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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 350 · 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 material is best for the core of an electric wire? (a) glass (b) wood (c) copper (d) rubber
  2. 2.🔍 Which is the odd one out? (a) rubber (b) glass (c) dry wood (d) iron
  3. 3.🔍 Which is the odd one out? (a) graphite (b) clay pottery (c) rubber (d) glass
  4. 4.Which of these needs a waterproof material? (a) an oven glove (b) a roof sheet (c) a magnifier lens (d) a plug pin
  5. 5.True or false: a spectacle lens needs a transparent material. (a) False (b) True
  6. 6.🧱 Which property matters most for a car windscreen? (a) waterproof (b) transparent (c) heat insulator (d) flexible
  7. 7.🧱 Is rubber an electrical conductor or an insulator? (a) a conductor (b) an insulator
  8. 8.🧱 Which property matters most for an oven glove? (a) flexible (b) waterproof (c) heat insulator (d) transparent
  9. 9.True or false: a cooking pot handle needs a heat insulator. (a) True (b) False
  10. 10.🧱 Is clay pottery an electrical conductor or an insulator? (a) a conductor (b) an insulator
  11. 11.True or false: a magnifier lens needs a waterproof material. (a) False (b) True
  12. 12.True or false: a car seat belt needs a transparent material. (a) False (b) True
  13. 13.Which of these needs a waterproof material? (a) a car windscreen (b) a spectacle lens (c) a boat hull (d) a magnifier lens
  14. 14.🧱 Which property matters most for a spectacle lens? (a) waterproof (b) transparent (c) flexible (d) heat insulator
  15. 15.🧱 Which property matters most for a magnifier lens? (a) heat insulator (b) transparent (c) electrical conductor (d) waterproof
  16. 16.🧱 Which material is best for a cooking pot handle? (a) wood or plastic (b) copper (c) iron (d) aluminium
  17. 17.True or false: a skipping rope needs an electrical conductor. (a) True (b) False
  18. 18.Which of these needs a flexible material? (a) an umbrella cover (b) an oven glove (c) a hair band (d) a plug pin
  19. 19.🧱 Which property matters most for a water tank? (a) heat insulator (b) electrical conductor (c) transparent (d) waterproof
  20. 20.🧱 Is brass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  21. 21.🔍 Which is the odd one out? (a) brass (b) rubber (c) steel (d) iron
  22. 22.🧱 Which property matters most for a raincoat? (a) waterproof (b) electrical conductor (c) heat insulator (d) transparent
  23. 23.🧱 Which property matters most for the core of a wire? (a) waterproof (b) transparent (c) electrical conductor (d) heat insulator
  24. 24.🧱 Which property matters most for a switch contact? (a) flexible (b) electrical conductor (c) heat insulator (d) transparent
  25. 25.Which of these needs a waterproof material? (a) a window pane (b) a yoga mat (c) a spectacle lens (d) a raincoat
  26. 26.Which of these needs a transparent material? (a) a car seat belt (b) a yoga mat (c) a cooking pot handle (d) a window pane
  27. 27.🔍 Which is the odd one out? (a) plastic (b) brass (c) iron (d) copper
  28. 28.🧱 Is graphite an electrical conductor or an insulator? (a) a conductor (b) an insulator
  29. 29.🔍 Which is the odd one out? (a) steel (b) aluminium (c) brass (d) clay pottery
  30. 30.🧱 Which material is best for a window pane? (a) glass (b) wood (c) steel (d) brick
  31. 31.True or false: a boat hull needs a flexible material. (a) False (b) True
  32. 32.True or false: a water tank needs a waterproof material. (a) False (b) True
  33. 33.🧱 Is dry wood an electrical conductor or an insulator? (a) a conductor (b) an insulator
  34. 34.🧱 Which property matters most for a roof sheet? (a) transparent (b) waterproof (c) flexible (d) electrical conductor
  35. 35.🔍 Which is the odd one out? (a) iron (b) copper (c) dry wood (d) graphite
  36. 36.True or false: a yoga mat needs a flexible material. (a) True (b) False
  37. 37.🧱 Which material is best for a raincoat? (a) cardboard (b) cotton wool (c) paper (d) plastic-coated cloth
  38. 38.🧱 Which material is best for the bars inside concrete? (a) steel (b) rubber (c) glass (d) plastic
  39. 39.True or false: a boat hull needs a waterproof material. (a) False (b) True
  40. 40.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor

Answer key

  1. copper
  2. iron
  3. graphite
  4. a roof sheet
  5. True
  6. transparent
  7. an insulator
  8. heat insulator
  9. True
  10. an insulator
  11. False
  12. False
  13. a boat hull
  14. transparent
  15. transparent
  16. wood or plastic
  17. False
  18. a hair band
  19. waterproof
  20. a conductor
  21. rubber
  22. waterproof
  23. electrical conductor
  24. electrical conductor
  25. a raincoat
  26. a window pane
  27. plastic
  28. a conductor
  29. clay pottery
  30. glass
  31. False
  32. True
  33. an insulator
  34. waterproof
  35. dry wood
  36. True
  37. plastic-coated cloth
  38. steel
  39. True
  40. a conductor

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