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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 431 · 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 a cooking pot handle? (a) copper (b) iron (c) aluminium (d) wood or plastic
  2. 2.True or false: an umbrella cover needs a waterproof material. (a) False (b) True
  3. 3.True or false: a switch contact needs an electrical conductor. (a) True (b) False
  4. 4.🧱 Is cotton cloth an electrical conductor or an insulator? (a) a conductor (b) an insulator
  5. 5.True or false: a tea flask lining needs a waterproof material. (a) True (b) False
  6. 6.🧱 Is copper an electrical conductor or an insulator? (a) a conductor (b) an insulator
  7. 7.🧱 Which property matters most for a cooking pot handle? (a) transparent (b) electrical conductor (c) heat insulator (d) waterproof
  8. 8.Which of these needs a waterproof material? (a) a car seat belt (b) a tea flask lining (c) a magnifier lens (d) a boat hull
  9. 9.🧱 Which property matters most for a car seat belt? (a) flexible (b) waterproof (c) transparent (d) heat insulator
  10. 10.🧱 Which material is best for the bars inside concrete? (a) glass (b) rubber (c) plastic (d) steel
  11. 11.🔍 Which is the odd one out? (a) glass (b) rubber (c) cotton cloth (d) steel
  12. 12.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  13. 13.🧱 Which property matters most for a raincoat? (a) flexible (b) waterproof (c) heat insulator (d) transparent
  14. 14.🧱 Which material is best for a window pane? (a) brick (b) wood (c) glass (d) steel
  15. 15.🧱 Which property matters most for a hair band? (a) electrical conductor (b) waterproof (c) flexible (d) transparent
  16. 16.Which of these needs a waterproof material? (a) the core of a wire (b) an umbrella cover (c) a tea flask lining (d) a car windscreen
  17. 17.🧱 Which property matters most for a car windscreen? (a) waterproof (b) heat insulator (c) electrical conductor (d) transparent
  18. 18.True or false: a boat hull needs a waterproof material. (a) False (b) True
  19. 19.🔍 Which is the odd one out? (a) plastic (b) brass (c) dry wood (d) cotton cloth
  20. 20.🧱 Which property matters most for a skipping rope? (a) waterproof (b) transparent (c) flexible (d) electrical conductor
  21. 21.🧱 Which material is best for a raincoat? (a) paper (b) plastic-coated cloth (c) cardboard (d) cotton wool
  22. 22.True or false: a yoga mat needs a waterproof material. (a) False (b) True
  23. 23.🧱 Which property matters most for a switch contact? (a) waterproof (b) heat insulator (c) flexible (d) electrical conductor
  24. 24.Which of these needs a waterproof material? (a) a car seat belt (b) a water tank (c) a magnifier lens (d) a spectacle lens
  25. 25.🧱 Is graphite an electrical conductor or an insulator? (a) a conductor (b) an insulator
  26. 26.🔍 Which is the odd one out? (a) rubber (b) glass (c) aluminium (d) plastic
  27. 27.Which of these needs a heat insulator? (a) a tea flask lining (b) a boat hull (c) a yoga mat (d) a skipping rope
  28. 28.🧱 Which property matters most for a plug pin? (a) waterproof (b) flexible (c) transparent (d) electrical conductor
  29. 29.Which of these needs an electrical conductor? (a) a water tank (b) a magnifier lens (c) a switch contact (d) a car windscreen
  30. 30.🧱 Which property matters most for an oven glove? (a) electrical conductor (b) waterproof (c) heat insulator (d) transparent
  31. 31.🧱 Which property matters most for the core of a wire? (a) transparent (b) heat insulator (c) flexible (d) electrical conductor
  32. 32.True or false: a car seat belt needs an electrical conductor. (a) True (b) False
  33. 33.Which of these needs a waterproof material? (a) a yoga mat (b) a hair band (c) a car windscreen (d) a raincoat
  34. 34.🧱 Which material is best for the core of an electric wire? (a) rubber (b) wood (c) copper (d) glass
  35. 35.🔍 Which is the odd one out? (a) iron (b) graphite (c) copper (d) plastic
  36. 36.🧱 Is dry wood an electrical conductor or an insulator? (a) an insulator (b) a conductor
  37. 37.🔍 Which is the odd one out? (a) graphite (b) copper (c) steel (d) rubber
  38. 38.🧱 Is clay pottery an electrical conductor or an insulator? (a) an insulator (b) a conductor
  39. 39.🔍 Which is the odd one out? (a) aluminium (b) copper (c) brass (d) glass
  40. 40.Which of these needs an electrical conductor? (a) an oven glove (b) the core of a wire (c) a car seat belt (d) a yoga mat

Answer key

  1. wood or plastic
  2. True
  3. True
  4. an insulator
  5. False
  6. a conductor
  7. heat insulator
  8. a boat hull
  9. flexible
  10. steel
  11. steel
  12. a conductor
  13. waterproof
  14. glass
  15. flexible
  16. an umbrella cover
  17. transparent
  18. True
  19. brass
  20. flexible
  21. plastic-coated cloth
  22. False
  23. electrical conductor
  24. a water tank
  25. a conductor
  26. aluminium
  27. a tea flask lining
  28. electrical conductor
  29. a switch contact
  30. heat insulator
  31. electrical conductor
  32. False
  33. a raincoat
  34. copper
  35. plastic
  36. an insulator
  37. rubber
  38. an insulator
  39. glass
  40. the core of a wire

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