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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 924 · 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.🧱 Is brass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  2. 2.🧱 Which property matters most for a hair band? (a) flexible (b) waterproof (c) heat insulator (d) electrical conductor
  3. 3.🔍 Which is the odd one out? (a) rubber (b) copper (c) brass (d) graphite
  4. 4.Which of these needs a transparent material? (a) a water tank (b) a skipping rope (c) a boat hull (d) a magnifier lens
  5. 5.Which of these needs a flexible material? (a) a magnifier lens (b) a yoga mat (c) a tea flask lining (d) a car windscreen
  6. 6.🔍 Which is the odd one out? (a) steel (b) aluminium (c) copper (d) dry wood
  7. 7.🧱 Which material is best for a raincoat? (a) cotton wool (b) cardboard (c) paper (d) plastic-coated cloth
  8. 8.🧱 Which property matters most for a switch contact? (a) electrical conductor (b) waterproof (c) transparent (d) flexible
  9. 9.🧱 Which material is best for the core of an electric wire? (a) rubber (b) wood (c) glass (d) copper
  10. 10.True or false: an oven glove needs an electrical conductor. (a) True (b) False
  11. 11.Which of these needs a waterproof material? (a) a roof sheet (b) the core of a wire (c) a hair band (d) a window pane
  12. 12.True or false: a spectacle lens needs a transparent material. (a) False (b) True
  13. 13.True or false: a boat hull needs a waterproof material. (a) True (b) False
  14. 14.🔍 Which is the odd one out? (a) graphite (b) copper (c) brass (d) plastic
  15. 15.Which of these needs a transparent material? (a) a roof sheet (b) a spectacle lens (c) the core of a wire (d) a hair band
  16. 16.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  17. 17.🔍 Which is the odd one out? (a) graphite (b) brass (c) iron (d) glass
  18. 18.🧱 Which material is best for a window pane? (a) wood (b) glass (c) steel (d) brick
  19. 19.🧱 Which property matters most for a raincoat? (a) transparent (b) waterproof (c) electrical conductor (d) heat insulator
  20. 20.True or false: a water tank needs a waterproof material. (a) False (b) True
  21. 21.🔍 Which is the odd one out? (a) plastic (b) dry wood (c) clay pottery (d) copper
  22. 22.🧱 Which property matters most for a cooking pot handle? (a) heat insulator (b) electrical conductor (c) transparent (d) waterproof
  23. 23.🔍 Which is the odd one out? (a) graphite (b) aluminium (c) cotton cloth (d) copper
  24. 24.True or false: a plug pin needs a waterproof material. (a) True (b) False
  25. 25.🧱 Which material is best for a cooking pot handle? (a) wood or plastic (b) iron (c) copper (d) aluminium
  26. 26.Which of these needs a waterproof material? (a) a car seat belt (b) a car windscreen (c) a raincoat (d) an oven glove
  27. 27.Which of these needs a flexible material? (a) a spectacle lens (b) a hair band (c) a plug pin (d) an umbrella cover
  28. 28.Which of these needs a heat insulator? (a) an umbrella cover (b) a cooking pot handle (c) a switch contact (d) a roof sheet
  29. 29.True or false: a roof sheet needs an electrical conductor. (a) True (b) False
  30. 30.🧱 Is cotton cloth an electrical conductor or an insulator? (a) a conductor (b) an insulator
  31. 31.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
  32. 32.Which of these needs a waterproof material? (a) the core of a wire (b) a car windscreen (c) a car seat belt (d) a boat hull
  33. 33.True or false: a plug pin needs a flexible material. (a) False (b) True
  34. 34.True or false: an umbrella cover needs a waterproof material. (a) True (b) False
  35. 35.🧱 Which property matters most for a car windscreen? (a) flexible (b) transparent (c) electrical conductor (d) waterproof
  36. 36.True or false: a yoga mat needs a flexible material. (a) True (b) False
  37. 37.True or false: a raincoat needs a transparent material. (a) False (b) True
  38. 38.🧱 Which material is best for the bars inside concrete? (a) rubber (b) steel (c) plastic (d) glass
  39. 39.Which of these needs a waterproof material? (a) a skipping rope (b) a water tank (c) a yoga mat (d) a hair band
  40. 40.Which of these needs a transparent material? (a) a switch contact (b) an oven glove (c) a boat hull (d) a car windscreen

Answer key

  1. a conductor
  2. flexible
  3. rubber
  4. a magnifier lens
  5. a yoga mat
  6. dry wood
  7. plastic-coated cloth
  8. electrical conductor
  9. copper
  10. False
  11. a roof sheet
  12. True
  13. True
  14. plastic
  15. a spectacle lens
  16. a conductor
  17. glass
  18. glass
  19. waterproof
  20. True
  21. copper
  22. heat insulator
  23. cotton cloth
  24. False
  25. wood or plastic
  26. a raincoat
  27. a hair band
  28. a cooking pot handle
  29. False
  30. an insulator
  31. a conductor
  32. a boat hull
  33. False
  34. True
  35. transparent
  36. True
  37. False
  38. steel
  39. a water tank
  40. a car windscreen

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