← Conductors and insulators lesson New set →

Electronics Worksheet: Conductors and Insulators

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

Answer key

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

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