Topic 2 Communication skills ..................................................................... 57


Unit 1 Graphic conventions ....................................................................................... 58 Unit 2 Working drawings ........................................................................................... 59 Unit 3 Artistic drawings ............................................................................................. 61


Topic 3 Mechanical systems and control ................................................... 63


Unit 1 Mechanical advantage ..................................................................................... 64 Unit 2 Simple machines ............................................................................................. 66 Unit 3 Complex machines .......................................................................................... 69 Unit 4 Gears ............................................................................................................... 70 Unit 5 Cams and cranks ............................................................................................. 73 Practical Assessment Task (PAT): Power lifting ....................................................... 77 Term 1 Exemplar test memorandum ......................................................................... 82


Topic 4 Processing ....................................................................................... 88


Unit 1 Positive impact of technology: Biodegradability ............................................ 89 Unit 2 Technology with a positive impact: Recycling ............................................... 90 Unit 3 Design a container ........................................................................................... 91 Unit 4 Negative impact on technology ....................................................................... 92 Practical Assessment Task (PAT): Counter the negative impact of technology ........ 94 Term 2 Exemplar test memorandum ......................................................................... 96


Topic 5 Mechanical systems and control ................................................... 97


Unit 1 Revise levers and gear ..................................................................................... 98 Unit 2 Mechanical advantage calculations ................................................................ 104 Unit 3 Representing gears graphically ...................................................................... 106 Unit 4 Investigation skills ......................................................................................... 113 Practical Assessment Task (PAT): Tendering for contracts ...................................... 114 Term 3 Exemplar test memorandum ........................................................................ 119


Topic 6 Electrical systems and control ..................................................... 121


Unit 1 Simple electrical circuits ................................................................................ 122 Unit 2 Using energy .................................................................................................. 123 Unit 3 Electrochemical and photovoltaic cells .......................................................... 125 Unit 4 Generating electricity ..................................................................................... 126 Practical Assessment Task (PAT): Electrical safety systems: Panic buttons ............ 128 Term 4 Exemplar exam memorandum ..................................................................... 131


Resources ............................................................................................................... 136 4


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