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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 87 · 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.True or false: a roof sheet needs a waterproof material. (a) False (b) True
  2. 2.🧱 Which property matters most for a switch contact? (a) transparent (b) flexible (c) waterproof (d) electrical conductor
  3. 3.🧱 Which property matters most for a window pane? (a) transparent (b) waterproof (c) heat insulator (d) flexible
  4. 4.🔍 Which is the odd one out? (a) cotton cloth (b) brass (c) rubber (d) clay pottery
  5. 5.Which of these needs a heat insulator? (a) a switch contact (b) a boat hull (c) a cooking pot handle (d) a car seat belt
  6. 6.True or false: a tea flask lining needs an electrical conductor. (a) True (b) False
  7. 7.🧱 Is dry wood an electrical conductor or an insulator? (a) a conductor (b) an insulator
  8. 8.🧱 Which material is best for a raincoat? (a) paper (b) cotton wool (c) plastic-coated cloth (d) cardboard
  9. 9.Which of these needs a transparent material? (a) a car seat belt (b) an umbrella cover (c) a window pane (d) a roof sheet
  10. 10.🧱 Which property matters most for a boat hull? (a) electrical conductor (b) heat insulator (c) waterproof (d) transparent
  11. 11.🔍 Which is the odd one out? (a) aluminium (b) cotton cloth (c) brass (d) steel
  12. 12.Which of these needs a transparent material? (a) a raincoat (b) a boat hull (c) a spectacle lens (d) a switch contact
  13. 13.🧱 Is cotton cloth an electrical conductor or an insulator? (a) a conductor (b) an insulator
  14. 14.Which of these needs a waterproof material? (a) a skipping rope (b) a magnifier lens (c) a tea flask lining (d) an umbrella cover
  15. 15.🧱 Which material is best for a cooking pot handle? (a) wood or plastic (b) aluminium (c) iron (d) copper
  16. 16.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  17. 17.Which of these needs a heat insulator? (a) an oven glove (b) a roof sheet (c) a water tank (d) a plug pin
  18. 18.Which of these needs an electrical conductor? (a) a hair band (b) an umbrella cover (c) a yoga mat (d) a switch contact
  19. 19.🔍 Which is the odd one out? (a) brass (b) copper (c) plastic (d) steel
  20. 20.True or false: a car seat belt needs a flexible material. (a) True (b) False
  21. 21.Which of these needs a transparent material? (a) a switch contact (b) a tea flask lining (c) a car windscreen (d) a hair band
  22. 22.Which of these needs an electrical conductor? (a) a plug pin (b) a hair band (c) a yoga mat (d) a car windscreen
  23. 23.Which of these needs a flexible material? (a) a switch contact (b) a skipping rope (c) an oven glove (d) an umbrella cover
  24. 24.Which of these needs a waterproof material? (a) a roof sheet (b) a plug pin (c) an oven glove (d) a cooking pot handle
  25. 25.True or false: an umbrella cover needs a flexible material. (a) False (b) True
  26. 26.🧱 Is iron an electrical conductor or an insulator? (a) a conductor (b) an insulator
  27. 27.True or false: an oven glove needs a flexible material. (a) True (b) False
  28. 28.True or false: a window pane needs a waterproof material. (a) True (b) False
  29. 29.Which of these needs a flexible material? (a) a car seat belt (b) a tea flask lining (c) a car windscreen (d) a spectacle lens
  30. 30.🧱 Which property matters most for a hair band? (a) flexible (b) heat insulator (c) electrical conductor (d) waterproof
  31. 31.True or false: a yoga mat needs a transparent material. (a) False (b) True
  32. 32.🔍 Which is the odd one out? (a) clay pottery (b) rubber (c) cotton cloth (d) steel
  33. 33.🧱 Which property matters most for a water tank? (a) transparent (b) flexible (c) waterproof (d) heat insulator
  34. 34.🧱 Which property matters most for a spectacle lens? (a) transparent (b) electrical conductor (c) waterproof (d) heat insulator
  35. 35.True or false: an oven glove needs a heat insulator. (a) True (b) False
  36. 36.🧱 Which material is best for the bars inside concrete? (a) rubber (b) steel (c) plastic (d) glass
  37. 37.🧱 Which property matters most for a roof sheet? (a) electrical conductor (b) waterproof (c) transparent (d) flexible
  38. 38.Which of these needs a waterproof material? (a) a car windscreen (b) an oven glove (c) a yoga mat (d) a water tank
  39. 39.🔍 Which is the odd one out? (a) copper (b) aluminium (c) graphite (d) rubber
  40. 40.🔍 Which is the odd one out? (a) dry wood (b) aluminium (c) copper (d) brass

Answer key

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

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