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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 340 · 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 of these needs a waterproof material? (a) a car seat belt (b) a car windscreen (c) a spectacle lens (d) a roof sheet
  2. 2.True or false: a plug pin needs an electrical conductor. (a) True (b) False
  3. 3.🧱 Which material is best for the bars inside concrete? (a) glass (b) steel (c) plastic (d) rubber
  4. 4.🧱 Which material is best for a window pane? (a) glass (b) steel (c) wood (d) brick
  5. 5.🧱 Which property matters most for a hair band? (a) waterproof (b) electrical conductor (c) flexible (d) transparent
  6. 6.🧱 Is iron an electrical conductor or an insulator? (a) a conductor (b) an insulator
  7. 7.🧱 Which property matters most for a car seat belt? (a) transparent (b) heat insulator (c) waterproof (d) flexible
  8. 8.🧱 Which material is best for a raincoat? (a) plastic-coated cloth (b) paper (c) cardboard (d) cotton wool
  9. 9.🧱 Which property matters most for a magnifier lens? (a) waterproof (b) transparent (c) electrical conductor (d) heat insulator
  10. 10.🧱 Is cotton cloth an electrical conductor or an insulator? (a) a conductor (b) an insulator
  11. 11.🧱 Which property matters most for a window pane? (a) electrical conductor (b) transparent (c) heat insulator (d) flexible
  12. 12.Which of these needs a heat insulator? (a) a yoga mat (b) a tea flask lining (c) a car seat belt (d) a switch contact
  13. 13.🧱 Is graphite an electrical conductor or an insulator? (a) an insulator (b) a conductor
  14. 14.🧱 Which material is best for the core of an electric wire? (a) wood (b) glass (c) copper (d) rubber
  15. 15.True or false: a roof sheet needs a waterproof material. (a) False (b) True
  16. 16.🧱 Is dry wood an electrical conductor or an insulator? (a) a conductor (b) an insulator
  17. 17.🧱 Is clay pottery an electrical conductor or an insulator? (a) a conductor (b) an insulator
  18. 18.True or false: the core of a wire needs a heat insulator. (a) False (b) True
  19. 19.Which of these needs a waterproof material? (a) a boat hull (b) a tea flask lining (c) a car seat belt (d) a cooking pot handle
  20. 20.True or false: the core of a wire needs a transparent material. (a) True (b) False
  21. 21.🔍 Which is the odd one out? (a) glass (b) dry wood (c) clay pottery (d) aluminium
  22. 22.True or false: a window pane needs an electrical conductor. (a) True (b) False
  23. 23.True or false: a water tank needs a transparent material. (a) True (b) False
  24. 24.🧱 Is brass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  25. 25.🔍 Which is the odd one out? (a) dry wood (b) graphite (c) steel (d) brass
  26. 26.🔍 Which is the odd one out? (a) iron (b) rubber (c) aluminium (d) copper
  27. 27.Which of these needs a heat insulator? (a) an oven glove (b) a car windscreen (c) a raincoat (d) a roof sheet
  28. 28.True or false: a magnifier lens needs a waterproof material. (a) False (b) True
  29. 29.🧱 Which property matters most for a tea flask lining? (a) electrical conductor (b) heat insulator (c) waterproof (d) flexible
  30. 30.Which of these needs an electrical conductor? (a) a skipping rope (b) the core of a wire (c) a water tank (d) a car windscreen
  31. 31.🧱 Which property matters most for a skipping rope? (a) waterproof (b) flexible (c) electrical conductor (d) transparent
  32. 32.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
  33. 33.🧱 Which property matters most for a water tank? (a) transparent (b) flexible (c) waterproof (d) heat insulator
  34. 34.🧱 Which property matters most for a roof sheet? (a) heat insulator (b) flexible (c) transparent (d) waterproof
  35. 35.True or false: a water tank needs a flexible material. (a) False (b) True
  36. 36.🧱 Which material is best for a cooking pot handle? (a) copper (b) aluminium (c) iron (d) wood or plastic
  37. 37.True or false: a car seat belt needs a flexible material. (a) False (b) True
  38. 38.🧱 Is copper an electrical conductor or an insulator? (a) a conductor (b) an insulator
  39. 39.🔍 Which is the odd one out? (a) dry wood (b) glass (c) plastic (d) copper
  40. 40.True or false: an umbrella cover needs an electrical conductor. (a) False (b) True

Answer key

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

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