← Conductors and insulators lesson New set →

Electronics Worksheet: Conductors and Insulators

Electronics lesson 3: Conductors and insulators · Set 101 · 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.True or false: a brass key is an insulator. (a) True (b) False
  2. 2.True or false: a plastic straw is an insulator. (a) True (b) False
  3. 3.True or false: a steel coin is an insulator. (a) False (b) True
  4. 4.🔦 A tester circuit has a new cell, a good bulb and wires with a gap between two clips. We put a copper wire across the gap. Does the bulb glow? (a) No (b) Yes
  5. 5.🔍 Which is the odd one out? (a) aluminium foil (b) an iron nail (c) a safety pin (d) a rubber band
  6. 6.Which of these is an insulator? (a) a steel coin (b) a dry cork (c) a copper wire (d) a steel spoon
  7. 7.🔦 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
  8. 8.True or false: a cotton thread is an insulator. (a) True (b) False
  9. 9.🔦 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
  10. 10.Which of these is an insulator? (a) an iron nail (b) a safety pin (c) a paper strip (d) a steel coin
  11. 11.🔌 Is a rubber eraser a conductor or an insulator? (a) a conductor (b) an insulator
  12. 12.🔌 Is a safety pin a conductor or an insulator? (a) an insulator (b) a conductor
  13. 13.🔌 Is an iron nail a conductor or an insulator? (a) a conductor (b) an insulator
  14. 14.🔌 Is a plastic straw a conductor or an insulator? (a) a conductor (b) an insulator
  15. 15.🔍 Which is the odd one out? (a) a copper wire (b) a steel spoon (c) a paper strip (d) a graphite rod
  16. 16.🔌 Which metal is used for most electric wires at home? (a) copper (b) plastic (c) glass (d) rubber
  17. 17.🔦 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
  18. 18.🔌 A gap of dry air between two wires acts as … (a) a conductor (b) a switch that is ON (c) a cell (d) an insulator
  19. 19.🔌 Is a rubber band a conductor or an insulator? (a) a conductor (b) an insulator
  20. 20.🔌 Is a plastic ruler a conductor or an insulator? (a) a conductor (b) an insulator
  21. 21.🔦 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
  22. 22.🔌 Is a glass marble a conductor or an insulator? (a) an insulator (b) a conductor
  23. 23.🔌 Is a dry cork a conductor or an insulator? (a) an insulator (b) a conductor
  24. 24.🔌 Is aluminium foil a conductor or an insulator? (a) a conductor (b) an insulator
  25. 25.🔌 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
  26. 26.Which of these is an insulator? (a) a safety pin (b) an iron nail (c) a wooden stick (d) a steel coin
  27. 27.🔌 Is a brass key a conductor or an insulator? (a) a conductor (b) an insulator
  28. 28.Which of these is a conductor? (a) a rubber band (b) a plastic straw (c) a metal paper clip (d) a paper strip
  29. 29.🔦 A tester circuit has a new cell, a good bulb and wires with a gap between two clips. We put a dry cork across the gap. Does the bulb glow? (a) Yes (b) No
  30. 30.🔍 Which is the odd one out? (a) a brass key (b) a rubber eraser (c) a metal paper clip (d) a steel coin
  31. 31.🔍 Which is the odd one out? (a) a brass key (b) a safety pin (c) a graphite rod (d) a dry cork
  32. 32.🔍 Which is the odd one out? (a) a paper strip (b) a wooden stick (c) a glass marble (d) a steel spoon
  33. 33.True or false: a ceramic cup is a conductor. (a) False (b) True
  34. 34.🔦 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) No (b) Yes
  35. 35.True or false: a rubber band is a conductor. (a) False (b) True
  36. 36.True or false: an iron nail is an insulator. (a) False (b) True
  37. 37.Which of these is an insulator? (a) a rubber band (b) a copper wire (c) a graphite rod (d) aluminium foil
  38. 38.🔌 Is a steel coin a conductor or an insulator? (a) an insulator (b) a conductor
  39. 39.Which of these is a conductor? (a) a glass marble (b) a paper strip (c) a copper wire (d) a ceramic cup
  40. 40.🔍 Which is the odd one out? (a) a steel coin (b) an iron nail (c) a cotton thread (d) a brass key

Answer key

  1. False
  2. True
  3. False
  4. Yes
  5. a rubber band
  6. a dry cork
  7. No
  8. True
  9. No
  10. a paper strip
  11. an insulator
  12. a conductor
  13. a conductor
  14. an insulator
  15. a paper strip
  16. copper
  17. No
  18. an insulator
  19. an insulator
  20. an insulator
  21. Yes
  22. an insulator
  23. an insulator
  24. a conductor
  25. the plastic handle
  26. a wooden stick
  27. a conductor
  28. a metal paper clip
  29. No
  30. a rubber eraser
  31. a dry cork
  32. a steel spoon
  33. False
  34. No
  35. False
  36. False
  37. a rubber band
  38. a conductor
  39. a copper wire
  40. a cotton thread

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