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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 83 · 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 a raincoat? (a) paper (b) cardboard (c) plastic-coated cloth (d) cotton wool
  2. 2.🧱 Which property matters most for an umbrella cover? (a) heat insulator (b) waterproof (c) transparent (d) flexible
  3. 3.Which of these needs a transparent material? (a) a window pane (b) a cooking pot handle (c) a car seat belt (d) a tea flask lining
  4. 4.True or false: a car windscreen needs an electrical conductor. (a) False (b) True
  5. 5.Which of these needs a transparent material? (a) a water tank (b) a plug pin (c) a magnifier lens (d) an oven glove
  6. 6.🧱 Which property matters most for a boat hull? (a) flexible (b) electrical conductor (c) heat insulator (d) waterproof
  7. 7.🧱 Is cotton cloth an electrical conductor or an insulator? (a) an insulator (b) a conductor
  8. 8.🔍 Which is the odd one out? (a) plastic (b) aluminium (c) dry wood (d) clay pottery
  9. 9.🧱 Which material is best for the bars inside concrete? (a) plastic (b) steel (c) rubber (d) glass
  10. 10.Which of these needs an electrical conductor? (a) a water tank (b) a tea flask lining (c) a plug pin (d) a roof sheet
  11. 11.🧱 Which property matters most for a switch contact? (a) transparent (b) waterproof (c) electrical conductor (d) flexible
  12. 12.Which of these needs an electrical conductor? (a) a boat hull (b) the core of a wire (c) a spectacle lens (d) a car windscreen
  13. 13.Which of these needs a waterproof material? (a) a car windscreen (b) a switch contact (c) a cooking pot handle (d) a water tank
  14. 14.🧱 Is dry wood an electrical conductor or an insulator? (a) a conductor (b) an insulator
  15. 15.True or false: a car windscreen needs a flexible material. (a) False (b) True
  16. 16.🔍 Which is the odd one out? (a) iron (b) cotton cloth (c) copper (d) graphite
  17. 17.🔍 Which is the odd one out? (a) aluminium (b) iron (c) brass (d) glass
  18. 18.Which of these needs a transparent material? (a) a car windscreen (b) a switch contact (c) a skipping rope (d) the core of a wire
  19. 19.Which of these needs a waterproof material? (a) an oven glove (b) a roof sheet (c) a skipping rope (d) a tea flask lining
  20. 20.🔍 Which is the odd one out? (a) brass (b) copper (c) dry wood (d) graphite
  21. 21.True or false: a hair band needs a heat insulator. (a) False (b) True
  22. 22.🧱 Which material is best for a cooking pot handle? (a) wood or plastic (b) iron (c) copper (d) aluminium
  23. 23.🔍 Which is the odd one out? (a) iron (b) dry wood (c) plastic (d) rubber
  24. 24.🧱 Is copper an electrical conductor or an insulator? (a) a conductor (b) an insulator
  25. 25.🧱 Which material is best for the core of an electric wire? (a) copper (b) glass (c) rubber (d) wood
  26. 26.🧱 Which material is best for a window pane? (a) brick (b) wood (c) glass (d) steel
  27. 27.Which of these needs a waterproof material? (a) a boat hull (b) a car seat belt (c) a tea flask lining (d) a window pane
  28. 28.🧱 Is brass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  29. 29.True or false: the core of a wire needs a waterproof material. (a) True (b) False
  30. 30.True or false: a tea flask lining needs a heat insulator. (a) False (b) True
  31. 31.🧱 Is graphite an electrical conductor or an insulator? (a) a conductor (b) an insulator
  32. 32.True or false: a yoga mat needs a flexible material. (a) False (b) True
  33. 33.Which of these needs a flexible material? (a) a window pane (b) a skipping rope (c) a cooking pot handle (d) a raincoat
  34. 34.True or false: a switch contact needs an electrical conductor. (a) True (b) False
  35. 35.True or false: a raincoat needs a flexible material. (a) False (b) True
  36. 36.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  37. 37.True or false: a magnifier lens needs an electrical conductor. (a) False (b) True
  38. 38.Which of these needs a waterproof material? (a) a skipping rope (b) a spectacle lens (c) a raincoat (d) a car windscreen
  39. 39.🧱 Which property matters most for a window pane? (a) electrical conductor (b) waterproof (c) transparent (d) flexible
  40. 40.Which of these needs a heat insulator? (a) a roof sheet (b) a raincoat (c) an oven glove (d) a switch contact

Answer key

  1. plastic-coated cloth
  2. waterproof
  3. a window pane
  4. False
  5. a magnifier lens
  6. waterproof
  7. an insulator
  8. aluminium
  9. steel
  10. a plug pin
  11. electrical conductor
  12. the core of a wire
  13. a water tank
  14. an insulator
  15. False
  16. cotton cloth
  17. glass
  18. a car windscreen
  19. a roof sheet
  20. dry wood
  21. False
  22. wood or plastic
  23. iron
  24. a conductor
  25. copper
  26. glass
  27. a boat hull
  28. a conductor
  29. False
  30. True
  31. a conductor
  32. True
  33. a skipping rope
  34. True
  35. False
  36. a conductor
  37. False
  38. a raincoat
  39. transparent
  40. an oven glove

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