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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 819 · 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 umbrella cover? (a) flexible (b) waterproof (c) heat insulator (d) transparent
  2. 2.True or false: a hair band needs a flexible material. (a) True (b) False
  3. 3.🧱 Is plastic an electrical conductor or an insulator? (a) an insulator (b) a conductor
  4. 4.True or false: an umbrella cover needs a flexible material. (a) True (b) False
  5. 5.Which of these needs a transparent material? (a) a tea flask lining (b) a water tank (c) a window pane (d) a roof sheet
  6. 6.True or false: an oven glove needs a heat insulator. (a) True (b) False
  7. 7.True or false: a roof sheet needs a heat insulator. (a) True (b) False
  8. 8.True or false: a car seat belt needs a transparent material. (a) False (b) True
  9. 9.True or false: a car windscreen needs a transparent material. (a) False (b) True
  10. 10.🧱 Which material is best for a window pane? (a) steel (b) glass (c) brick (d) wood
  11. 11.True or false: a tea flask lining needs a heat insulator. (a) True (b) False
  12. 12.🧱 Is glass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  13. 13.True or false: a car windscreen needs a heat insulator. (a) True (b) False
  14. 14.🧱 Which property matters most for the core of a wire? (a) transparent (b) electrical conductor (c) heat insulator (d) waterproof
  15. 15.🧱 Which material is best for a cooking pot handle? (a) copper (b) aluminium (c) wood or plastic (d) iron
  16. 16.🧱 Which material is best for a raincoat? (a) plastic-coated cloth (b) cardboard (c) paper (d) cotton wool
  17. 17.Which of these needs a waterproof material? (a) an oven glove (b) a car seat belt (c) a water tank (d) a spectacle lens
  18. 18.🧱 Which property matters most for a water tank? (a) waterproof (b) electrical conductor (c) flexible (d) transparent
  19. 19.🧱 Is iron an electrical conductor or an insulator? (a) a conductor (b) an insulator
  20. 20.🧱 Which material is best for the core of an electric wire? (a) wood (b) copper (c) rubber (d) glass
  21. 21.Which of these needs a transparent material? (a) a car seat belt (b) a magnifier lens (c) a cooking pot handle (d) a water tank
  22. 22.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  23. 23.🧱 Which property matters most for a plug pin? (a) flexible (b) heat insulator (c) electrical conductor (d) transparent
  24. 24.Which of these needs a waterproof material? (a) a hair band (b) a roof sheet (c) an oven glove (d) the core of a wire
  25. 25.Which of these needs a flexible material? (a) an oven glove (b) a raincoat (c) a skipping rope (d) a spectacle lens
  26. 26.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  27. 27.🔍 Which is the odd one out? (a) dry wood (b) cotton cloth (c) iron (d) glass
  28. 28.True or false: a window pane needs a waterproof material. (a) True (b) False
  29. 29.🧱 Which property matters most for a roof sheet? (a) flexible (b) electrical conductor (c) waterproof (d) heat insulator
  30. 30.True or false: a boat hull needs a flexible material. (a) False (b) True
  31. 31.True or false: a skipping rope needs a flexible material. (a) False (b) True
  32. 32.True or false: a magnifier lens needs a transparent material. (a) False (b) True
  33. 33.True or false: a roof sheet needs a waterproof material. (a) False (b) True
  34. 34.🧱 Which property matters most for a hair band? (a) flexible (b) transparent (c) electrical conductor (d) heat insulator
  35. 35.🧱 Is steel an electrical conductor or an insulator? (a) a conductor (b) an insulator
  36. 36.🧱 Is dry wood an electrical conductor or an insulator? (a) an insulator (b) a conductor
  37. 37.🔍 Which is the odd one out? (a) steel (b) iron (c) glass (d) graphite
  38. 38.🧱 Which property matters most for a skipping rope? (a) electrical conductor (b) heat insulator (c) transparent (d) flexible
  39. 39.🧱 Which property matters most for a boat hull? (a) transparent (b) heat insulator (c) waterproof (d) electrical conductor
  40. 40.🧱 Which property matters most for a switch contact? (a) heat insulator (b) waterproof (c) electrical conductor (d) transparent

Answer key

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

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