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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 532 · 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 skipping rope? (a) heat insulator (b) transparent (c) waterproof (d) flexible
  2. 2.🧱 Which material is best for a raincoat? (a) cotton wool (b) paper (c) cardboard (d) plastic-coated cloth
  3. 3.🔍 Which is the odd one out? (a) copper (b) dry wood (c) iron (d) graphite
  4. 4.True or false: a raincoat needs a waterproof material. (a) False (b) True
  5. 5.🔍 Which is the odd one out? (a) cotton cloth (b) dry wood (c) copper (d) rubber
  6. 6.🧱 Which property matters most for an umbrella cover? (a) heat insulator (b) waterproof (c) electrical conductor (d) flexible
  7. 7.True or false: a car seat belt needs a waterproof material. (a) False (b) True
  8. 8.True or false: a raincoat needs a transparent material. (a) True (b) False
  9. 9.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
  10. 10.Which of these needs a transparent material? (a) a switch contact (b) a magnifier lens (c) a skipping rope (d) an umbrella cover
  11. 11.🧱 Which property matters most for a plug pin? (a) flexible (b) heat insulator (c) electrical conductor (d) waterproof
  12. 12.🧱 Which material is best for a window pane? (a) wood (b) steel (c) glass (d) brick
  13. 13.🔍 Which is the odd one out? (a) glass (b) rubber (c) iron (d) dry wood
  14. 14.🧱 Is dry wood an electrical conductor or an insulator? (a) a conductor (b) an insulator
  15. 15.🧱 Is graphite an electrical conductor or an insulator? (a) a conductor (b) an insulator
  16. 16.🧱 Which property matters most for an oven glove? (a) waterproof (b) electrical conductor (c) transparent (d) heat insulator
  17. 17.True or false: an oven glove needs a heat insulator. (a) True (b) False
  18. 18.True or false: an umbrella cover needs a waterproof material. (a) True (b) False
  19. 19.🧱 Is rubber an electrical conductor or an insulator? (a) a conductor (b) an insulator
  20. 20.Which of these needs a flexible material? (a) the core of a wire (b) a tea flask lining (c) a car windscreen (d) a skipping rope
  21. 21.🧱 Which property matters most for the core of a wire? (a) transparent (b) electrical conductor (c) flexible (d) waterproof
  22. 22.Which of these needs an electrical conductor? (a) a yoga mat (b) an oven glove (c) an umbrella cover (d) the core of a wire
  23. 23.🔍 Which is the odd one out? (a) iron (b) cotton cloth (c) brass (d) aluminium
  24. 24.🧱 Which material is best for a cooking pot handle? (a) iron (b) aluminium (c) copper (d) wood or plastic
  25. 25.🧱 Which property matters most for a raincoat? (a) electrical conductor (b) transparent (c) flexible (d) waterproof
  26. 26.Which of these needs a waterproof material? (a) a switch contact (b) a cooking pot handle (c) a spectacle lens (d) a boat hull
  27. 27.🧱 Which property matters most for a boat hull? (a) transparent (b) waterproof (c) electrical conductor (d) flexible
  28. 28.True or false: a switch contact needs a heat insulator. (a) False (b) True
  29. 29.🧱 Which property matters most for a car windscreen? (a) waterproof (b) transparent (c) electrical conductor (d) flexible
  30. 30.🔍 Which is the odd one out? (a) graphite (b) aluminium (c) copper (d) glass
  31. 31.Which of these needs a flexible material? (a) a raincoat (b) the core of a wire (c) a car seat belt (d) a plug pin
  32. 32.True or false: a yoga mat needs a flexible material. (a) False (b) True
  33. 33.🧱 Which property matters most for a hair band? (a) electrical conductor (b) flexible (c) heat insulator (d) transparent
  34. 34.🔍 Which is the odd one out? (a) brass (b) steel (c) iron (d) rubber
  35. 35.Which of these needs a waterproof material? (a) a magnifier lens (b) a yoga mat (c) a water tank (d) a car windscreen
  36. 36.🔍 Which is the odd one out? (a) graphite (b) dry wood (c) glass (d) plastic
  37. 37.🧱 Which property matters most for a spectacle lens? (a) transparent (b) waterproof (c) flexible (d) heat insulator
  38. 38.🧱 Which property matters most for a tea flask lining? (a) electrical conductor (b) flexible (c) waterproof (d) heat insulator
  39. 39.True or false: the core of a wire needs an electrical conductor. (a) False (b) True
  40. 40.🧱 Which property matters most for a water tank? (a) electrical conductor (b) waterproof (c) flexible (d) transparent

Answer key

  1. flexible
  2. plastic-coated cloth
  3. dry wood
  4. True
  5. copper
  6. waterproof
  7. False
  8. False
  9. a conductor
  10. a magnifier lens
  11. electrical conductor
  12. glass
  13. iron
  14. an insulator
  15. a conductor
  16. heat insulator
  17. True
  18. True
  19. an insulator
  20. a skipping rope
  21. electrical conductor
  22. the core of a wire
  23. cotton cloth
  24. wood or plastic
  25. waterproof
  26. a boat hull
  27. waterproof
  28. False
  29. transparent
  30. glass
  31. a car seat belt
  32. True
  33. flexible
  34. rubber
  35. a water tank
  36. graphite
  37. transparent
  38. heat insulator
  39. True
  40. waterproof

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