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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 159 · 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 roof sheet? (a) flexible (b) electrical conductor (c) transparent (d) waterproof
  2. 2.🔍 Which is the odd one out? (a) iron (b) cotton cloth (c) copper (d) graphite
  3. 3.Which of these needs a transparent material? (a) a spectacle lens (b) a car seat belt (c) a plug pin (d) a switch contact
  4. 4.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  5. 5.Which of these needs a heat insulator? (a) a skipping rope (b) a magnifier lens (c) a window pane (d) a tea flask lining
  6. 6.🔍 Which is the odd one out? (a) dry wood (b) copper (c) aluminium (d) graphite
  7. 7.Which of these needs a transparent material? (a) a car windscreen (b) a cooking pot handle (c) a plug pin (d) a boat hull
  8. 8.Which of these needs an electrical conductor? (a) a plug pin (b) a boat hull (c) a water tank (d) an oven glove
  9. 9.🧱 Which material is best for the core of an electric wire? (a) rubber (b) wood (c) copper (d) glass
  10. 10.🧱 Which property matters most for a boat hull? (a) transparent (b) waterproof (c) flexible (d) heat insulator
  11. 11.🔍 Which is the odd one out? (a) plastic (b) steel (c) dry wood (d) glass
  12. 12.True or false: an umbrella cover needs a flexible material. (a) True (b) False
  13. 13.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  14. 14.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
  15. 15.🧱 Which material is best for a window pane? (a) brick (b) steel (c) glass (d) wood
  16. 16.🧱 Which property matters most for a switch contact? (a) transparent (b) heat insulator (c) electrical conductor (d) waterproof
  17. 17.🔍 Which is the odd one out? (a) rubber (b) dry wood (c) plastic (d) brass
  18. 18.Which of these needs a heat insulator? (a) a cooking pot handle (b) a plug pin (c) an umbrella cover (d) a yoga mat
  19. 19.True or false: the core of a wire needs an electrical conductor. (a) True (b) False
  20. 20.True or false: a raincoat needs a heat insulator. (a) True (b) False
  21. 21.🔍 Which is the odd one out? (a) glass (b) rubber (c) plastic (d) graphite
  22. 22.🧱 Which material is best for a cooking pot handle? (a) copper (b) wood or plastic (c) iron (d) aluminium
  23. 23.True or false: a yoga mat needs a flexible material. (a) False (b) True
  24. 24.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  25. 25.True or false: a raincoat needs a flexible material. (a) True (b) False
  26. 26.True or false: a window pane needs a transparent material. (a) True (b) False
  27. 27.True or false: an umbrella cover needs an electrical conductor. (a) False (b) True
  28. 28.🧱 Is cotton cloth an electrical conductor or an insulator? (a) an insulator (b) a conductor
  29. 29.True or false: a skipping rope needs a flexible material. (a) True (b) False
  30. 30.🔍 Which is the odd one out? (a) iron (b) brass (c) plastic (d) steel
  31. 31.🧱 Which property matters most for a cooking pot handle? (a) flexible (b) waterproof (c) heat insulator (d) electrical conductor
  32. 32.Which of these needs a waterproof material? (a) a skipping rope (b) a hair band (c) the core of a wire (d) an umbrella cover
  33. 33.Which of these needs a heat insulator? (a) a switch contact (b) a yoga mat (c) an oven glove (d) a hair band
  34. 34.🧱 Which material is best for a raincoat? (a) plastic-coated cloth (b) paper (c) cardboard (d) cotton wool
  35. 35.🔍 Which is the odd one out? (a) rubber (b) dry wood (c) clay pottery (d) aluminium
  36. 36.True or false: a car seat belt needs a flexible material. (a) True (b) False
  37. 37.Which of these needs an electrical conductor? (a) a spectacle lens (b) a cooking pot handle (c) a switch contact (d) a skipping rope
  38. 38.🧱 Which material is best for the bars inside concrete? (a) steel (b) rubber (c) plastic (d) glass
  39. 39.Which of these needs a waterproof material? (a) a roof sheet (b) a magnifier lens (c) a hair band (d) a plug pin
  40. 40.🧱 Which property matters most for a tea flask lining? (a) electrical conductor (b) heat insulator (c) waterproof (d) transparent

Answer key

  1. waterproof
  2. cotton cloth
  3. a spectacle lens
  4. a conductor
  5. a tea flask lining
  6. dry wood
  7. a car windscreen
  8. a plug pin
  9. copper
  10. waterproof
  11. steel
  12. False
  13. a conductor
  14. an insulator
  15. glass
  16. electrical conductor
  17. brass
  18. a cooking pot handle
  19. True
  20. False
  21. graphite
  22. wood or plastic
  23. True
  24. a conductor
  25. False
  26. True
  27. False
  28. an insulator
  29. True
  30. plastic
  31. heat insulator
  32. an umbrella cover
  33. an oven glove
  34. plastic-coated cloth
  35. aluminium
  36. True
  37. a switch contact
  38. steel
  39. a roof sheet
  40. heat insulator

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