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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 567 · 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) heat insulator (d) waterproof
  2. 2.🧱 Which property matters most for a skipping rope? (a) heat insulator (b) electrical conductor (c) waterproof (d) flexible
  3. 3.🧱 Which material is best for a window pane? (a) glass (b) brick (c) wood (d) steel
  4. 4.🔍 Which is the odd one out? (a) plastic (b) copper (c) aluminium (d) iron
  5. 5.True or false: a tea flask lining needs an electrical conductor. (a) True (b) False
  6. 6.🧱 Which material is best for the core of an electric wire? (a) glass (b) wood (c) copper (d) rubber
  7. 7.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
  8. 8.🧱 Which property matters most for a raincoat? (a) flexible (b) electrical conductor (c) waterproof (d) heat insulator
  9. 9.Which of these needs a transparent material? (a) a raincoat (b) a window pane (c) a water tank (d) a plug pin
  10. 10.True or false: an oven glove needs a waterproof material. (a) False (b) True
  11. 11.🧱 Which material is best for a raincoat? (a) cotton wool (b) paper (c) cardboard (d) plastic-coated cloth
  12. 12.🧱 Which property matters most for a tea flask lining? (a) transparent (b) waterproof (c) electrical conductor (d) heat insulator
  13. 13.🧱 Is cotton cloth an electrical conductor or an insulator? (a) a conductor (b) an insulator
  14. 14.🧱 Is dry wood an electrical conductor or an insulator? (a) a conductor (b) an insulator
  15. 15.Which of these needs a waterproof material? (a) a window pane (b) an oven glove (c) an umbrella cover (d) a spectacle lens
  16. 16.True or false: a skipping rope needs a flexible material. (a) False (b) True
  17. 17.True or false: a car seat belt needs a flexible material. (a) False (b) True
  18. 18.True or false: an umbrella cover needs a waterproof material. (a) True (b) False
  19. 19.True or false: a hair band needs an electrical conductor. (a) True (b) False
  20. 20.Which of these needs an electrical conductor? (a) a car windscreen (b) a yoga mat (c) a switch contact (d) a roof sheet
  21. 21.True or false: a water tank needs a flexible material. (a) True (b) False
  22. 22.🧱 Is steel an electrical conductor or an insulator? (a) a conductor (b) an insulator
  23. 23.🧱 Which property matters most for a switch contact? (a) electrical conductor (b) flexible (c) transparent (d) heat insulator
  24. 24.🔍 Which is the odd one out? (a) steel (b) graphite (c) cotton cloth (d) aluminium
  25. 25.🧱 Which property matters most for the core of a wire? (a) waterproof (b) electrical conductor (c) heat insulator (d) flexible
  26. 26.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  27. 27.Which of these needs a transparent material? (a) the core of a wire (b) a car seat belt (c) a cooking pot handle (d) a spectacle lens
  28. 28.🧱 Which property matters most for a water tank? (a) waterproof (b) heat insulator (c) electrical conductor (d) transparent
  29. 29.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
  30. 30.🧱 Which property matters most for a car seat belt? (a) flexible (b) electrical conductor (c) heat insulator (d) waterproof
  31. 31.🔍 Which is the odd one out? (a) clay pottery (b) plastic (c) cotton cloth (d) steel
  32. 32.True or false: a switch contact needs a waterproof material. (a) True (b) False
  33. 33.Which of these needs a transparent material? (a) a yoga mat (b) a cooking pot handle (c) an umbrella cover (d) a car windscreen
  34. 34.🧱 Which material is best for the bars inside concrete? (a) rubber (b) plastic (c) glass (d) steel
  35. 35.🔍 Which is the odd one out? (a) plastic (b) brass (c) rubber (d) clay pottery
  36. 36.True or false: a hair band needs a heat insulator. (a) False (b) True
  37. 37.🧱 Which property matters most for a cooking pot handle? (a) electrical conductor (b) transparent (c) waterproof (d) heat insulator
  38. 38.🧱 Which property matters most for a plug pin? (a) flexible (b) electrical conductor (c) waterproof (d) heat insulator
  39. 39.🧱 Which property matters most for a car windscreen? (a) waterproof (b) electrical conductor (c) heat insulator (d) transparent
  40. 40.🧱 Is glass an electrical conductor or an insulator? (a) a conductor (b) an insulator

Answer key

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

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