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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 762 · 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 heat insulator. (a) True (b) False
  2. 2.Which of these needs a flexible material? (a) a yoga mat (b) a spectacle lens (c) a switch contact (d) an oven glove
  3. 3.🧱 Which property matters most for a roof sheet? (a) flexible (b) transparent (c) heat insulator (d) waterproof
  4. 4.🧱 Which property matters most for a magnifier lens? (a) heat insulator (b) transparent (c) electrical conductor (d) flexible
  5. 5.True or false: a plug pin needs an electrical conductor. (a) False (b) True
  6. 6.🧱 Which material is best for a window pane? (a) steel (b) brick (c) glass (d) wood
  7. 7.🔍 Which is the odd one out? (a) iron (b) glass (c) plastic (d) rubber
  8. 8.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
  9. 9.True or false: a skipping rope needs a flexible material. (a) False (b) True
  10. 10.🧱 Which material is best for the bars inside concrete? (a) plastic (b) glass (c) rubber (d) steel
  11. 11.True or false: a yoga mat needs an electrical conductor. (a) True (b) False
  12. 12.🧱 Which property matters most for a boat hull? (a) electrical conductor (b) transparent (c) flexible (d) waterproof
  13. 13.True or false: a hair band needs a flexible material. (a) False (b) True
  14. 14.True or false: a cooking pot handle needs a heat insulator. (a) False (b) True
  15. 15.True or false: a roof sheet needs an electrical conductor. (a) False (b) True
  16. 16.🔍 Which is the odd one out? (a) iron (b) dry wood (c) aluminium (d) graphite
  17. 17.🔍 Which is the odd one out? (a) brass (b) graphite (c) plastic (d) iron
  18. 18.Which of these needs an electrical conductor? (a) a car seat belt (b) a plug pin (c) a boat hull (d) a tea flask lining
  19. 19.True or false: a switch contact needs a waterproof material. (a) False (b) True
  20. 20.🧱 Which property matters most for a tea flask lining? (a) waterproof (b) flexible (c) electrical conductor (d) heat insulator
  21. 21.🧱 Which property matters most for a skipping rope? (a) electrical conductor (b) flexible (c) heat insulator (d) transparent
  22. 22.🔍 Which is the odd one out? (a) brass (b) aluminium (c) steel (d) glass
  23. 23.🧱 Which property matters most for an umbrella cover? (a) flexible (b) waterproof (c) electrical conductor (d) transparent
  24. 24.True or false: a window pane needs a waterproof material. (a) False (b) True
  25. 25.🧱 Which material is best for a raincoat? (a) cotton wool (b) cardboard (c) paper (d) plastic-coated cloth
  26. 26.🧱 Which property matters most for a window pane? (a) waterproof (b) heat insulator (c) transparent (d) flexible
  27. 27.Which of these needs a heat insulator? (a) a spectacle lens (b) a raincoat (c) a car seat belt (d) an oven glove
  28. 28.🧱 Which property matters most for a cooking pot handle? (a) flexible (b) electrical conductor (c) heat insulator (d) waterproof
  29. 29.🧱 Which property matters most for a car windscreen? (a) transparent (b) heat insulator (c) waterproof (d) flexible
  30. 30.🧱 Which property matters most for a plug pin? (a) waterproof (b) electrical conductor (c) flexible (d) transparent
  31. 31.🧱 Is copper an electrical conductor or an insulator? (a) a conductor (b) an insulator
  32. 32.🔍 Which is the odd one out? (a) clay pottery (b) plastic (c) glass (d) brass
  33. 33.🧱 Which material is best for the core of an electric wire? (a) wood (b) rubber (c) copper (d) glass
  34. 34.True or false: a car seat belt needs a flexible material. (a) False (b) True
  35. 35.True or false: a raincoat needs a waterproof material. (a) True (b) False
  36. 36.🔍 Which is the odd one out? (a) dry wood (b) plastic (c) aluminium (d) clay pottery
  37. 37.Which of these needs a transparent material? (a) a boat hull (b) a water tank (c) an umbrella cover (d) a spectacle lens
  38. 38.🧱 Is rubber an electrical conductor or an insulator? (a) an insulator (b) a conductor
  39. 39.True or false: a roof sheet needs a waterproof material. (a) False (b) True
  40. 40.Which of these needs a waterproof material? (a) a magnifier lens (b) a cooking pot handle (c) a plug pin (d) an umbrella cover

Answer key

  1. False
  2. a yoga mat
  3. waterproof
  4. transparent
  5. True
  6. glass
  7. iron
  8. a conductor
  9. True
  10. steel
  11. False
  12. waterproof
  13. True
  14. True
  15. False
  16. dry wood
  17. plastic
  18. a plug pin
  19. False
  20. heat insulator
  21. flexible
  22. glass
  23. waterproof
  24. False
  25. plastic-coated cloth
  26. transparent
  27. an oven glove
  28. heat insulator
  29. transparent
  30. electrical conductor
  31. a conductor
  32. brass
  33. copper
  34. True
  35. True
  36. aluminium
  37. a spectacle lens
  38. an insulator
  39. True
  40. an umbrella cover

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