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Engineering Worksheet: Materials

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

Answer key

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

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