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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 290 · 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.🧱 Is graphite an electrical conductor or an insulator? (a) an insulator (b) a conductor
  2. 2.🧱 Which material is best for the core of an electric wire? (a) rubber (b) wood (c) glass (d) copper
  3. 3.True or false: a car seat belt needs a flexible material. (a) True (b) False
  4. 4.🧱 Which material is best for the bars inside concrete? (a) glass (b) steel (c) rubber (d) plastic
  5. 5.True or false: a magnifier lens needs a waterproof material. (a) False (b) True
  6. 6.🔍 Which is the odd one out? (a) graphite (b) cotton cloth (c) glass (d) dry wood
  7. 7.🧱 Which property matters most for a cooking pot handle? (a) electrical conductor (b) flexible (c) heat insulator (d) transparent
  8. 8.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
  9. 9.🧱 Which property matters most for a switch contact? (a) waterproof (b) transparent (c) electrical conductor (d) flexible
  10. 10.🧱 Which property matters most for a plug pin? (a) heat insulator (b) flexible (c) electrical conductor (d) waterproof
  11. 11.True or false: a magnifier lens needs a transparent material. (a) False (b) True
  12. 12.True or false: an umbrella cover needs a waterproof material. (a) True (b) False
  13. 13.🧱 Which material is best for a raincoat? (a) paper (b) cardboard (c) cotton wool (d) plastic-coated cloth
  14. 14.Which of these needs a flexible material? (a) a skipping rope (b) a raincoat (c) a boat hull (d) a water tank
  15. 15.🔍 Which is the odd one out? (a) dry wood (b) aluminium (c) plastic (d) cotton cloth
  16. 16.Which of these needs a transparent material? (a) a plug pin (b) a water tank (c) a boat hull (d) a car windscreen
  17. 17.🧱 Which property matters most for the core of a wire? (a) flexible (b) waterproof (c) electrical conductor (d) transparent
  18. 18.Which of these needs an electrical conductor? (a) a skipping rope (b) a cooking pot handle (c) a raincoat (d) a switch contact
  19. 19.🧱 Which property matters most for a boat hull? (a) electrical conductor (b) heat insulator (c) flexible (d) waterproof
  20. 20.True or false: the core of a wire needs an electrical conductor. (a) False (b) True
  21. 21.🧱 Which material is best for a window pane? (a) glass (b) steel (c) wood (d) brick
  22. 22.🧱 Which material is best for a cooking pot handle? (a) copper (b) aluminium (c) iron (d) wood or plastic
  23. 23.Which of these needs a waterproof material? (a) a hair band (b) a boat hull (c) a car windscreen (d) a car seat belt
  24. 24.🔍 Which is the odd one out? (a) aluminium (b) brass (c) copper (d) clay pottery
  25. 25.Which of these needs a waterproof material? (a) a car windscreen (b) a car seat belt (c) an umbrella cover (d) a tea flask lining
  26. 26.True or false: a window pane needs an electrical conductor. (a) True (b) False
  27. 27.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  28. 28.🧱 Is plastic an electrical conductor or an insulator? (a) an insulator (b) a conductor
  29. 29.🧱 Which property matters most for a magnifier lens? (a) electrical conductor (b) heat insulator (c) waterproof (d) transparent
  30. 30.Which of these needs a transparent material? (a) a water tank (b) a magnifier lens (c) a yoga mat (d) a hair band
  31. 31.True or false: a roof sheet needs a flexible material. (a) False (b) True
  32. 32.🧱 Which property matters most for a roof sheet? (a) waterproof (b) flexible (c) heat insulator (d) transparent
  33. 33.🧱 Which property matters most for a window pane? (a) electrical conductor (b) flexible (c) transparent (d) waterproof
  34. 34.🔍 Which is the odd one out? (a) aluminium (b) brass (c) rubber (d) iron
  35. 35.True or false: a boat hull needs a waterproof material. (a) False (b) True
  36. 36.🧱 Is steel an electrical conductor or an insulator? (a) a conductor (b) an insulator
  37. 37.Which of these needs a flexible material? (a) a cooking pot handle (b) a switch contact (c) a car seat belt (d) a boat hull
  38. 38.🧱 Is copper an electrical conductor or an insulator? (a) a conductor (b) an insulator
  39. 39.🧱 Is clay pottery an electrical conductor or an insulator? (a) a conductor (b) an insulator
  40. 40.🧱 Which property matters most for a spectacle lens? (a) transparent (b) waterproof (c) heat insulator (d) flexible

Answer key

  1. a conductor
  2. copper
  3. True
  4. steel
  5. False
  6. graphite
  7. heat insulator
  8. a conductor
  9. electrical conductor
  10. electrical conductor
  11. True
  12. True
  13. plastic-coated cloth
  14. a skipping rope
  15. aluminium
  16. a car windscreen
  17. electrical conductor
  18. a switch contact
  19. waterproof
  20. True
  21. glass
  22. wood or plastic
  23. a boat hull
  24. clay pottery
  25. an umbrella cover
  26. False
  27. a conductor
  28. an insulator
  29. transparent
  30. a magnifier lens
  31. False
  32. waterproof
  33. transparent
  34. rubber
  35. True
  36. a conductor
  37. a car seat belt
  38. a conductor
  39. an insulator
  40. transparent

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