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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 70 · 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 an oven glove? (a) heat insulator (b) flexible (c) electrical conductor (d) transparent
  2. 2.True or false: a hair band needs a transparent material. (a) False (b) True
  3. 3.🧱 Which property matters most for a boat hull? (a) flexible (b) heat insulator (c) electrical conductor (d) waterproof
  4. 4.🧱 Is glass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  5. 5.True or false: a car windscreen needs a flexible material. (a) True (b) False
  6. 6.🧱 Which property matters most for an umbrella cover? (a) waterproof (b) flexible (c) heat insulator (d) electrical conductor
  7. 7.🧱 Which property matters most for the core of a wire? (a) transparent (b) heat insulator (c) flexible (d) electrical conductor
  8. 8.🧱 Which property matters most for a window pane? (a) heat insulator (b) transparent (c) flexible (d) waterproof
  9. 9.🔍 Which is the odd one out? (a) copper (b) graphite (c) plastic (d) iron
  10. 10.True or false: an umbrella cover needs a waterproof material. (a) False (b) True
  11. 11.🧱 Which property matters most for a skipping rope? (a) transparent (b) electrical conductor (c) flexible (d) waterproof
  12. 12.🧱 Which property matters most for a raincoat? (a) heat insulator (b) flexible (c) electrical conductor (d) waterproof
  13. 13.True or false: a plug pin needs an electrical conductor. (a) True (b) False
  14. 14.🔍 Which is the odd one out? (a) rubber (b) cotton cloth (c) glass (d) steel
  15. 15.🧱 Which material is best for a raincoat? (a) cotton wool (b) cardboard (c) paper (d) plastic-coated cloth
  16. 16.True or false: a spectacle lens needs a heat insulator. (a) True (b) False
  17. 17.🧱 Which property matters most for a magnifier lens? (a) transparent (b) waterproof (c) heat insulator (d) flexible
  18. 18.🔍 Which is the odd one out? (a) iron (b) copper (c) rubber (d) graphite
  19. 19.🧱 Which material is best for a cooking pot handle? (a) copper (b) aluminium (c) iron (d) wood or plastic
  20. 20.🧱 Which material is best for a window pane? (a) steel (b) wood (c) glass (d) brick
  21. 21.🧱 Is clay pottery an electrical conductor or an insulator? (a) an insulator (b) a conductor
  22. 22.True or false: a window pane needs a heat insulator. (a) False (b) True
  23. 23.🧱 Which property matters most for a car windscreen? (a) transparent (b) heat insulator (c) waterproof (d) electrical conductor
  24. 24.🔍 Which is the odd one out? (a) plastic (b) clay pottery (c) glass (d) iron
  25. 25.True or false: a spectacle lens needs a waterproof material. (a) False (b) True
  26. 26.🧱 Which property matters most for a plug pin? (a) waterproof (b) flexible (c) electrical conductor (d) heat insulator
  27. 27.🧱 Which property matters most for a spectacle lens? (a) flexible (b) waterproof (c) transparent (d) electrical conductor
  28. 28.🔍 Which is the odd one out? (a) steel (b) glass (c) graphite (d) aluminium
  29. 29.True or false: a switch contact needs an electrical conductor. (a) True (b) False
  30. 30.Which of these needs a transparent material? (a) a magnifier lens (b) a hair band (c) a tea flask lining (d) a skipping rope
  31. 31.🧱 Which property matters most for a cooking pot handle? (a) heat insulator (b) electrical conductor (c) waterproof (d) transparent
  32. 32.True or false: an oven glove needs a heat insulator. (a) False (b) True
  33. 33.True or false: a boat hull needs a waterproof material. (a) True (b) False
  34. 34.🔍 Which is the odd one out? (a) aluminium (b) cotton cloth (c) steel (d) brass
  35. 35.🧱 Which material is best for the core of an electric wire? (a) copper (b) glass (c) rubber (d) wood
  36. 36.🧱 Which material is best for the bars inside concrete? (a) plastic (b) steel (c) rubber (d) glass
  37. 37.🧱 Which property matters most for a roof sheet? (a) waterproof (b) transparent (c) flexible (d) electrical conductor
  38. 38.True or false: a magnifier lens needs a heat insulator. (a) True (b) False
  39. 39.Which of these needs a transparent material? (a) a hair band (b) a car windscreen (c) a yoga mat (d) a cooking pot handle
  40. 40.Which of these needs a flexible material? (a) a magnifier lens (b) a skipping rope (c) a window pane (d) a cooking pot handle

Answer key

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

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