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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 69 · 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 an oven glove? (a) electrical conductor (b) transparent (c) waterproof (d) heat insulator
  2. 2.🧱 Which property matters most for a boat hull? (a) heat insulator (b) transparent (c) waterproof (d) electrical conductor
  3. 3.🧱 Which material is best for a window pane? (a) wood (b) glass (c) steel (d) brick
  4. 4.Which of these needs a transparent material? (a) a boat hull (b) a magnifier lens (c) the core of a wire (d) a skipping rope
  5. 5.🧱 Is dry wood an electrical conductor or an insulator? (a) a conductor (b) an insulator
  6. 6.True or false: a water tank needs a waterproof material. (a) False (b) True
  7. 7.🧱 Which material is best for the bars inside concrete? (a) plastic (b) glass (c) steel (d) rubber
  8. 8.🧱 Which property matters most for a hair band? (a) heat insulator (b) waterproof (c) electrical conductor (d) flexible
  9. 9.🧱 Which property matters most for a spectacle lens? (a) electrical conductor (b) transparent (c) heat insulator (d) waterproof
  10. 10.🧱 Which material is best for a cooking pot handle? (a) aluminium (b) iron (c) wood or plastic (d) copper
  11. 11.🧱 Which property matters most for a water tank? (a) waterproof (b) flexible (c) heat insulator (d) transparent
  12. 12.Which of these needs a waterproof material? (a) an oven glove (b) a water tank (c) a switch contact (d) a window pane
  13. 13.Which of these needs a waterproof material? (a) a raincoat (b) the core of a wire (c) a window pane (d) a magnifier lens
  14. 14.True or false: a hair band needs a flexible material. (a) True (b) False
  15. 15.🧱 Is rubber an electrical conductor or an insulator? (a) a conductor (b) an insulator
  16. 16.🧱 Is clay pottery an electrical conductor or an insulator? (a) an insulator (b) a conductor
  17. 17.Which of these needs a flexible material? (a) a spectacle lens (b) a car windscreen (c) a window pane (d) a skipping rope
  18. 18.🔍 Which is the odd one out? (a) dry wood (b) copper (c) glass (d) clay pottery
  19. 19.True or false: a spectacle lens needs a transparent material. (a) True (b) False
  20. 20.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  21. 21.🔍 Which is the odd one out? (a) steel (b) copper (c) aluminium (d) cotton cloth
  22. 22.🧱 Which material is best for a raincoat? (a) cardboard (b) cotton wool (c) plastic-coated cloth (d) paper
  23. 23.🔍 Which is the odd one out? (a) steel (b) dry wood (c) brass (d) aluminium
  24. 24.🧱 Which property matters most for a roof sheet? (a) electrical conductor (b) flexible (c) waterproof (d) heat insulator
  25. 25.True or false: a skipping rope needs a flexible material. (a) False (b) True
  26. 26.🔍 Which is the odd one out? (a) brass (b) clay pottery (c) copper (d) graphite
  27. 27.🔍 Which is the odd one out? (a) aluminium (b) brass (c) plastic (d) graphite
  28. 28.Which of these needs a transparent material? (a) a cooking pot handle (b) a car seat belt (c) a car windscreen (d) a skipping rope
  29. 29.Which of these needs a heat insulator? (a) the core of a wire (b) a cooking pot handle (c) a hair band (d) a boat hull
  30. 30.🧱 Is plastic an electrical conductor or an insulator? (a) an insulator (b) a conductor
  31. 31.Which of these needs a waterproof material? (a) a boat hull (b) a spectacle lens (c) a tea flask lining (d) the core of a wire
  32. 32.True or false: a boat hull needs a transparent material. (a) True (b) False
  33. 33.🧱 Is iron an electrical conductor or an insulator? (a) a conductor (b) an insulator
  34. 34.🧱 Which material is best for the core of an electric wire? (a) wood (b) glass (c) copper (d) rubber
  35. 35.🔍 Which is the odd one out? (a) iron (b) brass (c) glass (d) graphite
  36. 36.🔍 Which is the odd one out? (a) rubber (b) plastic (c) iron (d) cotton cloth
  37. 37.True or false: a car seat belt needs a heat insulator. (a) False (b) True
  38. 38.Which of these needs a flexible material? (a) a hair band (b) a cooking pot handle (c) a magnifier lens (d) a window pane
  39. 39.🧱 Is brass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  40. 40.🧱 Which property matters most for a yoga mat? (a) transparent (b) waterproof (c) flexible (d) heat insulator

Answer key

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

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