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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 383 · 40 questions
TalentJR

Engineer's tip (Match the property to the job): Ask: what must it do — keep water out, bend, let light through, carry current or stay cool? Metals and graphite conduct electricity; rubber, plastic, dry wood, glass, pottery and cloth insulate. Pick the material whose main property fits the job.

NameDateTime takenScore ___ / 40
  1. 1.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  2. 2.Which of these needs a waterproof material? (a) an umbrella cover (b) a magnifier lens (c) a cooking pot handle (d) a plug pin
  3. 3.🧱 Which property matters most for a window pane? (a) electrical conductor (b) heat insulator (c) transparent (d) waterproof
  4. 4.🧱 Is clay pottery an electrical conductor or an insulator? (a) an insulator (b) a conductor
  5. 5.🧱 Which property matters most for a skipping rope? (a) waterproof (b) heat insulator (c) flexible (d) electrical conductor
  6. 6.Which of these needs an electrical conductor? (a) a skipping rope (b) a boat hull (c) a switch contact (d) a hair band
  7. 7.True or false: a car windscreen needs a flexible material. (a) True (b) False
  8. 8.🧱 Which material is best for a window pane? (a) wood (b) steel (c) brick (d) glass
  9. 9.🧱 Which property matters most for a car seat belt? (a) electrical conductor (b) flexible (c) waterproof (d) transparent
  10. 10.🔍 Which is the odd one out? (a) graphite (b) glass (c) brass (d) aluminium
  11. 11.🧱 Which property matters most for a cooking pot handle? (a) flexible (b) heat insulator (c) waterproof (d) transparent
  12. 12.Which of these needs an electrical conductor? (a) a raincoat (b) a boat hull (c) the core of a wire (d) a yoga mat
  13. 13.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
  14. 14.🧱 Which material is best for a raincoat? (a) cardboard (b) plastic-coated cloth (c) paper (d) cotton wool
  15. 15.🧱 Which material is best for the core of an electric wire? (a) copper (b) wood (c) rubber (d) glass
  16. 16.🧱 Which property matters most for the core of a wire? (a) heat insulator (b) flexible (c) waterproof (d) electrical conductor
  17. 17.🔍 Which is the odd one out? (a) cotton cloth (b) iron (c) aluminium (d) graphite
  18. 18.🧱 Is brass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  19. 19.🧱 Which property matters most for a car windscreen? (a) waterproof (b) transparent (c) electrical conductor (d) heat insulator
  20. 20.🧱 Which property matters most for a roof sheet? (a) transparent (b) electrical conductor (c) waterproof (d) flexible
  21. 21.True or false: a switch contact needs a heat insulator. (a) True (b) False
  22. 22.Which of these needs a flexible material? (a) a roof sheet (b) a water tank (c) an umbrella cover (d) a hair band
  23. 23.True or false: a roof sheet needs a flexible material. (a) True (b) False
  24. 24.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
  25. 25.True or false: a car windscreen needs a heat insulator. (a) True (b) False
  26. 26.True or false: the core of a wire needs a transparent material. (a) True (b) False
  27. 27.True or false: a magnifier lens needs a flexible material. (a) False (b) True
  28. 28.Which of these needs a heat insulator? (a) a skipping rope (b) a car windscreen (c) a tea flask lining (d) a raincoat
  29. 29.🔍 Which is the odd one out? (a) steel (b) iron (c) graphite (d) plastic
  30. 30.True or false: an umbrella cover needs a transparent material. (a) False (b) True
  31. 31.🧱 Which property matters most for a plug pin? (a) electrical conductor (b) transparent (c) waterproof (d) flexible
  32. 32.🧱 Is graphite an electrical conductor or an insulator? (a) a conductor (b) an insulator
  33. 33.🧱 Which property matters most for a magnifier lens? (a) heat insulator (b) flexible (c) transparent (d) electrical conductor
  34. 34.🧱 Is cotton cloth an electrical conductor or an insulator? (a) a conductor (b) an insulator
  35. 35.Which of these needs a heat insulator? (a) a water tank (b) a car seat belt (c) a roof sheet (d) an oven glove
  36. 36.🔍 Which is the odd one out? (a) rubber (b) graphite (c) copper (d) aluminium
  37. 37.🧱 Which property matters most for an umbrella cover? (a) electrical conductor (b) flexible (c) heat insulator (d) waterproof
  38. 38.🔍 Which is the odd one out? (a) rubber (b) graphite (c) plastic (d) dry wood
  39. 39.True or false: a hair band needs a transparent material. (a) False (b) True
  40. 40.🧱 Is copper an electrical conductor or an insulator? (a) a conductor (b) an insulator

Answer key

  1. a conductor
  2. an umbrella cover
  3. transparent
  4. an insulator
  5. flexible
  6. a switch contact
  7. False
  8. glass
  9. flexible
  10. glass
  11. heat insulator
  12. the core of a wire
  13. a conductor
  14. plastic-coated cloth
  15. copper
  16. electrical conductor
  17. cotton cloth
  18. a conductor
  19. transparent
  20. waterproof
  21. False
  22. a hair band
  23. False
  24. an insulator
  25. False
  26. False
  27. False
  28. a tea flask lining
  29. plastic
  30. False
  31. electrical conductor
  32. a conductor
  33. transparent
  34. an insulator
  35. an oven glove
  36. rubber
  37. waterproof
  38. graphite
  39. False
  40. a conductor

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