← Conductors and insulators lesson New set →

Electronics Worksheet: Conductors and Insulators

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

Answer key

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

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