice.

As molecules slow down, they fit and lock together. Get a shoebox and load it with a few dozen marbles. If you shake the box, the marbles bounce off of each other like crazy. When you stop shaking, the marbles settle into a regular pattern. Now push down on one edge of your marble pattern and shake the box at the same time. The marbles hardly move. If you push or squeeze hard enough, the marbles pop out or fly apart. The
same thing happens with molecules.

Cold molecules are like squeezed marbles, only they're being squeezed in all directions at once. They're packed closer together and bouncing off of each other less than they do when they're warm. When you apply a force to a stack of cold molecules, they pop loose. As they vibrate, it's as though they move into each other's spaces or zones. When they slow down, when they're cold, they don't get near each other as often. So, the forces holding them together don't get as much of a chance to act. Without this interaction between molecules, they are more easily torn or broken apart. Brittle things break because cold slows their molecular vibration. It's that simple, or that complicated. Well really, it's just cool, er … cold.
good >>
thank you>> alhawra2 :D

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