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Engineering Worksheet: Materials

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

Answer key

  1. copper
  2. waterproof
  3. an umbrella cover
  4. a conductor
  5. electrical conductor
  6. glass
  7. an insulator
  8. False
  9. False
  10. heat insulator
  11. graphite
  12. transparent
  13. heat insulator
  14. wood or plastic
  15. transparent
  16. plastic-coated cloth
  17. an insulator
  18. an oven glove
  19. False
  20. an insulator
  21. steel
  22. True
  23. a spectacle lens
  24. False
  25. False
  26. True
  27. True
  28. waterproof
  29. True
  30. False
  31. cotton cloth
  32. a cooking pot handle
  33. a water tank
  34. an insulator
  35. a magnifier lens
  36. a conductor
  37. flexible
  38. a tea flask lining
  39. waterproof
  40. waterproof

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