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Electronics Worksheet: Conductors and Insulators

Electronics lesson 3: Conductors and insulators · Set 108 · 40 questions
TalentJR

Remember (Metal passes, plastic blocks): Conductors: metals (copper, iron, steel, aluminium, brass) and graphite. Insulators: rubber, plastic, wood, glass, paper, cotton, wool, cork, ceramic and dry air. Tester: put the object across the gap — the bulb glows only for a conductor.

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  1. 1.🔍 Which is the odd one out? (a) a glass marble (b) a cotton thread (c) a steel spoon (d) a ceramic cup
  2. 2.🔍 Which is the odd one out? (a) a metal paper clip (b) a copper wire (c) a woollen thread (d) a steel coin
  3. 3.True or false: a woollen thread is a conductor. (a) True (b) False
  4. 4.🔍 Which is the odd one out? (a) an iron nail (b) aluminium foil (c) a rubber band (d) a graphite rod
  5. 5.🔌 Is a steel coin a conductor or an insulator? (a) a conductor (b) an insulator
  6. 6.True or false: a rubber band is a conductor. (a) False (b) True
  7. 7.🔌 Which metal is used for most electric wires at home? (a) plastic (b) rubber (c) copper (d) glass
  8. 8.🔍 Which is the odd one out? (a) a rubber band (b) a ceramic cup (c) an iron nail (d) a plastic ruler
  9. 9.🔦 A tester circuit has a new cell, a good bulb and wires with a gap between two clips. We put a plastic straw across the gap. Does the bulb glow? (a) Yes (b) No
  10. 10.🔍 Which is the odd one out? (a) a woollen thread (b) a paper strip (c) a rubber band (d) a graphite rod
  11. 11.🔌 Is a graphite rod a conductor or an insulator? (a) a conductor (b) an insulator
  12. 12.Which of these is an insulator? (a) a steel coin (b) a dry cork (c) a copper wire (d) an iron nail
  13. 13.Which of these is a conductor? (a) a brass key (b) a rubber eraser (c) a wooden stick (d) a dry cork
  14. 14.🔦 A tester circuit has a new cell, a good bulb and wires with a gap between two clips. We put a graphite rod across the gap. Does the bulb glow? (a) No (b) Yes
  15. 15.🔍 Which is the odd one out? (a) an iron nail (b) a wooden stick (c) a graphite rod (d) a copper wire
  16. 16.Which of these is a conductor? (a) a cotton thread (b) a rubber band (c) a graphite rod (d) a rubber eraser
  17. 17.True or false: a steel coin is an insulator. (a) False (b) True
  18. 18.🔌 Is a ceramic cup a conductor or an insulator? (a) a conductor (b) an insulator
  19. 19.🔦 A tester circuit has a new cell, a good bulb and wires with a gap between two clips. We put a rubber band across the gap. Does the bulb glow? (a) Yes (b) No
  20. 20.Which of these is an insulator? (a) a plastic straw (b) a metal paper clip (c) aluminium foil (d) a safety pin
  21. 21.🔌 Which part of a screwdriver should an electrician hold? (a) the metal tip (b) the bare end (c) the steel shaft (d) the plastic handle
  22. 22.🔍 Which is the odd one out? (a) a glass marble (b) a safety pin (c) a woollen thread (d) a dry cork
  23. 23.True or false: an iron nail is a conductor. (a) False (b) True
  24. 24.🔌 Is a rubber band a conductor or an insulator? (a) an insulator (b) a conductor
  25. 25.🔌 Is an iron nail a conductor or an insulator? (a) an insulator (b) a conductor
  26. 26.True or false: a rubber eraser is a conductor. (a) True (b) False
  27. 27.🔍 Which is the odd one out? (a) a copper wire (b) a plastic straw (c) a graphite rod (d) aluminium foil
  28. 28.Which of these is a conductor? (a) a rubber eraser (b) a glass marble (c) a steel spoon (d) a rubber band
  29. 29.Which of these is an insulator? (a) aluminium foil (b) a steel coin (c) a copper wire (d) a plastic ruler
  30. 30.True or false: a plastic ruler is a conductor. (a) True (b) False
  31. 31.True or false: a ceramic cup is an insulator. (a) True (b) False
  32. 32.🔦 A tester circuit has a new cell, a good bulb and wires with a gap between two clips. We put a steel coin across the gap. Does the bulb glow? (a) No (b) Yes
  33. 33.🔍 Which is the odd one out? (a) a brass key (b) a dry cork (c) aluminium foil (d) a steel coin
  34. 34.🔌 Is a copper wire a conductor or an insulator? (a) an insulator (b) a conductor
  35. 35.True or false: a cotton thread is a conductor. (a) True (b) False
  36. 36.🔦 A tester circuit has a new cell, a good bulb and wires with a gap between two clips. We put a rubber eraser across the gap. Does the bulb glow? (a) Yes (b) No
  37. 37.🔌 Is a steel spoon a conductor or an insulator? (a) a conductor (b) an insulator
  38. 38.🔌 Most metals are good … (a) magnets only (b) conductors (c) insulators (d) batteries
  39. 39.🔍 Which is the odd one out? (a) a steel coin (b) a plastic ruler (c) a brass key (d) an iron nail
  40. 40.🔌 Is a rubber eraser a conductor or an insulator? (a) an insulator (b) a conductor

Answer key

  1. a steel spoon
  2. a woollen thread
  3. False
  4. a rubber band
  5. a conductor
  6. False
  7. copper
  8. an iron nail
  9. No
  10. a graphite rod
  11. a conductor
  12. a dry cork
  13. a brass key
  14. Yes
  15. a wooden stick
  16. a graphite rod
  17. False
  18. an insulator
  19. No
  20. a plastic straw
  21. the plastic handle
  22. a safety pin
  23. True
  24. an insulator
  25. a conductor
  26. False
  27. a plastic straw
  28. a steel spoon
  29. a plastic ruler
  30. False
  31. True
  32. Yes
  33. a dry cork
  34. a conductor
  35. False
  36. No
  37. a conductor
  38. conductors
  39. a plastic ruler
  40. an insulator

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