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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 105 · 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.True or false: a window pane needs a transparent material. (a) False (b) True
  2. 2.🧱 Which property matters most for a tea flask lining? (a) electrical conductor (b) heat insulator (c) transparent (d) waterproof
  3. 3.True or false: a raincoat needs a waterproof material. (a) True (b) False
  4. 4.🧱 Is plastic an electrical conductor or an insulator? (a) an insulator (b) a conductor
  5. 5.Which of these needs an electrical conductor? (a) a car seat belt (b) a water tank (c) an oven glove (d) the core of a wire
  6. 6.🧱 Which property matters most for a boat hull? (a) waterproof (b) heat insulator (c) electrical conductor (d) flexible
  7. 7.🧱 Which property matters most for a yoga mat? (a) electrical conductor (b) transparent (c) waterproof (d) flexible
  8. 8.🧱 Which material is best for a raincoat? (a) paper (b) cardboard (c) plastic-coated cloth (d) cotton wool
  9. 9.True or false: a magnifier lens needs a waterproof material. (a) True (b) False
  10. 10.🔍 Which is the odd one out? (a) dry wood (b) plastic (c) glass (d) steel
  11. 11.🔍 Which is the odd one out? (a) cotton cloth (b) copper (c) aluminium (d) steel
  12. 12.True or false: an oven glove needs a flexible material. (a) False (b) True
  13. 13.True or false: a roof sheet needs a heat insulator. (a) True (b) False
  14. 14.🧱 Which material is best for the core of an electric wire? (a) wood (b) copper (c) glass (d) rubber
  15. 15.True or false: an umbrella cover needs a heat insulator. (a) False (b) True
  16. 16.🧱 Which material is best for a cooking pot handle? (a) copper (b) aluminium (c) iron (d) wood or plastic
  17. 17.Which of these needs a waterproof material? (a) a car windscreen (b) a switch contact (c) a boat hull (d) a plug pin
  18. 18.True or false: a cooking pot handle needs a transparent material. (a) True (b) False
  19. 19.🧱 Is graphite an electrical conductor or an insulator? (a) a conductor (b) an insulator
  20. 20.🧱 Is steel an electrical conductor or an insulator? (a) a conductor (b) an insulator
  21. 21.🧱 Which property matters most for a car seat belt? (a) heat insulator (b) flexible (c) transparent (d) waterproof
  22. 22.🧱 Which property matters most for a magnifier lens? (a) heat insulator (b) flexible (c) waterproof (d) transparent
  23. 23.🧱 Is brass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  24. 24.🧱 Is dry wood an electrical conductor or an insulator? (a) an insulator (b) a conductor
  25. 25.🧱 Which material is best for the bars inside concrete? (a) glass (b) steel (c) rubber (d) plastic
  26. 26.🧱 Which property matters most for a roof sheet? (a) heat insulator (b) flexible (c) electrical conductor (d) waterproof
  27. 27.Which of these needs a heat insulator? (a) a magnifier lens (b) a tea flask lining (c) a roof sheet (d) a window pane
  28. 28.True or false: a spectacle lens needs a waterproof material. (a) False (b) True
  29. 29.🧱 Which property matters most for an umbrella cover? (a) heat insulator (b) transparent (c) waterproof (d) electrical conductor
  30. 30.True or false: a tea flask lining needs a transparent material. (a) True (b) False
  31. 31.Which of these needs an electrical conductor? (a) a switch contact (b) a car windscreen (c) a tea flask lining (d) a car seat belt
  32. 32.🧱 Is rubber an electrical conductor or an insulator? (a) an insulator (b) a conductor
  33. 33.True or false: a roof sheet needs an electrical conductor. (a) False (b) True
  34. 34.🔍 Which is the odd one out? (a) clay pottery (b) brass (c) aluminium (d) copper
  35. 35.🔍 Which is the odd one out? (a) plastic (b) cotton cloth (c) iron (d) rubber
  36. 36.🔍 Which is the odd one out? (a) copper (b) graphite (c) dry wood (d) aluminium
  37. 37.🔍 Which is the odd one out? (a) plastic (b) brass (c) steel (d) iron
  38. 38.🧱 Is glass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  39. 39.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  40. 40.True or false: a tea flask lining needs a flexible material. (a) True (b) False

Answer key

  1. True
  2. heat insulator
  3. True
  4. an insulator
  5. the core of a wire
  6. waterproof
  7. flexible
  8. plastic-coated cloth
  9. False
  10. steel
  11. cotton cloth
  12. False
  13. False
  14. copper
  15. False
  16. wood or plastic
  17. a boat hull
  18. False
  19. a conductor
  20. a conductor
  21. flexible
  22. transparent
  23. a conductor
  24. an insulator
  25. steel
  26. waterproof
  27. a tea flask lining
  28. False
  29. waterproof
  30. False
  31. a switch contact
  32. an insulator
  33. False
  34. clay pottery
  35. iron
  36. dry wood
  37. plastic
  38. an insulator
  39. a conductor
  40. False

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