← Conductors and insulators lesson New set →

Electronics Worksheet: Conductors and Insulators

Electronics lesson 3: Conductors and insulators · Set 43 · 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.🔍 Which is the odd one out? (a) a rubber band (b) a brass key (c) aluminium foil (d) a copper wire
  2. 2.Which of these is a conductor? (a) a ceramic cup (b) a metal paper clip (c) a plastic ruler (d) a rubber band
  3. 3.🔍 Which is the odd one out? (a) a brass key (b) a graphite rod (c) a dry cork (d) a steel spoon
  4. 4.Which of these is an insulator? (a) a glass marble (b) a copper wire (c) an iron nail (d) aluminium foil
  5. 5.🔌 Which part of a screwdriver should an electrician hold? (a) the steel shaft (b) the metal tip (c) the plastic handle (d) the bare end
  6. 6.🔌 Is a rubber band a conductor or an insulator? (a) an insulator (b) a conductor
  7. 7.🔍 Which is the odd one out? (a) a copper wire (b) a metal paper clip (c) a plastic straw (d) a steel coin
  8. 8.🔌 Is a rubber eraser a conductor or an insulator? (a) an insulator (b) a conductor
  9. 9.Which of these is an insulator? (a) a copper wire (b) a steel spoon (c) a wooden stick (d) a metal paper clip
  10. 10.Which of these is a conductor? (a) a glass marble (b) a paper strip (c) a cotton thread (d) an iron nail
  11. 11.🔌 Is a safety pin a conductor or an insulator? (a) a conductor (b) an insulator
  12. 12.🔌 Is a metal paper clip a conductor or an insulator? (a) an insulator (b) a conductor
  13. 13.🔌 Is a steel coin a conductor or an insulator? (a) an insulator (b) a conductor
  14. 14.🔌 Is an iron nail a conductor or an insulator? (a) a conductor (b) an insulator
  15. 15.Which of these is an insulator? (a) a steel spoon (b) a safety pin (c) a brass key (d) a ceramic cup
  16. 16.True or false: a copper wire is an insulator. (a) True (b) False
  17. 17.🔌 Is a dry cork a conductor or an insulator? (a) a conductor (b) an insulator
  18. 18.True or false: a cotton thread is a conductor. (a) False (b) True
  19. 19.🔍 Which is the odd one out? (a) a plastic straw (b) a paper strip (c) a rubber eraser (d) a safety pin
  20. 20.🔌 Is a wooden stick a conductor or an insulator? (a) an insulator (b) a conductor
  21. 21.🔍 Which is the odd one out? (a) a rubber band (b) a ceramic cup (c) a plastic ruler (d) a graphite rod
  22. 22.🔦 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
  23. 23.True or false: a metal paper clip is a conductor. (a) False (b) True
  24. 24.🔦 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) Yes (b) No
  25. 25.🔌 Is a copper wire a conductor or an insulator? (a) an insulator (b) a conductor
  26. 26.True or false: a steel coin is a conductor. (a) False (b) True
  27. 27.True or false: a metal paper clip is an insulator. (a) False (b) True
  28. 28.🔍 Which is the odd one out? (a) a copper wire (b) a safety pin (c) a steel coin (d) a plastic ruler
  29. 29.🔌 Is a plastic ruler a conductor or an insulator? (a) a conductor (b) an insulator
  30. 30.🔌 Is a ceramic cup a conductor or an insulator? (a) an insulator (b) a conductor
  31. 31.🔌 Is a steel spoon a conductor or an insulator? (a) an insulator (b) a conductor
  32. 32.🔌 Is a brass key a conductor or an insulator? (a) an insulator (b) a conductor
  33. 33.🔌 Is a paper strip a conductor or an insulator? (a) a conductor (b) an insulator
  34. 34.True or false: a rubber band is a conductor. (a) True (b) False
  35. 35.🔌 Is a plastic straw a conductor or an insulator? (a) a conductor (b) an insulator
  36. 36.🔌 Is aluminium foil a conductor or an insulator? (a) a conductor (b) an insulator
  37. 37.🔌 A gap of dry air between two wires acts as … (a) a switch that is ON (b) a cell (c) a conductor (d) an insulator
  38. 38.🔍 Which is the odd one out? (a) a wooden stick (b) a metal paper clip (c) a plastic straw (d) a glass marble
  39. 39.True or false: a plastic ruler is an insulator. (a) True (b) False
  40. 40.🔌 Why are electric wires covered in plastic? (a) to make them heavy (b) plastic is a conductor (c) plastic is an insulator (d) plastic makes current

Answer key

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

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