Electrical Systems 2.0 / 5 based on 2 ratings ? Design & Technology: Resistant MaterialsGCSEAll boards Created by: Sophie :)Created on: 31-05-13 09:36 Define a 'system' A collection of parts that all work together to do a particular function 1 of 8 What are the three stages a system can be broken down into? Input, Process, Output 2 of 8 What does a conductor do? Allows electricity to flow through it - it has a low resistance. Example: copper 3 of 8 What does an insulator do? Prevents electricity from flowing through it - it has a high resistance. Example: PVC 4 of 8 Why does a resistor reduce the current? To protect delicate components from damage 5 of 8 What does the voltage do? Pushes the current around the circuit 6 of 8 Name three input devices that could be used in a circuit Switch, LDR(light dependent resistor), thermistor 7 of 8 Name three output devices that could be used in a circuit Lamps(bulbs), buzzers, motors 8 of 8
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