11 mark
Which property belongs to low carbon steels?
Easily shaped
Brittle
Resistant to corrosion
Very hard
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10.3 Using Materials
21 mark
Brass is an alloy of which metals?
| A | copper | tin |
| B | silver | copper |
| C | copper | zinc |
| D | iron | copper |
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31 mark
Which of these is not a raw material for making soda-lime glass?
Sand
Boron trioxide
Sodium carbonate
Limestone
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41 mark
Which substance could the structure shown belong to?
Graphite
A thermosoftening polymer
A thermosetting polymer
Cellulose
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51 mark
Which of these is not a composite material?
Fibre glass
Reinforced concrete
Car window glass
Clay bricks
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