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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 723 · 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 property matters most for a car windscreen? (a) heat insulator (b) electrical conductor (c) transparent (d) waterproof
  2. 2.Which of these needs a flexible material? (a) a roof sheet (b) a switch contact (c) a spectacle lens (d) a hair band
  3. 3.🧱 Which property matters most for a raincoat? (a) flexible (b) waterproof (c) heat insulator (d) electrical conductor
  4. 4.Which of these needs a flexible material? (a) a magnifier lens (b) a roof sheet (c) a car seat belt (d) a cooking pot handle
  5. 5.🧱 Which property matters most for a magnifier lens? (a) heat insulator (b) transparent (c) flexible (d) waterproof
  6. 6.True or false: a switch contact needs a transparent material. (a) False (b) True
  7. 7.🧱 Is aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
  8. 8.True or false: a cooking pot handle needs a flexible material. (a) True (b) False
  9. 9.Which of these needs a transparent material? (a) a window pane (b) a car seat belt (c) a cooking pot handle (d) a tea flask lining
  10. 10.🧱 Is rubber an electrical conductor or an insulator? (a) an insulator (b) a conductor
  11. 11.🧱 Which property matters most for a water tank? (a) flexible (b) electrical conductor (c) waterproof (d) heat insulator
  12. 12.🧱 Which material is best for a cooking pot handle? (a) aluminium (b) iron (c) wood or plastic (d) copper
  13. 13.Which of these needs an electrical conductor? (a) a boat hull (b) the core of a wire (c) a water tank (d) a spectacle lens
  14. 14.🧱 Which property matters most for the core of a wire? (a) flexible (b) electrical conductor (c) heat insulator (d) transparent
  15. 15.🧱 Which material is best for the core of an electric wire? (a) glass (b) copper (c) rubber (d) wood
  16. 16.Which of these needs a transparent material? (a) a car seat belt (b) an umbrella cover (c) the core of a wire (d) a spectacle lens
  17. 17.True or false: a switch contact needs an electrical conductor. (a) True (b) False
  18. 18.True or false: a water tank needs a transparent material. (a) True (b) False
  19. 19.🧱 Which property matters most for a hair band? (a) flexible (b) waterproof (c) transparent (d) heat insulator
  20. 20.Which of these needs a transparent material? (a) a car seat belt (b) an umbrella cover (c) a car windscreen (d) an oven glove
  21. 21.🧱 Is dry wood an electrical conductor or an insulator? (a) a conductor (b) an insulator
  22. 22.🔍 Which is the odd one out? (a) aluminium (b) brass (c) clay pottery (d) graphite
  23. 23.🧱 Which property matters most for a spectacle lens? (a) heat insulator (b) electrical conductor (c) transparent (d) waterproof
  24. 24.🧱 Which material is best for the bars inside concrete? (a) plastic (b) rubber (c) glass (d) steel
  25. 25.🔍 Which is the odd one out? (a) copper (b) dry wood (c) plastic (d) glass
  26. 26.🔍 Which is the odd one out? (a) aluminium (b) rubber (c) clay pottery (d) dry wood
  27. 27.Which of these needs a waterproof material? (a) a yoga mat (b) a car seat belt (c) a cooking pot handle (d) a boat hull
  28. 28.Which of these needs a heat insulator? (a) a raincoat (b) a roof sheet (c) an oven glove (d) a water tank
  29. 29.🔍 Which is the odd one out? (a) glass (b) clay pottery (c) rubber (d) steel
  30. 30.True or false: an umbrella cover needs a waterproof material. (a) True (b) False
  31. 31.Which of these needs a waterproof material? (a) a car windscreen (b) a water tank (c) a cooking pot handle (d) a car seat belt
  32. 32.🧱 Which material is best for a window pane? (a) brick (b) glass (c) wood (d) steel
  33. 33.🧱 Is clay pottery an electrical conductor or an insulator? (a) a conductor (b) an insulator
  34. 34.🧱 Which property matters most for a tea flask lining? (a) transparent (b) flexible (c) electrical conductor (d) heat insulator
  35. 35.True or false: a magnifier lens needs a heat insulator. (a) False (b) True
  36. 36.🧱 Which property matters most for an oven glove? (a) electrical conductor (b) flexible (c) heat insulator (d) waterproof
  37. 37.🧱 Which property matters most for a roof sheet? (a) flexible (b) heat insulator (c) transparent (d) waterproof
  38. 38.Which of these needs an electrical conductor? (a) a car seat belt (b) a magnifier lens (c) a plug pin (d) a roof sheet
  39. 39.True or false: a yoga mat needs a flexible material. (a) False (b) True
  40. 40.🔍 Which is the odd one out? (a) graphite (b) copper (c) steel (d) rubber

Answer key

  1. transparent
  2. a hair band
  3. waterproof
  4. a car seat belt
  5. transparent
  6. False
  7. a conductor
  8. False
  9. a window pane
  10. an insulator
  11. waterproof
  12. wood or plastic
  13. the core of a wire
  14. electrical conductor
  15. copper
  16. a spectacle lens
  17. True
  18. False
  19. flexible
  20. a car windscreen
  21. an insulator
  22. clay pottery
  23. transparent
  24. steel
  25. copper
  26. aluminium
  27. a boat hull
  28. an oven glove
  29. steel
  30. True
  31. a water tank
  32. glass
  33. an insulator
  34. heat insulator
  35. False
  36. heat insulator
  37. waterproof
  38. a plug pin
  39. True
  40. rubber

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