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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 464 · 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 copper an electrical conductor or an insulator? (a) a conductor (b) an insulator
  2. 2.🧱 Which property matters most for a yoga mat? (a) electrical conductor (b) transparent (c) waterproof (d) flexible
  3. 3.🔍 Which is the odd one out? (a) rubber (b) copper (c) graphite (d) aluminium
  4. 4.🧱 Which property matters most for a boat hull? (a) electrical conductor (b) waterproof (c) heat insulator (d) flexible
  5. 5.🧱 Which material is best for a raincoat? (a) cardboard (b) cotton wool (c) plastic-coated cloth (d) paper
  6. 6.🧱 Is dry wood an electrical conductor or an insulator? (a) an insulator (b) a conductor
  7. 7.🧱 Which property matters most for a cooking pot handle? (a) electrical conductor (b) heat insulator (c) transparent (d) flexible
  8. 8.🧱 Which property matters most for a spectacle lens? (a) flexible (b) electrical conductor (c) transparent (d) waterproof
  9. 9.🧱 Is iron an electrical conductor or an insulator? (a) a conductor (b) an insulator
  10. 10.🧱 Which property matters most for a skipping rope? (a) electrical conductor (b) heat insulator (c) flexible (d) transparent
  11. 11.🧱 Is cotton cloth an electrical conductor or an insulator? (a) an insulator (b) a conductor
  12. 12.True or false: a magnifier lens needs a transparent material. (a) True (b) False
  13. 13.🧱 Which material is best for the bars inside concrete? (a) plastic (b) steel (c) rubber (d) glass
  14. 14.True or false: a switch contact needs a waterproof material. (a) True (b) False
  15. 15.Which of these needs a transparent material? (a) a window pane (b) a car seat belt (c) a skipping rope (d) a water tank
  16. 16.Which of these needs a waterproof material? (a) a raincoat (b) a switch contact (c) a skipping rope (d) a plug pin
  17. 17.🔍 Which is the odd one out? (a) rubber (b) clay pottery (c) dry wood (d) iron
  18. 18.True or false: a switch contact needs a transparent material. (a) True (b) False
  19. 19.🧱 Which property matters most for a magnifier lens? (a) waterproof (b) transparent (c) heat insulator (d) electrical conductor
  20. 20.🧱 Is graphite an electrical conductor or an insulator? (a) a conductor (b) an insulator
  21. 21.🧱 Is plastic an electrical conductor or an insulator? (a) an insulator (b) a conductor
  22. 22.🔍 Which is the odd one out? (a) clay pottery (b) copper (c) cotton cloth (d) glass
  23. 23.🧱 Which material is best for the core of an electric wire? (a) copper (b) rubber (c) glass (d) wood
  24. 24.True or false: a roof sheet needs a waterproof material. (a) True (b) False
  25. 25.True or false: a skipping rope needs a waterproof material. (a) True (b) False
  26. 26.True or false: the core of a wire needs an electrical conductor. (a) False (b) True
  27. 27.🔍 Which is the odd one out? (a) cotton cloth (b) dry wood (c) plastic (d) aluminium
  28. 28.🧱 Is rubber an electrical conductor or an insulator? (a) a conductor (b) an insulator
  29. 29.True or false: a water tank needs a flexible material. (a) True (b) False
  30. 30.🧱 Which property matters most for a car seat belt? (a) flexible (b) heat insulator (c) transparent (d) waterproof
  31. 31.🔍 Which is the odd one out? (a) rubber (b) dry wood (c) cotton cloth (d) steel
  32. 32.Which of these needs a flexible material? (a) an oven glove (b) an umbrella cover (c) a plug pin (d) a hair band
  33. 33.🧱 Is clay pottery an electrical conductor or an insulator? (a) a conductor (b) an insulator
  34. 34.Which of these needs a flexible material? (a) a spectacle lens (b) a boat hull (c) a yoga mat (d) a cooking pot handle
  35. 35.True or false: an oven glove needs a heat insulator. (a) True (b) False
  36. 36.🧱 Which property matters most for a plug pin? (a) waterproof (b) flexible (c) heat insulator (d) electrical conductor
  37. 37.True or false: a window pane needs a flexible material. (a) True (b) False
  38. 38.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  39. 39.Which of these needs a transparent material? (a) a water tank (b) a yoga mat (c) a spectacle lens (d) a cooking pot handle
  40. 40.🔍 Which is the odd one out? (a) steel (b) aluminium (c) brass (d) plastic

Answer key

  1. a conductor
  2. flexible
  3. rubber
  4. waterproof
  5. plastic-coated cloth
  6. an insulator
  7. heat insulator
  8. transparent
  9. a conductor
  10. flexible
  11. an insulator
  12. True
  13. steel
  14. False
  15. a window pane
  16. a raincoat
  17. iron
  18. False
  19. transparent
  20. a conductor
  21. an insulator
  22. copper
  23. copper
  24. True
  25. False
  26. True
  27. aluminium
  28. an insulator
  29. False
  30. flexible
  31. steel
  32. a hair band
  33. an insulator
  34. a yoga mat
  35. True
  36. electrical conductor
  37. False
  38. a conductor
  39. a spectacle lens
  40. plastic

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