All materials expand when heated. Most contract when cooled. Water is an exception . Metals generally contract when cooled at different rates,determined by coefficient of expansion. Some metals used in type setting expand when cooled. There is a new metallic substance developed by NASA which when compacted and released will pop back into its original shape.
What do we mean by shrink? They all basically contract. The answer regarding mercury in a thermometer is a good example of shrinking on cooling.
2006-10-07 13:24:14
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answer #1
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answered by science teacher 7
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I think all metals expand or contract with extreme variations of temperature. I know that a black bird jet, made of titanium, heats up so much from the friction of breaking through the air that it can actually flex up to a few inches. The expansion and contraction however is so minute it can hardly even be measured in most cases. Don't know a specific metal that shrinks tho. sorry i can't help
2006-10-07 14:16:37
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answer #2
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answered by csar3742 2
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All metals shrink a tiny amount as they get colder. (coefficient of linear expansion)
Liquid metals shrink too as they cool. This is how a mercury thermometer works
2006-10-07 14:13:18
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answer #3
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answered by amania_r 7
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There is a metal alloy called nitinol developed by NASA, which has the property of being able to expand back into its original shape after being crushed to a small shape, once it is heated. They might have something that does the opposite.
2006-10-07 14:25:37
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answer #4
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answered by cdf-rom 7
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Every thing shrinks when it gets cold except water.
2006-10-07 14:14:24
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answer #5
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answered by samssculptures 5
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I've neaver heard of a metal that shrinks. Does it exist? Who asked you to find the answer to a question like this? Anyway thanks for the 2 marks.
2006-10-07 14:12:38
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answer #6
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answered by Damitajo 3
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metallic metal
2006-10-07 14:16:20
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answer #7
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answered by Anonymous
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Zirconium tungstate compound (ZrW2O8)
2006-10-07 14:36:32
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answer #8
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answered by VTNomad 4
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