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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 673 · 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 of these needs a waterproof material? (a) a skipping rope (b) a raincoat (c) a plug pin (d) a spectacle lens
  2. 2.True or false: a raincoat needs a heat insulator. (a) False (b) True
  3. 3.🧱 Which property matters most for a plug pin? (a) waterproof (b) heat insulator (c) electrical conductor (d) transparent
  4. 4.Which of these needs a flexible material? (a) a skipping rope (b) a boat hull (c) a water tank (d) a spectacle lens
  5. 5.🧱 Which material is best for a cooking pot handle? (a) aluminium (b) copper (c) wood or plastic (d) iron
  6. 6.Which of these needs a flexible material? (a) a hair band (b) a cooking pot handle (c) the core of a wire (d) a magnifier lens
  7. 7.🧱 Which material is best for a raincoat? (a) paper (b) plastic-coated cloth (c) cotton wool (d) cardboard
  8. 8.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  9. 9.🔍 Which is the odd one out? (a) copper (b) plastic (c) iron (d) graphite
  10. 10.🧱 Is brass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  11. 11.🧱 Which property matters most for a car windscreen? (a) heat insulator (b) waterproof (c) flexible (d) transparent
  12. 12.True or false: an umbrella cover needs a flexible material. (a) False (b) True
  13. 13.Which of these needs an electrical conductor? (a) a car windscreen (b) an umbrella cover (c) a hair band (d) a switch contact
  14. 14.Which of these needs a transparent material? (a) an umbrella cover (b) a skipping rope (c) a cooking pot handle (d) a magnifier lens
  15. 15.Which of these needs a waterproof material? (a) a yoga mat (b) a tea flask lining (c) the core of a wire (d) a boat hull
  16. 16.True or false: an umbrella cover needs a waterproof material. (a) True (b) False
  17. 17.Which of these needs an electrical conductor? (a) a car seat belt (b) a skipping rope (c) a roof sheet (d) a plug pin
  18. 18.Which of these needs a heat insulator? (a) a car seat belt (b) a car windscreen (c) a plug pin (d) a cooking pot handle
  19. 19.🧱 Is glass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  20. 20.🧱 Which material is best for the core of an electric wire? (a) rubber (b) wood (c) copper (d) glass
  21. 21.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
  22. 22.🔍 Which is the odd one out? (a) steel (b) rubber (c) dry wood (d) cotton cloth
  23. 23.🔍 Which is the odd one out? (a) brass (b) dry wood (c) graphite (d) steel
  24. 24.True or false: a boat hull needs a heat insulator. (a) False (b) True
  25. 25.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  26. 26.🧱 Which material is best for the bars inside concrete? (a) plastic (b) steel (c) rubber (d) glass
  27. 27.🧱 Which property matters most for a window pane? (a) transparent (b) flexible (c) waterproof (d) electrical conductor
  28. 28.🧱 Which property matters most for a roof sheet? (a) waterproof (b) heat insulator (c) transparent (d) flexible
  29. 29.🔍 Which is the odd one out? (a) rubber (b) clay pottery (c) plastic (d) aluminium
  30. 30.🧱 Which property matters most for a yoga mat? (a) electrical conductor (b) waterproof (c) flexible (d) transparent
  31. 31.🧱 Which material is best for a window pane? (a) steel (b) glass (c) wood (d) brick
  32. 32.True or false: a cooking pot handle needs a heat insulator. (a) True (b) False
  33. 33.🧱 Which property matters most for a water tank? (a) electrical conductor (b) transparent (c) heat insulator (d) waterproof
  34. 34.🧱 Which property matters most for a spectacle lens? (a) flexible (b) electrical conductor (c) heat insulator (d) transparent
  35. 35.🧱 Which property matters most for a switch contact? (a) heat insulator (b) waterproof (c) transparent (d) electrical conductor
  36. 36.🧱 Which property matters most for a raincoat? (a) waterproof (b) heat insulator (c) transparent (d) flexible
  37. 37.True or false: a roof sheet needs a transparent material. (a) False (b) True
  38. 38.🧱 Is plastic an electrical conductor or an insulator? (a) an insulator (b) a conductor
  39. 39.True or false: a car seat belt needs a waterproof material. (a) True (b) False
  40. 40.🧱 Which property matters most for a car seat belt? (a) heat insulator (b) flexible (c) transparent (d) waterproof

Answer key

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

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