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WorksheetsYr 8 plastics quiz
Total questions: 10
Worksheet time: 5mins
Name
Class
Date
1.
Which type of plastic can only be formed once?
a)
Thermo
b)
Thermosetting
2.
The only naturally occurring polymer is?
(a)
3.
Thermoforming polymers will soften when heated and harden when cooled.
a)
True
b)
False
4.
One technique used to shape thermo plastic is ..
a)
Injection moulding
b)
Brazing
c)
Milling
5.
Plastic bottles are made using what technique?
(a)
6.
What polymer is often used for vacuum forming?
(a)
7.
Is the mould brought up into the plastic sheet or pressed down into it?
a)
Down
b)
Up
8.
How does the plastic sheet become the shape of the mould?
(a)
9.
Do the sides of the mould need to be straight or slightly angled?
a)
Straight
b)
Slightly angled
10.
What can you add to your mould to make it easier to remove from the plastic sheet?
a)
Glitter
b)
Masking tape
c)
Wax
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