metals

Question 1

where do you find metals?

Answer 1

• they are mined from the ground in ore
• it is extracted through smelting and heating
• common ones are bauxite and iron

Question 3

name all the non ferrous metals

Answer 3

aluminium, copper, zinc, silver, gold, titanium and tin

Question 4

name the properties and uses for copper

Answer 4

ductile, malleable, tough, corrosion resistant electrical/thermal conductor

electrical wire, circuits, pipes (heating)

Question 5

name the properties and uses for aluminium

Answer 5

lightweight, ductile, malleable, corrosion resistant, thermal/electrical conductor

drink cans, foil, aircraft bodies

Question 6

name the properties and uses for zinc

Answer 6

malleable, good corrosion resistance, electrical conductor

buckets, farm gates, dustbins

Question 7

name the properties and uses for silver

Answer 7

malleable, ductile, corrosion resistant

jewellery, cutlery, plating

Question 8

name the properties and uses for gold

Answer 8

malleable, ductile, lightweight

jewellery, electrical components, connectors

Question 9

name the properties and uses for titanium

Answer 9

hard, lightweight, corrosion resistant, malleable

spectacle frames, golf clubs, aircrafts

Question 10

name the properties and uses for tin

Answer 10

ductile, malleable, corrosion resistant

soft solder, coatings for food cans

Question 11

name all the ferrous metals

Answer 11

LCS-low carbon steel
MCS-medium carbon steel
cast iron

Question 12

name the properties and uses for LCS

Answer 12

ductile, high tensile strength, tough, malleable, poor corrosion resistance

nuts and bolts, screws, car bodies

Question 13

name the properties and uses for MCS

Answer 13

HARDER than LCS, malleable, tough

springs, garden tools

Question 14

name the properties and uses for cast iron

Answer 14

brittle and hard, high compressive strength, corrosion resistant

machine parts, bins and lighting

Question 15

name all the ferrous alloys

Answer 15

stainless steel, high speed steel, die steel

Question 16

name the types, properties and uses for stainless steel

Answer 16

chrome and nickel

tough, hard, corrosion resistant

sinks, kitchenware, cutlery

Question 17

name the types, properties and uses for high speed steel

Answer 17

tungsten, chromium, vanadium and carbon

hard, tough, high level resistance to frictional heat

tool blades, drill bits, router

Question 18

name the properties and uses for die steel

Answer 18

hard, tough

blanking punches, dies, extruder dies

Question 19

name all the non ferrous alloys

Answer 19

bronze, brass, duralumin, pewter

Question 20

name the properties and uses for bronze

Answer 20

tough, hard, malleable, corrosion resistant
90% copper 10% tin

statues, coins

Question 21

name the properties and uses for brass

Answer 21

corrosion resistant, malleable, ductile
more copper and less zinc

boat fittings, door parts, ornaments

Question 22

name the properties and uses for duralumin

Answer 22

ductile, high tensile strength, lightweight
copper and magnesium

aircraft parts/vehicle

Question 23

name the properties and uses for pewter

Answer 23

malleable, ductile, corrosion resistant
MOSTLY tin and copper

tankards, flasks, decor, photo frames

Question 24

what are possible forms for metal?

Answer 24

sheet: 1mm-3mm thick

plate: thicker than 3mm

bar: solid form and shapes

tube: hollow bar

structural: angular shapes
“H L I T”