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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 508 · 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) cotton wool (c) plastic-coated cloth (d) cardboard
  2. 2.Which of these needs a waterproof material? (a) a cooking pot handle (b) a raincoat (c) a car windscreen (d) a hair band
  3. 3.🧱 Is dry wood an electrical conductor or an insulator? (a) a conductor (b) an insulator
  4. 4.🧱 Which property matters most for a spectacle lens? (a) waterproof (b) flexible (c) heat insulator (d) transparent
  5. 5.True or false: a magnifier lens needs an electrical conductor. (a) True (b) False
  6. 6.Which of these needs a heat insulator? (a) the core of a wire (b) a boat hull (c) an oven glove (d) a roof sheet
  7. 7.🧱 Which material is best for the core of an electric wire? (a) glass (b) copper (c) wood (d) rubber
  8. 8.🧱 Which property matters most for a tea flask lining? (a) electrical conductor (b) transparent (c) heat insulator (d) flexible
  9. 9.🔍 Which is the odd one out? (a) cotton cloth (b) rubber (c) aluminium (d) glass
  10. 10.🔍 Which is the odd one out? (a) plastic (b) graphite (c) iron (d) copper
  11. 11.Which of these needs an electrical conductor? (a) a window pane (b) a skipping rope (c) an umbrella cover (d) a switch contact
  12. 12.🧱 Which property matters most for a window pane? (a) transparent (b) waterproof (c) heat insulator (d) flexible
  13. 13.🧱 Which property matters most for a skipping rope? (a) electrical conductor (b) waterproof (c) flexible (d) transparent
  14. 14.🧱 Which property matters most for a yoga mat? (a) transparent (b) heat insulator (c) flexible (d) waterproof
  15. 15.🧱 Which material is best for a cooking pot handle? (a) iron (b) aluminium (c) copper (d) wood or plastic
  16. 16.🔍 Which is the odd one out? (a) graphite (b) copper (c) brass (d) glass
  17. 17.🧱 Is rubber an electrical conductor or an insulator? (a) an insulator (b) a conductor
  18. 18.🧱 Which property matters most for a car windscreen? (a) heat insulator (b) flexible (c) transparent (d) waterproof
  19. 19.Which of these needs a transparent material? (a) a car seat belt (b) a skipping rope (c) a plug pin (d) a window pane
  20. 20.🧱 Which property matters most for the core of a wire? (a) flexible (b) transparent (c) electrical conductor (d) waterproof
  21. 21.True or false: an umbrella cover needs an electrical conductor. (a) False (b) True
  22. 22.🧱 Which material is best for a window pane? (a) glass (b) steel (c) brick (d) wood
  23. 23.🧱 Which property matters most for a switch contact? (a) flexible (b) electrical conductor (c) transparent (d) waterproof
  24. 24.🧱 Is brass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  25. 25.True or false: a plug pin needs an electrical conductor. (a) False (b) True
  26. 26.Which of these needs an electrical conductor? (a) a raincoat (b) a plug pin (c) a water tank (d) a car windscreen
  27. 27.🧱 Which property matters most for a roof sheet? (a) flexible (b) transparent (c) waterproof (d) electrical conductor
  28. 28.Which of these needs a heat insulator? (a) a switch contact (b) a plug pin (c) a water tank (d) a cooking pot handle
  29. 29.True or false: a magnifier lens needs a flexible material. (a) True (b) False
  30. 30.🧱 Which property matters most for a water tank? (a) heat insulator (b) electrical conductor (c) transparent (d) waterproof
  31. 31.🧱 Is clay pottery an electrical conductor or an insulator? (a) a conductor (b) an insulator
  32. 32.True or false: a boat hull needs a transparent material. (a) True (b) False
  33. 33.Which of these needs a flexible material? (a) a plug pin (b) a car seat belt (c) a magnifier lens (d) an umbrella cover
  34. 34.🧱 Which property matters most for a car seat belt? (a) heat insulator (b) flexible (c) transparent (d) waterproof
  35. 35.True or false: a car seat belt needs an electrical conductor. (a) True (b) False
  36. 36.True or false: a car seat belt needs a flexible material. (a) False (b) True
  37. 37.🧱 Which property matters most for a plug pin? (a) flexible (b) transparent (c) electrical conductor (d) heat insulator
  38. 38.🧱 Which material is best for the bars inside concrete? (a) plastic (b) glass (c) steel (d) rubber
  39. 39.True or false: an oven glove needs a heat insulator. (a) False (b) True
  40. 40.True or false: a raincoat needs a flexible material. (a) True (b) False

Answer key

  1. plastic-coated cloth
  2. a raincoat
  3. an insulator
  4. transparent
  5. False
  6. an oven glove
  7. copper
  8. heat insulator
  9. aluminium
  10. plastic
  11. a switch contact
  12. transparent
  13. flexible
  14. flexible
  15. wood or plastic
  16. glass
  17. an insulator
  18. transparent
  19. a window pane
  20. electrical conductor
  21. False
  22. glass
  23. electrical conductor
  24. a conductor
  25. True
  26. a plug pin
  27. waterproof
  28. a cooking pot handle
  29. False
  30. waterproof
  31. an insulator
  32. False
  33. a car seat belt
  34. flexible
  35. False
  36. True
  37. electrical conductor
  38. steel
  39. True
  40. False

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