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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 295 · 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 brass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  2. 2.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
  3. 3.🔍 Which is the odd one out? (a) aluminium (b) dry wood (c) graphite (d) copper
  4. 4.Which of these needs an electrical conductor? (a) a water tank (b) a spectacle lens (c) a car windscreen (d) a plug pin
  5. 5.🧱 Which property matters most for a boat hull? (a) flexible (b) waterproof (c) electrical conductor (d) transparent
  6. 6.Which of these needs a transparent material? (a) a car windscreen (b) a cooking pot handle (c) a yoga mat (d) a raincoat
  7. 7.Which of these needs a transparent material? (a) a hair band (b) a switch contact (c) a magnifier lens (d) a roof sheet
  8. 8.🧱 Which property matters most for a window pane? (a) heat insulator (b) flexible (c) transparent (d) electrical conductor
  9. 9.🧱 Which material is best for a cooking pot handle? (a) iron (b) copper (c) aluminium (d) wood or plastic
  10. 10.🧱 Which property matters most for a plug pin? (a) electrical conductor (b) transparent (c) flexible (d) waterproof
  11. 11.True or false: a water tank needs a waterproof material. (a) False (b) True
  12. 12.🧱 Which property matters most for a spectacle lens? (a) transparent (b) heat insulator (c) flexible (d) waterproof
  13. 13.🔍 Which is the odd one out? (a) steel (b) copper (c) clay pottery (d) aluminium
  14. 14.🧱 Which property matters most for a raincoat? (a) transparent (b) electrical conductor (c) flexible (d) waterproof
  15. 15.🧱 Which material is best for the core of an electric wire? (a) wood (b) rubber (c) copper (d) glass
  16. 16.True or false: a spectacle lens needs a transparent material. (a) False (b) True
  17. 17.True or false: a roof sheet needs a flexible material. (a) False (b) True
  18. 18.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  19. 19.🔍 Which is the odd one out? (a) dry wood (b) plastic (c) rubber (d) copper
  20. 20.🧱 Which material is best for the bars inside concrete? (a) glass (b) steel (c) plastic (d) rubber
  21. 21.🧱 Which property matters most for an oven glove? (a) heat insulator (b) waterproof (c) transparent (d) flexible
  22. 22.True or false: a car seat belt needs a waterproof material. (a) True (b) False
  23. 23.Which of these needs a waterproof material? (a) a window pane (b) a hair band (c) a raincoat (d) a spectacle lens
  24. 24.True or false: a car seat belt needs a flexible material. (a) False (b) True
  25. 25.Which of these needs a transparent material? (a) a hair band (b) a car seat belt (c) a roof sheet (d) a window pane
  26. 26.🧱 Is cotton cloth an electrical conductor or an insulator? (a) a conductor (b) an insulator
  27. 27.🧱 Which property matters most for a cooking pot handle? (a) transparent (b) electrical conductor (c) heat insulator (d) waterproof
  28. 28.🧱 Is rubber an electrical conductor or an insulator? (a) a conductor (b) an insulator
  29. 29.True or false: a roof sheet needs an electrical conductor. (a) False (b) True
  30. 30.🧱 Is steel an electrical conductor or an insulator? (a) a conductor (b) an insulator
  31. 31.True or false: an oven glove needs a heat insulator. (a) True (b) False
  32. 32.🔍 Which is the odd one out? (a) plastic (b) iron (c) steel (d) copper
  33. 33.🧱 Which property matters most for a car seat belt? (a) transparent (b) flexible (c) waterproof (d) electrical conductor
  34. 34.🧱 Which material is best for a window pane? (a) wood (b) steel (c) glass (d) brick
  35. 35.🔍 Which is the odd one out? (a) plastic (b) iron (c) rubber (d) clay pottery
  36. 36.🧱 Which material is best for a raincoat? (a) plastic-coated cloth (b) paper (c) cardboard (d) cotton wool
  37. 37.🔍 Which is the odd one out? (a) dry wood (b) rubber (c) plastic (d) graphite
  38. 38.🔍 Which is the odd one out? (a) dry wood (b) clay pottery (c) plastic (d) steel
  39. 39.True or false: a window pane needs a transparent material. (a) True (b) False
  40. 40.True or false: a cooking pot handle needs a heat insulator. (a) False (b) True

Answer key

  1. a conductor
  2. an insulator
  3. dry wood
  4. a plug pin
  5. waterproof
  6. a car windscreen
  7. a magnifier lens
  8. transparent
  9. wood or plastic
  10. electrical conductor
  11. True
  12. transparent
  13. clay pottery
  14. waterproof
  15. copper
  16. True
  17. False
  18. a conductor
  19. copper
  20. steel
  21. heat insulator
  22. False
  23. a raincoat
  24. True
  25. a window pane
  26. an insulator
  27. heat insulator
  28. an insulator
  29. False
  30. a conductor
  31. True
  32. plastic
  33. flexible
  34. glass
  35. iron
  36. plastic-coated cloth
  37. graphite
  38. steel
  39. True
  40. True

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