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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 537 · 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 plug pin? (a) flexible (b) heat insulator (c) electrical conductor (d) transparent
  2. 2.Which of these needs a transparent material? (a) a car windscreen (b) a water tank (c) an umbrella cover (d) a hair band
  3. 3.🔍 Which is the odd one out? (a) dry wood (b) brass (c) glass (d) plastic
  4. 4.🧱 Which property matters most for a raincoat? (a) waterproof (b) flexible (c) transparent (d) heat insulator
  5. 5.🧱 Which property matters most for a water tank? (a) flexible (b) transparent (c) electrical conductor (d) waterproof
  6. 6.🧱 Which property matters most for a skipping rope? (a) waterproof (b) transparent (c) flexible (d) electrical conductor
  7. 7.True or false: a raincoat needs a flexible material. (a) True (b) False
  8. 8.🧱 Which property matters most for a yoga mat? (a) transparent (b) flexible (c) heat insulator (d) electrical conductor
  9. 9.🔍 Which is the odd one out? (a) glass (b) dry wood (c) iron (d) cotton cloth
  10. 10.Which of these needs an electrical conductor? (a) a yoga mat (b) an umbrella cover (c) a boat hull (d) the core of a wire
  11. 11.🧱 Which property matters most for an umbrella cover? (a) electrical conductor (b) heat insulator (c) waterproof (d) flexible
  12. 12.🔍 Which is the odd one out? (a) copper (b) glass (c) brass (d) steel
  13. 13.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  14. 14.🧱 Which material is best for the bars inside concrete? (a) plastic (b) glass (c) rubber (d) steel
  15. 15.🧱 Which property matters most for a boat hull? (a) transparent (b) flexible (c) heat insulator (d) waterproof
  16. 16.🔍 Which is the odd one out? (a) plastic (b) rubber (c) graphite (d) glass
  17. 17.Which of these needs an electrical conductor? (a) a cooking pot handle (b) a car seat belt (c) a water tank (d) a plug pin
  18. 18.True or false: the core of a wire needs a waterproof material. (a) True (b) False
  19. 19.True or false: a window pane needs a transparent material. (a) True (b) False
  20. 20.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  21. 21.Which of these needs a transparent material? (a) a plug pin (b) a yoga mat (c) an oven glove (d) a magnifier lens
  22. 22.Which of these needs a heat insulator? (a) a water tank (b) a boat hull (c) the core of a wire (d) an oven glove
  23. 23.Which of these needs a waterproof material? (a) a skipping rope (b) a spectacle lens (c) a boat hull (d) a tea flask lining
  24. 24.🧱 Which property matters most for a window pane? (a) transparent (b) waterproof (c) flexible (d) electrical conductor
  25. 25.Which of these needs a waterproof material? (a) a cooking pot handle (b) a switch contact (c) a plug pin (d) an umbrella cover
  26. 26.🧱 Which material is best for a window pane? (a) steel (b) glass (c) wood (d) brick
  27. 27.True or false: a magnifier lens needs a transparent material. (a) True (b) False
  28. 28.🧱 Which material is best for the core of an electric wire? (a) copper (b) rubber (c) wood (d) glass
  29. 29.Which of these needs a waterproof material? (a) a switch contact (b) a raincoat (c) an oven glove (d) a magnifier lens
  30. 30.🧱 Which property matters most for a switch contact? (a) electrical conductor (b) transparent (c) waterproof (d) heat insulator
  31. 31.🧱 Which property matters most for a car windscreen? (a) heat insulator (b) electrical conductor (c) transparent (d) flexible
  32. 32.True or false: a car seat belt needs a heat insulator. (a) False (b) True
  33. 33.🧱 Which material is best for a cooking pot handle? (a) copper (b) iron (c) aluminium (d) wood or plastic
  34. 34.Which of these needs a flexible material? (a) an umbrella cover (b) a yoga mat (c) a car windscreen (d) a spectacle lens
  35. 35.Which of these needs a flexible material? (a) a hair band (b) a plug pin (c) an umbrella cover (d) a spectacle lens
  36. 36.🧱 Is plastic an electrical conductor or an insulator? (a) an insulator (b) a conductor
  37. 37.🔍 Which is the odd one out? (a) brass (b) steel (c) copper (d) cotton cloth
  38. 38.🧱 Is clay pottery an electrical conductor or an insulator? (a) a conductor (b) an insulator
  39. 39.🧱 Which property matters most for a car seat belt? (a) transparent (b) electrical conductor (c) flexible (d) waterproof
  40. 40.🧱 Is dry wood an electrical conductor or an insulator? (a) a conductor (b) an insulator

Answer key

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

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