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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 634 · 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.True or false: a cooking pot handle needs a heat insulator. (a) False (b) True
  2. 2.🧱 Which property matters most for a cooking pot handle? (a) waterproof (b) flexible (c) heat insulator (d) electrical conductor
  3. 3.🧱 Which property matters most for a car windscreen? (a) electrical conductor (b) transparent (c) waterproof (d) flexible
  4. 4.True or false: a car seat belt needs a flexible material. (a) True (b) False
  5. 5.Which of these needs a flexible material? (a) a car seat belt (b) a magnifier lens (c) an oven glove (d) a boat hull
  6. 6.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  7. 7.🧱 Is plastic an electrical conductor or an insulator? (a) an insulator (b) a conductor
  8. 8.🔍 Which is the odd one out? (a) clay pottery (b) glass (c) dry wood (d) steel
  9. 9.🔍 Which is the odd one out? (a) brass (b) cotton cloth (c) glass (d) rubber
  10. 10.🧱 Which property matters most for an umbrella cover? (a) flexible (b) electrical conductor (c) waterproof (d) transparent
  11. 11.🧱 Which property matters most for a roof sheet? (a) flexible (b) waterproof (c) electrical conductor (d) heat insulator
  12. 12.🔍 Which is the odd one out? (a) graphite (b) iron (c) copper (d) rubber
  13. 13.🧱 Which material is best for a raincoat? (a) paper (b) plastic-coated cloth (c) cardboard (d) cotton wool
  14. 14.Which of these needs an electrical conductor? (a) an oven glove (b) a raincoat (c) an umbrella cover (d) the core of a wire
  15. 15.🔍 Which is the odd one out? (a) iron (b) cotton cloth (c) plastic (d) rubber
  16. 16.True or false: a boat hull needs a flexible material. (a) True (b) False
  17. 17.🧱 Which property matters most for a car seat belt? (a) heat insulator (b) electrical conductor (c) flexible (d) transparent
  18. 18.Which of these needs a transparent material? (a) a magnifier lens (b) a boat hull (c) a skipping rope (d) a roof sheet
  19. 19.🧱 Which material is best for a cooking pot handle? (a) wood or plastic (b) aluminium (c) copper (d) iron
  20. 20.Which of these needs a transparent material? (a) an oven glove (b) a spectacle lens (c) a yoga mat (d) a hair band
  21. 21.🧱 Which material is best for the core of an electric wire? (a) rubber (b) wood (c) glass (d) copper
  22. 22.🧱 Which property matters most for an oven glove? (a) waterproof (b) electrical conductor (c) heat insulator (d) transparent
  23. 23.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  24. 24.True or false: a tea flask lining needs a transparent material. (a) True (b) False
  25. 25.🧱 Which property matters most for a magnifier lens? (a) transparent (b) electrical conductor (c) flexible (d) waterproof
  26. 26.🧱 Is aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
  27. 27.Which of these needs a heat insulator? (a) a car seat belt (b) a skipping rope (c) a window pane (d) a cooking pot handle
  28. 28.🧱 Which property matters most for a yoga mat? (a) flexible (b) electrical conductor (c) heat insulator (d) transparent
  29. 29.🧱 Which property matters most for the core of a wire? (a) heat insulator (b) transparent (c) electrical conductor (d) flexible
  30. 30.True or false: a hair band needs a flexible material. (a) True (b) False
  31. 31.Which of these needs a waterproof material? (a) a skipping rope (b) a switch contact (c) an umbrella cover (d) a car windscreen
  32. 32.Which of these needs a heat insulator? (a) a tea flask lining (b) a switch contact (c) a car windscreen (d) a window pane
  33. 33.🧱 Is clay pottery an electrical conductor or an insulator? (a) an insulator (b) a conductor
  34. 34.🧱 Is rubber an electrical conductor or an insulator? (a) an insulator (b) a conductor
  35. 35.🔍 Which is the odd one out? (a) aluminium (b) graphite (c) iron (d) dry wood
  36. 36.Which of these needs a transparent material? (a) an umbrella cover (b) a skipping rope (c) a car windscreen (d) a boat hull
  37. 37.Which of these needs an electrical conductor? (a) a yoga mat (b) a window pane (c) a switch contact (d) a water tank
  38. 38.True or false: a magnifier lens needs a heat insulator. (a) False (b) True
  39. 39.🧱 Which property matters most for a skipping rope? (a) electrical conductor (b) flexible (c) transparent (d) heat insulator
  40. 40.True or false: an umbrella cover needs a waterproof material. (a) True (b) False

Answer key

  1. True
  2. heat insulator
  3. transparent
  4. True
  5. a car seat belt
  6. a conductor
  7. an insulator
  8. steel
  9. brass
  10. waterproof
  11. waterproof
  12. rubber
  13. plastic-coated cloth
  14. the core of a wire
  15. iron
  16. False
  17. flexible
  18. a magnifier lens
  19. wood or plastic
  20. a spectacle lens
  21. copper
  22. heat insulator
  23. a conductor
  24. False
  25. transparent
  26. a conductor
  27. a cooking pot handle
  28. flexible
  29. electrical conductor
  30. True
  31. an umbrella cover
  32. a tea flask lining
  33. an insulator
  34. an insulator
  35. dry wood
  36. a car windscreen
  37. a switch contact
  38. False
  39. flexible
  40. True

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