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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 539 · 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 the bars inside concrete? (a) steel (b) glass (c) plastic (d) rubber
  2. 2.Which of these needs an electrical conductor? (a) a hair band (b) a roof sheet (c) a water tank (d) the core of a wire
  3. 3.🧱 Is cotton cloth an electrical conductor or an insulator? (a) a conductor (b) an insulator
  4. 4.True or false: a roof sheet needs a waterproof material. (a) True (b) False
  5. 5.🧱 Which property matters most for a magnifier lens? (a) transparent (b) electrical conductor (c) waterproof (d) heat insulator
  6. 6.Which of these needs a flexible material? (a) a window pane (b) a skipping rope (c) a switch contact (d) the core of a wire
  7. 7.🧱 Which property matters most for a switch contact? (a) heat insulator (b) transparent (c) electrical conductor (d) flexible
  8. 8.🧱 Which property matters most for a hair band? (a) electrical conductor (b) flexible (c) heat insulator (d) waterproof
  9. 9.🔍 Which is the odd one out? (a) rubber (b) dry wood (c) graphite (d) glass
  10. 10.Which of these needs a waterproof material? (a) a switch contact (b) an oven glove (c) a cooking pot handle (d) a boat hull
  11. 11.True or false: a water tank needs a waterproof material. (a) True (b) False
  12. 12.Which of these needs a flexible material? (a) a cooking pot handle (b) a magnifier lens (c) a car windscreen (d) a hair band
  13. 13.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  14. 14.🔍 Which is the odd one out? (a) plastic (b) brass (c) dry wood (d) cotton cloth
  15. 15.True or false: a raincoat needs a waterproof material. (a) False (b) True
  16. 16.Which of these needs a transparent material? (a) a plug pin (b) a switch contact (c) a spectacle lens (d) an umbrella cover
  17. 17.🔍 Which is the odd one out? (a) copper (b) clay pottery (c) plastic (d) glass
  18. 18.🧱 Which property matters most for a cooking pot handle? (a) electrical conductor (b) heat insulator (c) waterproof (d) transparent
  19. 19.🧱 Which property matters most for a tea flask lining? (a) flexible (b) transparent (c) waterproof (d) heat insulator
  20. 20.🧱 Which property matters most for the core of a wire? (a) electrical conductor (b) waterproof (c) heat insulator (d) transparent
  21. 21.🧱 Is graphite an electrical conductor or an insulator? (a) an insulator (b) a conductor
  22. 22.🧱 Which property matters most for a water tank? (a) flexible (b) waterproof (c) electrical conductor (d) transparent
  23. 23.🧱 Which property matters most for a plug pin? (a) transparent (b) heat insulator (c) flexible (d) electrical conductor
  24. 24.Which of these needs a flexible material? (a) a plug pin (b) an oven glove (c) a car windscreen (d) a yoga mat
  25. 25.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
  26. 26.🧱 Which material is best for a cooking pot handle? (a) aluminium (b) wood or plastic (c) iron (d) copper
  27. 27.True or false: an umbrella cover needs a waterproof material. (a) True (b) False
  28. 28.🔍 Which is the odd one out? (a) aluminium (b) steel (c) rubber (d) copper
  29. 29.Which of these needs a heat insulator? (a) a car windscreen (b) a spectacle lens (c) a boat hull (d) a cooking pot handle
  30. 30.Which of these needs a heat insulator? (a) a magnifier lens (b) a car windscreen (c) a spectacle lens (d) an oven glove
  31. 31.🔍 Which is the odd one out? (a) glass (b) plastic (c) iron (d) rubber
  32. 32.🔍 Which is the odd one out? (a) cotton cloth (b) copper (c) graphite (d) steel
  33. 33.🧱 Which material is best for a window pane? (a) brick (b) wood (c) glass (d) steel
  34. 34.Which of these needs a transparent material? (a) a plug pin (b) a water tank (c) a skipping rope (d) a car windscreen
  35. 35.🔍 Which is the odd one out? (a) iron (b) graphite (c) clay pottery (d) aluminium
  36. 36.🧱 Is dry wood an electrical conductor or an insulator? (a) a conductor (b) an insulator
  37. 37.🧱 Is plastic an electrical conductor or an insulator? (a) an insulator (b) a conductor
  38. 38.🧱 Which property matters most for a roof sheet? (a) waterproof (b) electrical conductor (c) flexible (d) heat insulator
  39. 39.🧱 Which material is best for a raincoat? (a) cotton wool (b) paper (c) cardboard (d) plastic-coated cloth
  40. 40.🧱 Is clay pottery an electrical conductor or an insulator? (a) an insulator (b) a conductor

Answer key

  1. steel
  2. the core of a wire
  3. an insulator
  4. True
  5. transparent
  6. a skipping rope
  7. electrical conductor
  8. flexible
  9. graphite
  10. a boat hull
  11. True
  12. a hair band
  13. a conductor
  14. brass
  15. True
  16. a spectacle lens
  17. copper
  18. heat insulator
  19. heat insulator
  20. electrical conductor
  21. a conductor
  22. waterproof
  23. electrical conductor
  24. a yoga mat
  25. a conductor
  26. wood or plastic
  27. True
  28. rubber
  29. a cooking pot handle
  30. an oven glove
  31. iron
  32. cotton cloth
  33. glass
  34. a car windscreen
  35. clay pottery
  36. an insulator
  37. an insulator
  38. waterproof
  39. plastic-coated cloth
  40. an insulator

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