← Conductors and insulators lesson New set →

Electronics Worksheet: Conductors and Insulators

Electronics lesson 3: Conductors and insulators · Set 86 · 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 rubber eraser a conductor or an insulator? (a) a conductor (b) an insulator
  2. 2.🔍 Which is the odd one out? (a) a brass key (b) an iron nail (c) a rubber eraser (d) a safety pin
  3. 3.True or false: a steel spoon is a conductor. (a) True (b) False
  4. 4.🔍 Which is the odd one out? (a) a steel coin (b) a glass marble (c) a steel spoon (d) a brass key
  5. 5.🔌 Which metal is used for most electric wires at home? (a) rubber (b) glass (c) plastic (d) copper
  6. 6.🔦 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) Yes (b) No
  7. 7.🔌 Is a safety pin a conductor or an insulator? (a) an insulator (b) a conductor
  8. 8.True or false: a steel coin is an insulator. (a) False (b) True
  9. 9.🔌 Is a plastic straw a conductor or an insulator? (a) an insulator (b) a conductor
  10. 10.True or false: a graphite rod is a conductor. (a) False (b) True
  11. 11.🔌 A gap of dry air between two wires acts as … (a) an insulator (b) a conductor (c) a cell (d) a switch that is ON
  12. 12.Which of these is an insulator? (a) a plastic straw (b) a metal paper clip (c) a steel coin (d) a graphite rod
  13. 13.True or false: a metal paper clip is an insulator. (a) True (b) False
  14. 14.🔍 Which is the odd one out? (a) a woollen thread (b) a steel coin (c) a glass marble (d) a rubber band
  15. 15.🔦 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
  16. 16.🔦 A tester circuit has a new cell, a good bulb and wires with a gap between two clips. We put a safety pin across the gap. Does the bulb glow? (a) Yes (b) No
  17. 17.🔍 Which is the odd one out? (a) a rubber band (b) a plastic straw (c) a graphite rod (d) a woollen thread
  18. 18.🔌 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
  19. 19.🔌 Is a graphite rod a conductor or an insulator? (a) an insulator (b) a conductor
  20. 20.🔌 Most metals are good … (a) insulators (b) magnets only (c) batteries (d) conductors
  21. 21.🔍 Which is the odd one out? (a) a steel spoon (b) a copper wire (c) a ceramic cup (d) a safety pin
  22. 22.Which of these is a conductor? (a) a rubber eraser (b) a cotton thread (c) a metal paper clip (d) a plastic ruler
  23. 23.🔌 Why are electric wires covered in plastic? (a) plastic is a conductor (b) plastic is an insulator (c) to make them heavy (d) plastic makes current
  24. 24.🔦 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
  25. 25.🔦 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) No (b) Yes
  26. 26.Which of these is a conductor? (a) a glass marble (b) a paper strip (c) a steel coin (d) a ceramic cup
  27. 27.🔌 Is a metal paper clip a conductor or an insulator? (a) an insulator (b) a conductor
  28. 28.True or false: aluminium foil is an insulator. (a) False (b) True
  29. 29.Which of these is a conductor? (a) a wooden stick (b) a glass marble (c) a dry cork (d) a safety pin
  30. 30.True or false: a glass marble is a conductor. (a) False (b) True
  31. 31.🔦 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
  32. 32.🔍 Which is the odd one out? (a) a rubber eraser (b) a steel spoon (c) a plastic straw (d) a wooden stick
  33. 33.Which of these is a conductor? (a) a paper strip (b) a woollen thread (c) a rubber eraser (d) a copper wire
  34. 34.🔍 Which is the odd one out? (a) a brass key (b) a steel coin (c) a rubber band (d) a safety pin
  35. 35.🔌 Is a brass key a conductor or an insulator? (a) a conductor (b) an insulator
  36. 36.True or false: a ceramic cup is a conductor. (a) True (b) False
  37. 37.Which of these is an insulator? (a) a brass key (b) a rubber band (c) a safety pin (d) a metal paper clip
  38. 38.Which of these is an insulator? (a) a woollen thread (b) aluminium foil (c) a graphite rod (d) a steel spoon
  39. 39.🔌 Is a steel spoon a conductor or an insulator? (a) an insulator (b) a conductor
  40. 40.🔌 Is aluminium foil a conductor or an insulator? (a) a conductor (b) an insulator

Answer key

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

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