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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 155 · 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 a raincoat? (a) paper (b) cardboard (c) cotton wool (d) plastic-coated cloth
  2. 2.Which of these needs a waterproof material? (a) an umbrella cover (b) a skipping rope (c) a magnifier lens (d) a cooking pot handle
  3. 3.Which of these needs a waterproof material? (a) a plug pin (b) a magnifier lens (c) a boat hull (d) a yoga mat
  4. 4.🧱 Is graphite an electrical conductor or an insulator? (a) a conductor (b) an insulator
  5. 5.🧱 Which material is best for the core of an electric wire? (a) glass (b) wood (c) copper (d) rubber
  6. 6.🔍 Which is the odd one out? (a) cotton cloth (b) rubber (c) copper (d) plastic
  7. 7.🧱 Which material is best for a cooking pot handle? (a) wood or plastic (b) copper (c) aluminium (d) iron
  8. 8.🧱 Is clay pottery an electrical conductor or an insulator? (a) a conductor (b) an insulator
  9. 9.Which of these needs a waterproof material? (a) an oven glove (b) a cooking pot handle (c) a plug pin (d) a water tank
  10. 10.🔍 Which is the odd one out? (a) brass (b) plastic (c) copper (d) graphite
  11. 11.Which of these needs an electrical conductor? (a) a boat hull (b) a skipping rope (c) a car seat belt (d) a plug pin
  12. 12.True or false: a boat hull needs an electrical conductor. (a) False (b) True
  13. 13.True or false: a roof sheet needs a waterproof material. (a) False (b) True
  14. 14.🧱 Is steel an electrical conductor or an insulator? (a) a conductor (b) an insulator
  15. 15.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  16. 16.🧱 Which property matters most for a yoga mat? (a) flexible (b) waterproof (c) electrical conductor (d) heat insulator
  17. 17.🧱 Which property matters most for a car seat belt? (a) transparent (b) flexible (c) heat insulator (d) waterproof
  18. 18.🔍 Which is the odd one out? (a) rubber (b) cotton cloth (c) iron (d) glass
  19. 19.🧱 Which property matters most for a roof sheet? (a) flexible (b) heat insulator (c) waterproof (d) transparent
  20. 20.True or false: a yoga mat needs a flexible material. (a) True (b) False
  21. 21.True or false: a water tank needs an electrical conductor. (a) True (b) False
  22. 22.🧱 Which property matters most for a hair band? (a) waterproof (b) heat insulator (c) transparent (d) flexible
  23. 23.🔍 Which is the odd one out? (a) iron (b) dry wood (c) aluminium (d) steel
  24. 24.🧱 Which material is best for a window pane? (a) steel (b) brick (c) glass (d) wood
  25. 25.Which of these needs a waterproof material? (a) a magnifier lens (b) a roof sheet (c) a plug pin (d) a switch contact
  26. 26.🧱 Which property matters most for a spectacle lens? (a) electrical conductor (b) transparent (c) waterproof (d) heat insulator
  27. 27.🧱 Which property matters most for a window pane? (a) transparent (b) waterproof (c) heat insulator (d) flexible
  28. 28.🧱 Which property matters most for an oven glove? (a) transparent (b) electrical conductor (c) heat insulator (d) flexible
  29. 29.True or false: a window pane needs a transparent material. (a) False (b) True
  30. 30.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  31. 31.🧱 Which property matters most for a water tank? (a) transparent (b) waterproof (c) heat insulator (d) flexible
  32. 32.True or false: a yoga mat needs a heat insulator. (a) True (b) False
  33. 33.🧱 Which property matters most for a plug pin? (a) flexible (b) heat insulator (c) transparent (d) electrical conductor
  34. 34.True or false: a car windscreen needs a transparent material. (a) False (b) True
  35. 35.True or false: a window pane needs a waterproof material. (a) False (b) True
  36. 36.🧱 Which property matters most for a tea flask lining? (a) electrical conductor (b) heat insulator (c) transparent (d) flexible
  37. 37.Which of these needs a heat insulator? (a) a boat hull (b) a switch contact (c) a raincoat (d) an oven glove
  38. 38.🔍 Which is the odd one out? (a) glass (b) brass (c) copper (d) steel
  39. 39.🧱 Which property matters most for a cooking pot handle? (a) heat insulator (b) waterproof (c) electrical conductor (d) flexible
  40. 40.🧱 Which material is best for the bars inside concrete? (a) rubber (b) plastic (c) steel (d) glass

Answer key

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

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