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Engineering Worksheet: Materials

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

Answer key

  1. plastic-coated cloth
  2. clay pottery
  3. flexible
  4. an insulator
  5. glass
  6. flexible
  7. copper
  8. True
  9. heat insulator
  10. a conductor
  11. True
  12. True
  13. True
  14. brass
  15. heat insulator
  16. a conductor
  17. dry wood
  18. False
  19. a plug pin
  20. a cooking pot handle
  21. steel
  22. flexible
  23. transparent
  24. a magnifier lens
  25. False
  26. glass
  27. steel
  28. False
  29. an insulator
  30. wood or plastic
  31. False
  32. heat insulator
  33. a car seat belt
  34. waterproof
  35. a switch contact
  36. True
  37. a boat hull
  38. a window pane
  39. waterproof
  40. the core of a wire

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