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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 207 · 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 heat insulator? (a) a car windscreen (b) an oven glove (c) an umbrella cover (d) a yoga mat
  2. 2.True or false: a tea flask lining needs a heat insulator. (a) False (b) True
  3. 3.🧱 Which material is best for a raincoat? (a) cardboard (b) paper (c) plastic-coated cloth (d) cotton wool
  4. 4.Which of these needs a flexible material? (a) an oven glove (b) an umbrella cover (c) a cooking pot handle (d) a hair band
  5. 5.🧱 Which material is best for the core of an electric wire? (a) rubber (b) glass (c) wood (d) copper
  6. 6.🧱 Which property matters most for an umbrella cover? (a) heat insulator (b) electrical conductor (c) transparent (d) waterproof
  7. 7.🧱 Which property matters most for an oven glove? (a) flexible (b) waterproof (c) electrical conductor (d) heat insulator
  8. 8.🧱 Which material is best for the bars inside concrete? (a) steel (b) plastic (c) rubber (d) glass
  9. 9.🧱 Which property matters most for a car seat belt? (a) waterproof (b) transparent (c) flexible (d) electrical conductor
  10. 10.🔍 Which is the odd one out? (a) iron (b) dry wood (c) brass (d) aluminium
  11. 11.🧱 Which material is best for a cooking pot handle? (a) iron (b) copper (c) aluminium (d) wood or plastic
  12. 12.True or false: a roof sheet needs a transparent material. (a) True (b) False
  13. 13.🧱 Which property matters most for a yoga mat? (a) flexible (b) electrical conductor (c) waterproof (d) transparent
  14. 14.🧱 Which material is best for a window pane? (a) brick (b) wood (c) glass (d) steel
  15. 15.🧱 Which property matters most for a cooking pot handle? (a) waterproof (b) heat insulator (c) electrical conductor (d) flexible
  16. 16.🧱 Is dry wood an electrical conductor or an insulator? (a) a conductor (b) an insulator
  17. 17.True or false: a spectacle lens needs a transparent material. (a) True (b) False
  18. 18.🔍 Which is the odd one out? (a) aluminium (b) graphite (c) steel (d) cotton cloth
  19. 19.True or false: a car windscreen needs a waterproof material. (a) True (b) False
  20. 20.Which of these needs a flexible material? (a) a car seat belt (b) a car windscreen (c) a plug pin (d) a window pane
  21. 21.Which of these needs a waterproof material? (a) a cooking pot handle (b) a plug pin (c) a car windscreen (d) an umbrella cover
  22. 22.True or false: a car seat belt needs a heat insulator. (a) True (b) False
  23. 23.Which of these needs a flexible material? (a) a plug pin (b) a boat hull (c) a roof sheet (d) a yoga mat
  24. 24.True or false: a car seat belt needs a flexible material. (a) False (b) True
  25. 25.🔍 Which is the odd one out? (a) copper (b) iron (c) glass (d) aluminium
  26. 26.Which of these needs a transparent material? (a) a water tank (b) an umbrella cover (c) a spectacle lens (d) a raincoat
  27. 27.🧱 Which property matters most for a car windscreen? (a) flexible (b) heat insulator (c) electrical conductor (d) transparent
  28. 28.🧱 Which property matters most for a magnifier lens? (a) flexible (b) heat insulator (c) transparent (d) waterproof
  29. 29.🔍 Which is the odd one out? (a) steel (b) copper (c) iron (d) plastic
  30. 30.🧱 Is cotton cloth an electrical conductor or an insulator? (a) an insulator (b) a conductor
  31. 31.Which of these needs a waterproof material? (a) a car seat belt (b) a cooking pot handle (c) a roof sheet (d) a tea flask lining
  32. 32.Which of these needs an electrical conductor? (a) a boat hull (b) a water tank (c) the core of a wire (d) a cooking pot handle
  33. 33.🧱 Which property matters most for a switch contact? (a) waterproof (b) heat insulator (c) transparent (d) electrical conductor
  34. 34.True or false: a switch contact needs a transparent material. (a) True (b) False
  35. 35.🧱 Is brass 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 of these needs a heat insulator? (a) a raincoat (b) a switch contact (c) a tea flask lining (d) an umbrella cover
  38. 38.True or false: the core of a wire needs an electrical conductor. (a) True (b) False
  39. 39.Which of these needs a transparent material? (a) an oven glove (b) a roof sheet (c) a boat hull (d) a magnifier lens
  40. 40.🔍 Which is the odd one out? (a) copper (b) rubber (c) dry wood (d) plastic

Answer key

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

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