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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 949 · 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.True or false: a yoga mat needs a flexible material. (a) False (b) True
  2. 2.True or false: a plug pin needs a transparent material. (a) True (b) False
  3. 3.🧱 Is steel an electrical conductor or an insulator? (a) a conductor (b) an insulator
  4. 4.🧱 Which material is best for a raincoat? (a) cardboard (b) plastic-coated cloth (c) paper (d) cotton wool
  5. 5.🔍 Which is the odd one out? (a) steel (b) iron (c) cotton cloth (d) aluminium
  6. 6.🧱 Which property matters most for a yoga mat? (a) transparent (b) electrical conductor (c) flexible (d) heat insulator
  7. 7.Which of these needs an electrical conductor? (a) a tea flask lining (b) a skipping rope (c) a plug pin (d) a roof sheet
  8. 8.🧱 Which property matters most for a tea flask lining? (a) flexible (b) heat insulator (c) transparent (d) waterproof
  9. 9.True or false: a car windscreen needs a heat insulator. (a) True (b) False
  10. 10.True or false: a window pane needs a transparent material. (a) True (b) False
  11. 11.🧱 Which property matters most for a raincoat? (a) transparent (b) waterproof (c) heat insulator (d) flexible
  12. 12.🧱 Is iron an electrical conductor or an insulator? (a) a conductor (b) an insulator
  13. 13.Which of these needs a waterproof material? (a) a magnifier lens (b) a car seat belt (c) a raincoat (d) a cooking pot handle
  14. 14.Which of these needs a transparent material? (a) a roof sheet (b) a plug pin (c) a tea flask lining (d) a spectacle lens
  15. 15.Which of these needs an electrical conductor? (a) a switch contact (b) a spectacle lens (c) a cooking pot handle (d) a hair band
  16. 16.True or false: a boat hull needs a waterproof material. (a) True (b) False
  17. 17.Which of these needs a transparent material? (a) a window pane (b) a hair band (c) a skipping rope (d) a yoga mat
  18. 18.🧱 Which property matters most for a spectacle lens? (a) electrical conductor (b) transparent (c) heat insulator (d) waterproof
  19. 19.🧱 Which property matters most for a car windscreen? (a) electrical conductor (b) transparent (c) flexible (d) heat insulator
  20. 20.🔍 Which is the odd one out? (a) clay pottery (b) copper (c) plastic (d) cotton cloth
  21. 21.Which of these needs a flexible material? (a) a hair band (b) a spectacle lens (c) a water tank (d) a cooking pot handle
  22. 22.🧱 Which material is best for a cooking pot handle? (a) copper (b) iron (c) aluminium (d) wood or plastic
  23. 23.🔍 Which is the odd one out? (a) dry wood (b) brass (c) cotton cloth (d) glass
  24. 24.True or false: an oven glove needs a heat insulator. (a) True (b) False
  25. 25.🔍 Which is the odd one out? (a) steel (b) rubber (c) clay pottery (d) dry wood
  26. 26.🔍 Which is the odd one out? (a) copper (b) steel (c) plastic (d) iron
  27. 27.🧱 Which property matters most for a car seat belt? (a) heat insulator (b) waterproof (c) electrical conductor (d) flexible
  28. 28.🧱 Which property matters most for a magnifier lens? (a) flexible (b) heat insulator (c) electrical conductor (d) transparent
  29. 29.True or false: a yoga mat needs a waterproof material. (a) True (b) False
  30. 30.True or false: a car seat belt needs a flexible material. (a) False (b) True
  31. 31.True or false: the core of a wire needs a waterproof material. (a) False (b) True
  32. 32.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  33. 33.🔍 Which is the odd one out? (a) graphite (b) glass (c) aluminium (d) steel
  34. 34.True or false: a plug pin needs an electrical conductor. (a) False (b) True
  35. 35.🧱 Which material is best for the bars inside concrete? (a) glass (b) plastic (c) rubber (d) steel
  36. 36.True or false: a roof sheet needs a waterproof material. (a) False (b) True
  37. 37.🧱 Which material is best for a window pane? (a) glass (b) wood (c) brick (d) steel
  38. 38.True or false: a car seat belt needs a heat insulator. (a) False (b) True
  39. 39.True or false: a raincoat needs a waterproof material. (a) False (b) True
  40. 40.🧱 Which property matters most for a plug pin? (a) electrical conductor (b) heat insulator (c) flexible (d) transparent

Answer key

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

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