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Worksheets2022 IGCSE Paper 3 Section A- Exam
Total questions: 12
Worksheet time: 3hrs 0mins
Fig. 1 shows a cycle helmet. The outer and inner shells are made from different plastics.
Give two properties required of the plastics used to make the cycle helmet. [2]
Fig. 2 shows a small wheel. The wheel could be made from wood, metal or plastic. Name a suitable manufacturing process used to produce the wheel when made from:
Wood [1]
Metal [1]
Plastic [1]
Fig. 3 shows two pieces of wood being glued together. Draw on Fig. 3 to show how the glued joint could be strengthened by dovetail nailing. [2]
Fig 4. shows a saucepan
(a) Name a thermosetting plastic that could be used for the handle. Give a reason for your choice. [2]
(b) Name a ferrous alloy that could be used for the saucepan body. Give a reason for your choice. [2]
Fig 5. shows three pre-drilled holes to take a screw.
Select from the list below the correct name for each hole numbered 1, 2 and 3. [3]
countersunk hole
stopped hole
angled hole
pilot hole
clearance hole
Fig. 6 shows a board made from hardwood. The board needs to be seasoned.
Draw on Fig. 6 to show what could happen to the shape of the board if it was incorrectly seasoned. [1]
Fig. 5 shows a wheelbarrow. The mild steel body of the wheelbarrow is galvanised.
(a) State what is meant by the term ‘galvanised’. [1]
(b) State why it is necessary for the body of the wheelbarrow to be galvanised. [1]
Fig. 6 shows a child’s push-along go-kart.
Give two examples of anthropometric data used in the design of the go-kart [2]
Fig. 9 shows a length of wood set up on a woodturning lathe. Name the method of woodturning shown in Fig. 9. [1]
Fig. 10 shows a length of wood ready to be set up on the woodturning lathe. Give one reason why the corners of the wood have been removed. [1]
(a) Name the tool that has been used to cut the thread in the hole on the bracket. [1]
(b) Name the tool that has been used to cut the thread on the rod. [1]
In use, the threaded rod is difficult to tighten by hand. Use sketches and notes to show how the threaded rod could be made easier to tighten. [2]
