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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 240 · 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 property matters most for a spectacle lens? (a) flexible (b) waterproof (c) transparent (d) heat insulator
  2. 2.🔍 Which is the odd one out? (a) clay pottery (b) glass (c) dry wood (d) copper
  3. 3.Which of these needs a flexible material? (a) a boat hull (b) a skipping rope (c) a raincoat (d) a water tank
  4. 4.🧱 Which property matters most for a raincoat? (a) electrical conductor (b) heat insulator (c) flexible (d) waterproof
  5. 5.Which of these needs an electrical conductor? (a) a spectacle lens (b) an oven glove (c) a plug pin (d) a skipping rope
  6. 6.🧱 Which material is best for the bars inside concrete? (a) steel (b) plastic (c) rubber (d) glass
  7. 7.🧱 Is aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
  8. 8.🧱 Which property matters most for a car seat belt? (a) heat insulator (b) waterproof (c) flexible (d) transparent
  9. 9.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  10. 10.🧱 Is clay pottery an electrical conductor or an insulator? (a) an insulator (b) a conductor
  11. 11.🧱 Which property matters most for a yoga mat? (a) flexible (b) waterproof (c) electrical conductor (d) heat insulator
  12. 12.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
  13. 13.🧱 Which property matters most for the core of a wire? (a) transparent (b) electrical conductor (c) waterproof (d) heat insulator
  14. 14.🔍 Which is the odd one out? (a) iron (b) plastic (c) graphite (d) aluminium
  15. 15.🧱 Which property matters most for a water tank? (a) flexible (b) heat insulator (c) transparent (d) waterproof
  16. 16.🧱 Is iron an electrical conductor or an insulator? (a) a conductor (b) an insulator
  17. 17.🧱 Which property matters most for a boat hull? (a) electrical conductor (b) waterproof (c) flexible (d) transparent
  18. 18.🧱 Which property matters most for a roof sheet? (a) electrical conductor (b) waterproof (c) transparent (d) heat insulator
  19. 19.True or false: a magnifier lens needs a waterproof material. (a) False (b) True
  20. 20.Which of these needs a waterproof material? (a) a hair band (b) a boat hull (c) a tea flask lining (d) a switch contact
  21. 21.🧱 Which material is best for a raincoat? (a) plastic-coated cloth (b) cotton wool (c) paper (d) cardboard
  22. 22.Which of these needs a flexible material? (a) a switch contact (b) a yoga mat (c) an oven glove (d) a magnifier lens
  23. 23.Which of these needs a transparent material? (a) a yoga mat (b) a window pane (c) a raincoat (d) an oven glove
  24. 24.Which of these needs a transparent material? (a) a raincoat (b) a spectacle lens (c) a cooking pot handle (d) an umbrella cover
  25. 25.True or false: an umbrella cover needs a waterproof material. (a) False (b) True
  26. 26.🔍 Which is the odd one out? (a) brass (b) aluminium (c) rubber (d) copper
  27. 27.🔍 Which is the odd one out? (a) rubber (b) cotton cloth (c) plastic (d) iron
  28. 28.🧱 Which property matters most for a cooking pot handle? (a) waterproof (b) transparent (c) flexible (d) heat insulator
  29. 29.🧱 Which property matters most for a window pane? (a) flexible (b) electrical conductor (c) waterproof (d) transparent
  30. 30.🔍 Which is the odd one out? (a) iron (b) graphite (c) aluminium (d) glass
  31. 31.🧱 Which material is best for a window pane? (a) wood (b) brick (c) glass (d) steel
  32. 32.True or false: a roof sheet needs a flexible material. (a) False (b) True
  33. 33.🧱 Is cotton cloth an electrical conductor or an insulator? (a) an insulator (b) a conductor
  34. 34.Which of these needs a waterproof material? (a) a car seat belt (b) a water tank (c) a skipping rope (d) a magnifier lens
  35. 35.Which of these needs an electrical conductor? (a) a hair band (b) the core of a wire (c) an oven glove (d) a window pane
  36. 36.Which of these needs a waterproof material? (a) a magnifier lens (b) a car seat belt (c) a hair band (d) a roof sheet
  37. 37.True or false: a window pane needs a transparent material. (a) False (b) True
  38. 38.🔍 Which is the odd one out? (a) dry wood (b) rubber (c) cotton cloth (d) graphite
  39. 39.Which of these needs a transparent material? (a) a plug pin (b) a switch contact (c) a tea flask lining (d) a car windscreen
  40. 40.True or false: a cooking pot handle needs a flexible material. (a) True (b) False

Answer key

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

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