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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 704 · 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 window pane? (a) glass (b) wood (c) steel (d) brick
  2. 2.True or false: a raincoat needs a heat insulator. (a) True (b) False
  3. 3.🧱 Is rubber an electrical conductor or an insulator? (a) an insulator (b) a conductor
  4. 4.🔍 Which is the odd one out? (a) aluminium (b) copper (c) rubber (d) brass
  5. 5.True or false: a boat hull needs a waterproof material. (a) False (b) True
  6. 6.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  7. 7.🧱 Is aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
  8. 8.Which of these needs a flexible material? (a) a plug pin (b) a car windscreen (c) a yoga mat (d) the core of a wire
  9. 9.Which of these needs a flexible material? (a) a car windscreen (b) a switch contact (c) a car seat belt (d) an umbrella cover
  10. 10.🔍 Which is the odd one out? (a) copper (b) aluminium (c) clay pottery (d) brass
  11. 11.True or false: a boat hull needs a flexible material. (a) False (b) True
  12. 12.🧱 Which property matters most for a hair band? (a) heat insulator (b) waterproof (c) flexible (d) transparent
  13. 13.🧱 Is brass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  14. 14.🔍 Which is the odd one out? (a) steel (b) dry wood (c) cotton cloth (d) plastic
  15. 15.True or false: a water tank needs a flexible material. (a) True (b) False
  16. 16.🧱 Which material is best for a raincoat? (a) paper (b) plastic-coated cloth (c) cardboard (d) cotton wool
  17. 17.🧱 Which property matters most for a car seat belt? (a) waterproof (b) electrical conductor (c) heat insulator (d) flexible
  18. 18.True or false: a switch contact needs an electrical conductor. (a) False (b) True
  19. 19.🧱 Which material is best for the core of an electric wire? (a) rubber (b) copper (c) glass (d) wood
  20. 20.🔍 Which is the odd one out? (a) clay pottery (b) aluminium (c) dry wood (d) cotton cloth
  21. 21.🧱 Which property matters most for a skipping rope? (a) electrical conductor (b) waterproof (c) flexible (d) transparent
  22. 22.🧱 Which property matters most for a tea flask lining? (a) waterproof (b) electrical conductor (c) heat insulator (d) transparent
  23. 23.🧱 Which material is best for the bars inside concrete? (a) glass (b) steel (c) rubber (d) plastic
  24. 24.Which of these needs an electrical conductor? (a) an umbrella cover (b) a plug pin (c) a skipping rope (d) an oven glove
  25. 25.🧱 Which property matters most for an umbrella cover? (a) electrical conductor (b) heat insulator (c) transparent (d) waterproof
  26. 26.True or false: a roof sheet needs a waterproof material. (a) True (b) False
  27. 27.🧱 Is glass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  28. 28.True or false: an umbrella cover needs a heat insulator. (a) True (b) False
  29. 29.🔍 Which is the odd one out? (a) brass (b) aluminium (c) plastic (d) graphite
  30. 30.🔍 Which is the odd one out? (a) iron (b) copper (c) cotton cloth (d) steel
  31. 31.🧱 Which property matters most for a spectacle lens? (a) heat insulator (b) flexible (c) transparent (d) electrical conductor
  32. 32.🔍 Which is the odd one out? (a) rubber (b) iron (c) cotton cloth (d) plastic
  33. 33.True or false: a raincoat needs a flexible material. (a) True (b) False
  34. 34.True or false: a tea flask lining needs a waterproof material. (a) True (b) False
  35. 35.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
  36. 36.True or false: a cooking pot handle needs a heat insulator. (a) False (b) True
  37. 37.🧱 Which property matters most for a plug pin? (a) electrical conductor (b) heat insulator (c) transparent (d) waterproof
  38. 38.True or false: a tea flask lining needs a heat insulator. (a) False (b) True
  39. 39.True or false: a yoga mat needs a flexible material. (a) True (b) False
  40. 40.🧱 Is graphite an electrical conductor or an insulator? (a) a conductor (b) an insulator

Answer key

  1. glass
  2. False
  3. an insulator
  4. rubber
  5. True
  6. a conductor
  7. a conductor
  8. a yoga mat
  9. a car seat belt
  10. clay pottery
  11. False
  12. flexible
  13. a conductor
  14. steel
  15. False
  16. plastic-coated cloth
  17. flexible
  18. True
  19. copper
  20. aluminium
  21. flexible
  22. heat insulator
  23. steel
  24. a plug pin
  25. waterproof
  26. True
  27. an insulator
  28. False
  29. plastic
  30. cotton cloth
  31. transparent
  32. iron
  33. False
  34. False
  35. a conductor
  36. True
  37. electrical conductor
  38. True
  39. True
  40. a conductor

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