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Engineering Worksheet: Materials

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

Answer key

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

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