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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 652 · 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 iron an electrical conductor or an insulator? (a) a conductor (b) an insulator
  2. 2.True or false: a roof sheet needs a flexible material. (a) False (b) True
  3. 3.🧱 Which material is best for a window pane? (a) glass (b) brick (c) wood (d) steel
  4. 4.🧱 Which material is best for a raincoat? (a) paper (b) plastic-coated cloth (c) cardboard (d) cotton wool
  5. 5.🧱 Which property matters most for a window pane? (a) transparent (b) heat insulator (c) flexible (d) electrical conductor
  6. 6.🔍 Which is the odd one out? (a) iron (b) copper (c) dry wood (d) brass
  7. 7.Which of these needs a waterproof material? (a) a raincoat (b) the core of a wire (c) a skipping rope (d) a window pane
  8. 8.True or false: a magnifier lens needs a heat insulator. (a) True (b) False
  9. 9.True or false: an oven glove needs a transparent material. (a) True (b) False
  10. 10.True or false: an oven glove needs a heat insulator. (a) True (b) False
  11. 11.Which of these needs a heat insulator? (a) a car seat belt (b) an oven glove (c) a yoga mat (d) a car windscreen
  12. 12.Which of these needs a flexible material? (a) a roof sheet (b) a car windscreen (c) a plug pin (d) a yoga mat
  13. 13.🧱 Which property matters most for a raincoat? (a) electrical conductor (b) waterproof (c) heat insulator (d) transparent
  14. 14.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  15. 15.🧱 Which material is best for the bars inside concrete? (a) glass (b) rubber (c) plastic (d) steel
  16. 16.🔍 Which is the odd one out? (a) glass (b) iron (c) copper (d) brass
  17. 17.🧱 Which property matters most for a car seat belt? (a) waterproof (b) electrical conductor (c) transparent (d) flexible
  18. 18.True or false: a boat hull needs an electrical conductor. (a) True (b) False
  19. 19.True or false: an oven glove needs an electrical conductor. (a) True (b) False
  20. 20.🧱 Which material is best for a cooking pot handle? (a) iron (b) wood or plastic (c) aluminium (d) copper
  21. 21.True or false: a magnifier lens needs a waterproof material. (a) True (b) False
  22. 22.🧱 Which material is best for the core of an electric wire? (a) rubber (b) copper (c) glass (d) wood
  23. 23.🔍 Which is the odd one out? (a) brass (b) rubber (c) graphite (d) aluminium
  24. 24.Which of these needs a heat insulator? (a) a raincoat (b) a cooking pot handle (c) a car windscreen (d) a roof sheet
  25. 25.🧱 Is dry wood an electrical conductor or an insulator? (a) an insulator (b) a conductor
  26. 26.Which of these needs an electrical conductor? (a) a cooking pot handle (b) a window pane (c) a magnifier lens (d) a plug pin
  27. 27.🧱 Is graphite an electrical conductor or an insulator? (a) a conductor (b) an insulator
  28. 28.Which of these needs a transparent material? (a) a plug pin (b) a switch contact (c) a window pane (d) a raincoat
  29. 29.🔍 Which is the odd one out? (a) aluminium (b) dry wood (c) glass (d) plastic
  30. 30.🔍 Which is the odd one out? (a) copper (b) graphite (c) clay pottery (d) steel
  31. 31.True or false: an oven glove needs a waterproof material. (a) True (b) False
  32. 32.🧱 Which property matters most for a plug pin? (a) heat insulator (b) electrical conductor (c) waterproof (d) transparent
  33. 33.True or false: the core of a wire needs a waterproof material. (a) True (b) False
  34. 34.🧱 Which property matters most for a water tank? (a) transparent (b) waterproof (c) flexible (d) heat insulator
  35. 35.🧱 Which property matters most for a cooking pot handle? (a) waterproof (b) flexible (c) heat insulator (d) electrical conductor
  36. 36.🧱 Which property matters most for an oven glove? (a) heat insulator (b) flexible (c) waterproof (d) transparent
  37. 37.True or false: a raincoat needs a waterproof material. (a) False (b) True
  38. 38.True or false: a switch contact needs an electrical conductor. (a) False (b) True
  39. 39.🧱 Which property matters most for a skipping rope? (a) heat insulator (b) electrical conductor (c) waterproof (d) flexible
  40. 40.🧱 Which property matters most for the core of a wire? (a) heat insulator (b) transparent (c) electrical conductor (d) flexible

Answer key

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

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