← Conductors and insulators lesson New set →

Electronics Worksheet: Conductors and Insulators

Electronics lesson 3: Conductors and insulators · Set 73 · 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.

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

Answer key

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

Free electronics lessons, practice and worksheets at talentjr.in/electronics-for-kids