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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 760 · 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 the bars inside concrete? (a) plastic (b) glass (c) rubber (d) steel
  2. 2.🧱 Is cotton cloth an electrical conductor or an insulator? (a) a conductor (b) an insulator
  3. 3.🧱 Which material is best for a cooking pot handle? (a) aluminium (b) iron (c) wood or plastic (d) copper
  4. 4.🧱 Which material is best for the core of an electric wire? (a) wood (b) glass (c) rubber (d) copper
  5. 5.🔍 Which is the odd one out? (a) cotton cloth (b) glass (c) graphite (d) rubber
  6. 6.🧱 Which property matters most for a spectacle lens? (a) waterproof (b) flexible (c) electrical conductor (d) transparent
  7. 7.🧱 Which property matters most for a water tank? (a) transparent (b) heat insulator (c) waterproof (d) electrical conductor
  8. 8.Which of these needs a flexible material? (a) a water tank (b) a boat hull (c) a switch contact (d) a yoga mat
  9. 9.🧱 Which material is best for a raincoat? (a) paper (b) cardboard (c) plastic-coated cloth (d) cotton wool
  10. 10.True or false: a skipping rope needs a transparent material. (a) True (b) False
  11. 11.🧱 Is graphite an electrical conductor or an insulator? (a) an insulator (b) a conductor
  12. 12.🧱 Is rubber an electrical conductor or an insulator? (a) an insulator (b) a conductor
  13. 13.🔍 Which is the odd one out? (a) plastic (b) rubber (c) iron (d) glass
  14. 14.Which of these needs a flexible material? (a) the core of a wire (b) a car seat belt (c) a switch contact (d) a spectacle lens
  15. 15.True or false: a tea flask lining needs an electrical conductor. (a) False (b) True
  16. 16.Which of these needs an electrical conductor? (a) a magnifier lens (b) a water tank (c) a car windscreen (d) the core of a wire
  17. 17.Which of these needs a waterproof material? (a) a switch contact (b) the core of a wire (c) a car windscreen (d) an umbrella cover
  18. 18.🧱 Which property matters most for a plug pin? (a) flexible (b) waterproof (c) transparent (d) electrical conductor
  19. 19.🧱 Is iron an electrical conductor or an insulator? (a) a conductor (b) an insulator
  20. 20.True or false: a tea flask lining needs a heat insulator. (a) True (b) False
  21. 21.🔍 Which is the odd one out? (a) aluminium (b) brass (c) steel (d) glass
  22. 22.🧱 Which property matters most for a switch contact? (a) electrical conductor (b) transparent (c) waterproof (d) heat insulator
  23. 23.🔍 Which is the odd one out? (a) copper (b) iron (c) steel (d) clay pottery
  24. 24.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  25. 25.True or false: a car windscreen needs a heat insulator. (a) True (b) False
  26. 26.True or false: a roof sheet needs a waterproof material. (a) True (b) False
  27. 27.Which of these needs a flexible material? (a) a cooking pot handle (b) a magnifier lens (c) a skipping rope (d) a plug pin
  28. 28.🔍 Which is the odd one out? (a) cotton cloth (b) dry wood (c) plastic (d) brass
  29. 29.🧱 Which property matters most for a tea flask lining? (a) waterproof (b) heat insulator (c) flexible (d) transparent
  30. 30.Which of these needs a waterproof material? (a) a tea flask lining (b) an oven glove (c) a car seat belt (d) a roof sheet
  31. 31.🔍 Which is the odd one out? (a) steel (b) graphite (c) plastic (d) copper
  32. 32.🧱 Which property matters most for a hair band? (a) waterproof (b) flexible (c) electrical conductor (d) transparent
  33. 33.🔍 Which is the odd one out? (a) graphite (b) copper (c) dry wood (d) iron
  34. 34.🧱 Which material is best for a window pane? (a) wood (b) brick (c) glass (d) steel
  35. 35.🧱 Which property matters most for a cooking pot handle? (a) heat insulator (b) flexible (c) transparent (d) waterproof
  36. 36.🧱 Which property matters most for a skipping rope? (a) waterproof (b) electrical conductor (c) transparent (d) flexible
  37. 37.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  38. 38.Which of these needs a transparent material? (a) a cooking pot handle (b) a switch contact (c) a car seat belt (d) a magnifier lens
  39. 39.Which of these needs a transparent material? (a) a spectacle lens (b) a boat hull (c) the core of a wire (d) a car seat belt
  40. 40.🔍 Which is the odd one out? (a) copper (b) rubber (c) aluminium (d) iron

Answer key

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

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