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?
Because the cutter moves along a vector path
Because the vinyl cutter is computer controlled
Because 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
If a material is under torsion, which type of force is being applied?
Twisting, where the turning force is applied in opposite directions
Pushing, where force is applied for both ends
Pulling, where force is applied from both ends
Which polymer could be used to fill stuffed toys?
Styrofoam
Acrylonitrile butadiene styrene (ABS)
Expanded polystrene balls
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