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Engineering Worksheet: Materials

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

Answer key

  1. iron
  2. an oven glove
  3. a cooking pot handle
  4. glass
  5. wood or plastic
  6. electrical conductor
  7. an insulator
  8. a conductor
  9. False
  10. False
  11. waterproof
  12. heat insulator
  13. electrical conductor
  14. a conductor
  15. False
  16. True
  17. steel
  18. flexible
  19. an insulator
  20. plastic-coated cloth
  21. a skipping rope
  22. False
  23. transparent
  24. dry wood
  25. a plug pin
  26. transparent
  27. a boat hull
  28. an insulator
  29. waterproof
  30. waterproof
  31. the core of a wire
  32. copper
  33. a raincoat
  34. transparent
  35. a conductor
  36. heat insulator
  37. a conductor
  38. True
  39. True
  40. waterproof

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