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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 463 · 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.True or false: a magnifier lens needs a flexible material. (a) True (b) False
  3. 3.🔍 Which is the odd one out? (a) dry wood (b) iron (c) rubber (d) cotton cloth
  4. 4.🧱 Which property matters most for a yoga mat? (a) waterproof (b) electrical conductor (c) heat insulator (d) flexible
  5. 5.True or false: a yoga mat needs an electrical conductor. (a) True (b) False
  6. 6.🔍 Which is the odd one out? (a) dry wood (b) graphite (c) copper (d) steel
  7. 7.🔍 Which is the odd one out? (a) iron (b) brass (c) graphite (d) rubber
  8. 8.True or false: a car windscreen needs a transparent material. (a) False (b) True
  9. 9.Which of these needs a flexible material? (a) a skipping rope (b) a plug pin (c) a tea flask lining (d) a water tank
  10. 10.🧱 Which material is best for a cooking pot handle? (a) copper (b) iron (c) aluminium (d) wood or plastic
  11. 11.🧱 Is dry wood an electrical conductor or an insulator? (a) an insulator (b) a conductor
  12. 12.🔍 Which is the odd one out? (a) copper (b) glass (c) dry wood (d) plastic
  13. 13.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  14. 14.🔍 Which is the odd one out? (a) cotton cloth (b) aluminium (c) copper (d) graphite
  15. 15.Which of these needs a heat insulator? (a) a window pane (b) an umbrella cover (c) a water tank (d) an oven glove
  16. 16.🧱 Which property matters most for a switch contact? (a) transparent (b) electrical conductor (c) flexible (d) waterproof
  17. 17.🧱 Which property matters most for an umbrella cover? (a) transparent (b) heat insulator (c) waterproof (d) electrical conductor
  18. 18.True or false: a skipping rope needs a flexible material. (a) True (b) False
  19. 19.🧱 Which property matters most for a boat hull? (a) flexible (b) waterproof (c) electrical conductor (d) heat insulator
  20. 20.Which of these needs a waterproof material? (a) a skipping rope (b) an umbrella cover (c) a hair band (d) an oven glove
  21. 21.True or false: a plug pin needs an electrical conductor. (a) False (b) True
  22. 22.🔍 Which is the odd one out? (a) glass (b) clay pottery (c) plastic (d) aluminium
  23. 23.🧱 Which material is best for the core of an electric wire? (a) rubber (b) copper (c) glass (d) wood
  24. 24.🧱 Which property matters most for a hair band? (a) transparent (b) heat insulator (c) waterproof (d) flexible
  25. 25.True or false: a magnifier lens needs a transparent material. (a) False (b) True
  26. 26.🧱 Is iron an electrical conductor or an insulator? (a) a conductor (b) an insulator
  27. 27.🧱 Which property matters most for a tea flask lining? (a) transparent (b) electrical conductor (c) waterproof (d) heat insulator
  28. 28.🧱 Which property matters most for a skipping rope? (a) flexible (b) waterproof (c) electrical conductor (d) transparent
  29. 29.🧱 Is graphite an electrical conductor or an insulator? (a) a conductor (b) an insulator
  30. 30.True or false: a window pane needs a transparent material. (a) False (b) True
  31. 31.Which of these needs a waterproof material? (a) a car seat belt (b) a raincoat (c) a spectacle lens (d) a yoga mat
  32. 32.🧱 Which property matters most for a roof sheet? (a) heat insulator (b) electrical conductor (c) transparent (d) waterproof
  33. 33.Which of these needs a waterproof material? (a) a car windscreen (b) a magnifier lens (c) a plug pin (d) a water tank
  34. 34.🔍 Which is the odd one out? (a) clay pottery (b) rubber (c) dry wood (d) steel
  35. 35.🧱 Which property matters most for a raincoat? (a) transparent (b) heat insulator (c) waterproof (d) flexible
  36. 36.🧱 Which material is best for a raincoat? (a) cotton wool (b) cardboard (c) paper (d) plastic-coated cloth
  37. 37.🧱 Is glass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  38. 38.True or false: a hair band needs a flexible material. (a) True (b) False
  39. 39.True or false: a skipping rope needs a transparent material. (a) True (b) False
  40. 40.Which of these needs a transparent material? (a) a window pane (b) a switch contact (c) an oven glove (d) a boat hull

Answer key

  1. a conductor
  2. False
  3. iron
  4. flexible
  5. False
  6. dry wood
  7. rubber
  8. True
  9. a skipping rope
  10. wood or plastic
  11. an insulator
  12. copper
  13. a conductor
  14. cotton cloth
  15. an oven glove
  16. electrical conductor
  17. waterproof
  18. True
  19. waterproof
  20. an umbrella cover
  21. True
  22. aluminium
  23. copper
  24. flexible
  25. True
  26. a conductor
  27. heat insulator
  28. flexible
  29. a conductor
  30. True
  31. a raincoat
  32. waterproof
  33. a water tank
  34. steel
  35. waterproof
  36. plastic-coated cloth
  37. an insulator
  38. True
  39. False
  40. a window pane

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