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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 931 · 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 plastic an electrical conductor or an insulator? (a) an insulator (b) a conductor
  2. 2.🔍 Which is the odd one out? (a) dry wood (b) steel (c) plastic (d) rubber
  3. 3.🧱 Which property matters most for a boat hull? (a) waterproof (b) flexible (c) transparent (d) heat insulator
  4. 4.🔍 Which is the odd one out? (a) brass (b) aluminium (c) copper (d) plastic
  5. 5.🔍 Which is the odd one out? (a) clay pottery (b) aluminium (c) graphite (d) copper
  6. 6.🧱 Which property matters most for a roof sheet? (a) flexible (b) waterproof (c) electrical conductor (d) heat insulator
  7. 7.True or false: a car windscreen needs a flexible material. (a) False (b) True
  8. 8.🧱 Which property matters most for a car windscreen? (a) heat insulator (b) transparent (c) waterproof (d) flexible
  9. 9.True or false: a skipping rope needs a transparent material. (a) False (b) True
  10. 10.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  11. 11.🧱 Which property matters most for a yoga mat? (a) transparent (b) heat insulator (c) waterproof (d) flexible
  12. 12.🧱 Which material is best for the core of an electric wire? (a) wood (b) copper (c) rubber (d) glass
  13. 13.🔍 Which is the odd one out? (a) copper (b) cotton cloth (c) iron (d) graphite
  14. 14.🔍 Which is the odd one out? (a) aluminium (b) steel (c) graphite (d) glass
  15. 15.🧱 Which property matters most for a car seat belt? (a) heat insulator (b) electrical conductor (c) flexible (d) transparent
  16. 16.Which of these needs a transparent material? (a) a magnifier lens (b) a hair band (c) a switch contact (d) an oven glove
  17. 17.🧱 Which material is best for a raincoat? (a) cotton wool (b) cardboard (c) paper (d) plastic-coated cloth
  18. 18.🧱 Which material is best for a cooking pot handle? (a) wood or plastic (b) copper (c) iron (d) aluminium
  19. 19.True or false: a plug pin needs a transparent material. (a) True (b) False
  20. 20.🧱 Is aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
  21. 21.🔍 Which is the odd one out? (a) dry wood (b) copper (c) glass (d) clay pottery
  22. 22.🧱 Which property matters most for an umbrella cover? (a) heat insulator (b) flexible (c) electrical conductor (d) waterproof
  23. 23.Which of these needs a heat insulator? (a) the core of a wire (b) an oven glove (c) a roof sheet (d) a water tank
  24. 24.🧱 Is brass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  25. 25.True or false: a roof sheet needs a waterproof material. (a) False (b) True
  26. 26.🧱 Which material is best for the bars inside concrete? (a) plastic (b) rubber (c) steel (d) glass
  27. 27.🔍 Which is the odd one out? (a) glass (b) cotton cloth (c) dry wood (d) aluminium
  28. 28.🧱 Is rubber an electrical conductor or an insulator? (a) an insulator (b) a conductor
  29. 29.Which of these needs a flexible material? (a) a plug pin (b) a boat hull (c) a spectacle lens (d) a hair band
  30. 30.True or false: an umbrella cover needs a waterproof material. (a) True (b) False
  31. 31.🔍 Which is the odd one out? (a) aluminium (b) copper (c) rubber (d) graphite
  32. 32.Which of these needs a transparent material? (a) a car seat belt (b) a boat hull (c) a car windscreen (d) a tea flask lining
  33. 33.🧱 Which property matters most for a cooking pot handle? (a) waterproof (b) transparent (c) heat insulator (d) electrical conductor
  34. 34.True or false: a skipping rope needs a flexible material. (a) False (b) True
  35. 35.Which of these needs a transparent material? (a) a skipping rope (b) a water tank (c) a window pane (d) a cooking pot handle
  36. 36.True or false: a magnifier lens needs a transparent material. (a) True (b) False
  37. 37.🧱 Which material is best for a window pane? (a) glass (b) wood (c) steel (d) brick
  38. 38.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  39. 39.🧱 Which property matters most for the core of a wire? (a) heat insulator (b) transparent (c) waterproof (d) electrical conductor
  40. 40.True or false: an oven glove needs a heat insulator. (a) False (b) True

Answer key

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

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