Gcse design & technology

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An interactive design and technology test to be used in alongside Qwizdom's Classroom Response Systems/Student Voting Systems

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Gcse design & technology

  1. 1. GCSE Design & Technology<br />Materials & Components<br />A Qwizdom Presentation<br />
  2. 2. What does an electrical conductor do?<br />An electrical conductor allows electricity to flow through it easily.<br />An electrical conductor prevents electricity from flowing.<br />An electrical conductor is a type of plastic material.<br />All of the above<br />
  3. 3.  What is a material that can exhibit both<br />insulating and conducting properties?<br />Conductor<br />Insulator<br />Semi-conductor<br />Demi-conductor<br />
  4. 4. An insulator has what sort of value?<br />A high resistivity value<br />A high conductance value<br />A high material value<br />All of the above<br />
  5. 5.  When light falls on an LDR, its resistance<br />will:<br />Increase<br />Double<br />Stay the same<br />Decrease<br />Halve<br />
  6. 6. A thermistor is a component that changes its<br />resistance in response to a change in:<br />Light<br />Temperature<br />Pressure<br />Current<br />Moisture<br />
  7. 7. Two transistors can be joined together to form<br />a:<br />Darlington pair<br />Durham pair<br />Doncaster pair<br />Dundee pair<br />
  8. 8. A miniature circuit that is etched onto a piece of<br />silicon is called<br />A transistor<br />A semiconductor<br />A discreet component<br />A dual-in-line package<br />An integrated circuit<br />
  9. 9. What is the unit of resistance?<br />Ohms<br />Volt<br />Farad<br />
  10. 10. What is the resistance of a resistor designated as<br />3k3?<br />33 kilo-ohms<br />0.33 kilo-ohms<br />3.3 kilo-ohms<br />
  11. 11. In a resistor colour-code, what resistance value<br />is indicated by brown, black, orange?<br />100000 ohms<br />1000 ohms<br />10000 ohms<br />
  12. 12. An electrolytic capacitor can be connected<br />either way round in a circuit: <br />True<br />False<br />
  13. 13. Which of the following is NOT a lead connected to a transistor<br />Base<br />Emitter<br />Follower<br />Collector<br />
  14. 14. Capacitors are components that store electrical<br />charge. Capacitance is measured in:<br />Farads<br />Ohms<br />Joules<br />
  15. 15. What is a potential divider?<br />A potential divider is made up of two capacitors in parallel.<br />A potential divider is made up of two capacitors in series.<br />A potential divider is made up of a resistor and capacitor<br />A potential divider is made up of two resistors in parallel.<br />A potential divider is made up of two resistors in series.<br />
  16. 16. Diodes are often used for changing alternating<br />current into direct current - a process known as<br />rectification. <br />True<br />False<br />

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