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Engineering Worksheet: Materials

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

Answer key

  1. waterproof
  2. flexible
  3. transparent
  4. False
  5. plastic-coated cloth
  6. False
  7. a switch contact
  8. glass
  9. flexible
  10. an insulator
  11. waterproof
  12. wood or plastic
  13. a car seat belt
  14. a hair band
  15. rubber
  16. copper
  17. True
  18. the core of a wire
  19. True
  20. a conductor
  21. electrical conductor
  22. False
  23. False
  24. True
  25. brass
  26. True
  27. a roof sheet
  28. an umbrella cover
  29. waterproof
  30. cotton cloth
  31. a conductor
  32. True
  33. flexible
  34. False
  35. graphite
  36. a conductor
  37. an insulator
  38. transparent
  39. glass
  40. heat insulator

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