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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 144 · 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.True or false: a cooking pot handle needs a heat insulator. (a) False (b) True
  2. 2.🧱 Is graphite an electrical conductor or an insulator? (a) an insulator (b) a conductor
  3. 3.🔍 Which is the odd one out? (a) graphite (b) plastic (c) steel (d) brass
  4. 4.🔍 Which is the odd one out? (a) brass (b) rubber (c) iron (d) copper
  5. 5.True or false: a yoga mat needs a waterproof material. (a) True (b) False
  6. 6.🧱 Which material is best for a raincoat? (a) cotton wool (b) paper (c) cardboard (d) plastic-coated cloth
  7. 7.🧱 Which material is best for the bars inside concrete? (a) steel (b) plastic (c) rubber (d) glass
  8. 8.🧱 Which property matters most for a window pane? (a) flexible (b) heat insulator (c) transparent (d) waterproof
  9. 9.True or false: a hair band needs a flexible material. (a) False (b) True
  10. 10.🔍 Which is the odd one out? (a) steel (b) copper (c) dry wood (d) brass
  11. 11.Which of these needs an electrical conductor? (a) a window pane (b) a plug pin (c) a cooking pot handle (d) a yoga mat
  12. 12.🧱 Which material is best for the core of an electric wire? (a) wood (b) glass (c) rubber (d) copper
  13. 13.Which of these needs a waterproof material? (a) a water tank (b) a plug pin (c) a spectacle lens (d) the core of a wire
  14. 14.Which of these needs a flexible material? (a) a water tank (b) a magnifier lens (c) a cooking pot handle (d) a hair band
  15. 15.🧱 Which property matters most for a yoga mat? (a) flexible (b) heat insulator (c) transparent (d) waterproof
  16. 16.True or false: a spectacle lens needs a transparent material. (a) True (b) False
  17. 17.🧱 Which property matters most for a raincoat? (a) heat insulator (b) waterproof (c) flexible (d) electrical conductor
  18. 18.True or false: a car seat belt needs a heat insulator. (a) False (b) True
  19. 19.🧱 Which material is best for a window pane? (a) steel (b) brick (c) wood (d) glass
  20. 20.True or false: the core of a wire needs a flexible material. (a) True (b) False
  21. 21.🧱 Is dry wood an electrical conductor or an insulator? (a) an insulator (b) a conductor
  22. 22.Which of these needs a transparent material? (a) a raincoat (b) a tea flask lining (c) an oven glove (d) a magnifier lens
  23. 23.🧱 Which property matters most for a skipping rope? (a) transparent (b) flexible (c) electrical conductor (d) waterproof
  24. 24.Which of these needs a heat insulator? (a) a water tank (b) a switch contact (c) a yoga mat (d) a cooking pot handle
  25. 25.True or false: a window pane needs a heat insulator. (a) False (b) True
  26. 26.🧱 Is plastic an electrical conductor or an insulator? (a) an insulator (b) a conductor
  27. 27.True or false: a roof sheet needs a transparent material. (a) True (b) False
  28. 28.True or false: a yoga mat needs a transparent material. (a) True (b) False
  29. 29.🧱 Is aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
  30. 30.🧱 Is glass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  31. 31.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
  32. 32.🧱 Is rubber an electrical conductor or an insulator? (a) a conductor (b) an insulator
  33. 33.True or false: a boat hull needs an electrical conductor. (a) False (b) True
  34. 34.True or false: a spectacle lens needs an electrical conductor. (a) True (b) False
  35. 35.🧱 Is clay pottery an electrical conductor or an insulator? (a) an insulator (b) a conductor
  36. 36.🧱 Which property matters most for a boat hull? (a) waterproof (b) electrical conductor (c) transparent (d) flexible
  37. 37.🔍 Which is the odd one out? (a) cotton cloth (b) dry wood (c) rubber (d) iron
  38. 38.True or false: a boat hull needs a flexible material. (a) True (b) False
  39. 39.True or false: a cooking pot handle needs a waterproof material. (a) True (b) False
  40. 40.🔍 Which is the odd one out? (a) clay pottery (b) rubber (c) copper (d) cotton cloth

Answer key

  1. True
  2. a conductor
  3. plastic
  4. rubber
  5. False
  6. plastic-coated cloth
  7. steel
  8. transparent
  9. True
  10. dry wood
  11. a plug pin
  12. copper
  13. a water tank
  14. a hair band
  15. flexible
  16. True
  17. waterproof
  18. False
  19. glass
  20. False
  21. an insulator
  22. a magnifier lens
  23. flexible
  24. a cooking pot handle
  25. False
  26. an insulator
  27. False
  28. False
  29. a conductor
  30. an insulator
  31. a conductor
  32. an insulator
  33. False
  34. False
  35. an insulator
  36. waterproof
  37. iron
  38. False
  39. False
  40. copper

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