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Chemistry > Materials > Flashcards

Materials Flashcards

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1
Q

what is glass made of

A

mainly sand, SiO2

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2
Q

what are the two types of glass

A

soda lime glass
borosilicate glass

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3
Q

what is soda lime glass used for

A

windows, bottles, drinking glasses and vases

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4
Q

what are the properties of soda lime glass

A

cheap
durable
transparent
brittle

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5
Q

what is borosilicate glass used for

A

ovenware
laboratory glassware like test tubes, beakers and flasks

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6
Q

what are the properties of glass

A

transparent
hard but brittle
poor conductors of heat and electricity

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7
Q

what are clay ceramics

A

bricks, pottery, porcelain and china

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8
Q

what are ceramic materials used to make

A

wall tiles
bath tubs
sinks
toilets

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9
Q

properties of clay ceramics

A

opaque
hard and strong, but brittle
good insulators
poor electrical insulators

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10
Q

what is poly(ethene) used to make

A

carrier bags, plastic bottles, cling film

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11
Q

what is PVC used to make

A

water pipes, window frames, insulation for electrical wires

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12
Q

what are the properties of polymers

A

usually strong and chemically unreactive
poor electrical and thermal conductors
can be moulded into complex shapes

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13
Q

what are the magentic metals

A

iron, nickel and cobalt

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14
Q

what are the properties of metals

A

strong
hard
shiny
high MP
good electrical and thermal conductors
malleable and ductile

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15
Q

what is a composite material

A

a mixture of two or more materials combines to produce a material with improved properties

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16
Q

what are examples of man made composites

A

concrete, steel-reinforced concrete, plywood and safety glass

17
Q

what are some examples of natural composites

A

wood and bone

18
Q

what are composites made of

A

one material is the reinforcement and the other is the matrix

19
Q

what does the matrix do

A

it surrounds and binds together fibres or fragments of the reinforcement

20
Q

why is a composite material stronger, harder tougher and more lightweight than a single material

A

it has useful properties from both the materials used to make it

21
Q

what is glass reinforced plastic used to make

A

boat hulls and car bodies

22
Q

what is safety glass used to make

A

car windscreens as they are hard and rigid and don’t break into small pieces when impacted

23
Q

what is steel reinforced concrete used to make

A

construction of buildings as it is strong in tension and compression

24
Q

what is kevlar used to make

A

bulletproof vests

25
Q

what is carbon fibre reinforced polymer used to make

A

bodies of high performance bikes and racing cars

Chemistry (21 decks)

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