C3h Metal Structure & Properties

C3h Metal Structure & Properties Paper

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  • Created by: Amira
  • Created on: 04-05-12 07:22
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Item C3h: Metal Structure and Properties
1. Iron is used to make steel and to make cars and bridges because it is strong.
2. Copper is used to make brass. ( this is an alloy alloy is a mixture of atleast two
metals )
3. Copper is used to make electrical wiring because it is a good electrical
conductor.
4. Copper is also a very good conductor of heat, so it is used to make bottoms of
saucepans.
5. Generally these are the physical properties of metals: ( remember some metals do not show
all these properties)
Lustrous (shiny), hard and high density
high tensile strength
high melting in and boiling points
good conductors of heat and electricity
6. Use the following table giving some information about metals, to answer the
questions:
Metal Melting Electrical Density Hardness Tensile Cost
point ° C. conductivit (g/cm3) strength
y
Aluminium 661 Good 2.70 Medium Medium Low
Copper 1083 Very good 8.92 Medium Medium Medium
Gold 1065 Very good 19.29 Soft Low Very high
Lead 328 Good 11.34 Soft Low Low
Iron ( steel) 1535 Good 7.87 Hard Very high Low
Tungsten 3407 Good 19.40 Hard high High
a) in an electric bulb in metal coil is heated until it glows white hot. The
metal is heated temperatures around 2000° C. Which of the above
metals do you think is chosen for this purpose. Give The reason for your
choice..........................................................................

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Copper is a better connector project city than aluminium, but aluminium
is used for overhead power cables that go from one electricity pylon to
another. Suggest why aluminium is used: ...........
...........................................................................................
c) Iron is used to build bridges. Suggest a reason for this: ..................
............................................................................................
7. Describing metallic bonding: metal particles are held together by a very strong metallic bonds.…read more

Comments

lisa linsdell

Includes information on Metal Properties, this information is also in the form of a table with some useful revision questions involving extracting information from the table and giving reasons for choice.

caitlinbone_

really helpful thank you so much I got an A* thanks to this!!

bigmac69

I failed my exams cuz of ur work :( KAPPA

14newmana

You failed your exams because of your grammar

iamcleverjk

You needed a full stop there...

iamcleverjk

Sorry Alfie Newman

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