CONTENTS
Section 3
Resistant Materials 3.1 3.2 3.3 3.4 3.5 3.6 3.7 3.8 3.9 3.10 3.11
Types of materials Smart and modern materials Plastics Wood Composites Metals Preparation of materials Setting, measuring, marking out, testing Shaping Joining and assembly Finishes
107 107 110 112 115 119 121 126 129 132 134 138
Section 4
Systems and Control
141
4.1
Systems
141
4.3
Mechanisms
164
4.2
Structures
144
4.2.1 4.2.2 4.2.3 4.2.4 4.2.5 4.2.6 4.2.7 4.2.8 4.2.9 4.2.10
Basic concepts Types of frame structure members Strengthening frame structures Nature of structural members Applied loads and reactions Moments Materials Testing Joints in structures Forces
144 147 150 152 154 156 158 159 161 162
4.3.1 4.3.2 4.3.3 4.3.4 4.3.5
Basic concepts Conversion of motion Transmission of motion Energy Bearings and lubrication
164 167 170 174 176
4.4
Electronics
177
4.4.1 4.4.2 4.4.3 4.4.4 4.4.5 4.4.6 4.4.7 4.4.8 4.4.9 4.4.10
Basic concepts Circuit building techniques Switches Resistors Transistors Diodes Transducers Capacitors Time delay circuits Logic gates and operational amplifiers
177 180 182 184 187 189 191 193 195 198
Section 5
The Project (Component 2)
201
Using this resource to teach O Levels
205
Scheme of work
209
Cambridge IGCSE Design & Technology Teacher’s Guide Š HarperCollinsPublishers Ltd 2018
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