What does it mean if a polymer is classified as synthetic?
It is derived from a natural source such as plants
It will decompose naturally
It is chemically engineered
Polyethylene terephthalate (PET) is commonly used to make what everyday object?
Drinks bottles
Cling film
Pen lids
When marking out on the surface of a polymer, which is the preferred method?
Chinagraph pencil
Dry wipe marker
Pencil
When injection moulding, how is the polymer moved along the heating chamber?
By an Archimedean screw
By a hopper
By the heater
What makes a vinyl cutter suitable for making long signs?
The cutter moves along a vector path
The vinyl cutter is computer controlled
The vinyl is on a long roll
What is fractional distillation?
The way oil is obtained from the surface of the earth
The way oil is heated to break it down to obtain different materials
The way monomers are produced from oil
How is polyethylene produced?
By the polymerisation of the monomer ethylene
By the polymerisation of the monomer propylene
By the polymerisation of the monomer styrene
What are electrical plug sockets made from?
Polypropylene
Polyethylene terephthalate
Urea formaldehyde
What is a former?
A hollow shape produced on a vacuum former
A rigid shape that is used so other materials take its form
A hollow cavity where molten material can be formed
When shaping acrylic by hand, which is the correct order for the process?
Saw, file, abrasive, buff
Saw, abrasive, buff, file
Saw, file, buff, abrasive