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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 51 · 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 an electrical conductor? (a) a yoga mat (b) a raincoat (c) a magnifier lens (d) a plug pin
  2. 2.🔍 Which is the odd one out? (a) aluminium (b) graphite (c) copper (d) cotton cloth
  3. 3.🔍 Which is the odd one out? (a) glass (b) dry wood (c) clay pottery (d) steel
  4. 4.🧱 Which property matters most for a plug pin? (a) electrical conductor (b) heat insulator (c) flexible (d) transparent
  5. 5.🧱 Which property matters most for a roof sheet? (a) heat insulator (b) flexible (c) transparent (d) waterproof
  6. 6.🧱 Is graphite an electrical conductor or an insulator? (a) a conductor (b) an insulator
  7. 7.🔍 Which is the odd one out? (a) iron (b) clay pottery (c) rubber (d) cotton cloth
  8. 8.Which of these needs a waterproof material? (a) a switch contact (b) a water tank (c) a tea flask lining (d) a hair band
  9. 9.🔍 Which is the odd one out? (a) cotton cloth (b) clay pottery (c) graphite (d) plastic
  10. 10.🔍 Which is the odd one out? (a) plastic (b) copper (c) dry wood (d) clay pottery
  11. 11.🧱 Which material is best for the bars inside concrete? (a) glass (b) plastic (c) rubber (d) steel
  12. 12.True or false: a plug pin needs a waterproof material. (a) False (b) True
  13. 13.🧱 Is iron an electrical conductor or an insulator? (a) a conductor (b) an insulator
  14. 14.🧱 Is cotton cloth an electrical conductor or an insulator? (a) an insulator (b) a conductor
  15. 15.🧱 Is steel an electrical conductor or an insulator? (a) a conductor (b) an insulator
  16. 16.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  17. 17.Which of these needs a transparent material? (a) a boat hull (b) a raincoat (c) the core of a wire (d) a spectacle lens
  18. 18.Which of these needs an electrical conductor? (a) an oven glove (b) a switch contact (c) a car seat belt (d) a yoga mat
  19. 19.True or false: a switch contact needs a heat insulator. (a) True (b) False
  20. 20.🧱 Is dry wood an electrical conductor or an insulator? (a) a conductor (b) an insulator
  21. 21.Which of these needs a waterproof material? (a) a roof sheet (b) a skipping rope (c) a switch contact (d) a yoga mat
  22. 22.🧱 Which property matters most for a spectacle lens? (a) electrical conductor (b) transparent (c) waterproof (d) heat insulator
  23. 23.🧱 Which property matters most for a skipping rope? (a) flexible (b) transparent (c) electrical conductor (d) waterproof
  24. 24.Which of these needs a waterproof material? (a) a car windscreen (b) a tea flask lining (c) an umbrella cover (d) a cooking pot handle
  25. 25.🧱 Which material is best for the core of an electric wire? (a) glass (b) copper (c) wood (d) rubber
  26. 26.Which of these needs a transparent material? (a) a car seat belt (b) a window pane (c) a plug pin (d) a water tank
  27. 27.🧱 Which property matters most for a raincoat? (a) electrical conductor (b) waterproof (c) flexible (d) heat insulator
  28. 28.Which of these needs a heat insulator? (a) a boat hull (b) the core of a wire (c) a cooking pot handle (d) a window pane
  29. 29.🧱 Which material is best for a raincoat? (a) plastic-coated cloth (b) cardboard (c) paper (d) cotton wool
  30. 30.🧱 Which property matters most for a yoga mat? (a) electrical conductor (b) transparent (c) waterproof (d) flexible
  31. 31.🧱 Is brass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  32. 32.🔍 Which is the odd one out? (a) aluminium (b) steel (c) copper (d) clay pottery
  33. 33.True or false: a boat hull needs a heat insulator. (a) True (b) False
  34. 34.🔍 Which is the odd one out? (a) clay pottery (b) dry wood (c) aluminium (d) rubber
  35. 35.🧱 Which property matters most for a water tank? (a) flexible (b) heat insulator (c) waterproof (d) transparent
  36. 36.🔍 Which is the odd one out? (a) aluminium (b) copper (c) plastic (d) steel
  37. 37.True or false: a hair band needs a waterproof material. (a) True (b) False
  38. 38.🔍 Which is the odd one out? (a) rubber (b) aluminium (c) graphite (d) iron
  39. 39.🔍 Which is the odd one out? (a) dry wood (b) brass (c) aluminium (d) copper
  40. 40.True or false: a plug pin needs an electrical conductor. (a) True (b) False

Answer key

  1. a plug pin
  2. cotton cloth
  3. steel
  4. electrical conductor
  5. waterproof
  6. a conductor
  7. iron
  8. a water tank
  9. graphite
  10. copper
  11. steel
  12. False
  13. a conductor
  14. an insulator
  15. a conductor
  16. a conductor
  17. a spectacle lens
  18. a switch contact
  19. False
  20. an insulator
  21. a roof sheet
  22. transparent
  23. flexible
  24. an umbrella cover
  25. copper
  26. a window pane
  27. waterproof
  28. a cooking pot handle
  29. plastic-coated cloth
  30. flexible
  31. a conductor
  32. clay pottery
  33. False
  34. aluminium
  35. waterproof
  36. plastic
  37. False
  38. rubber
  39. dry wood
  40. True

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