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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 391 · 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 is the odd one out? (a) aluminium (b) dry wood (c) steel (d) brass
  2. 2.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  3. 3.Which of these needs a heat insulator? (a) a window pane (b) a car seat belt (c) a cooking pot handle (d) a car windscreen
  4. 4.🧱 Which property matters most for a boat hull? (a) transparent (b) waterproof (c) electrical conductor (d) flexible
  5. 5.True or false: a window pane needs an electrical conductor. (a) True (b) False
  6. 6.🔍 Which is the odd one out? (a) graphite (b) rubber (c) clay pottery (d) glass
  7. 7.🧱 Which material is best for the core of an electric wire? (a) rubber (b) glass (c) copper (d) wood
  8. 8.Which of these needs a waterproof material? (a) a car seat belt (b) a boat hull (c) an oven glove (d) a plug pin
  9. 9.True or false: an umbrella cover needs a waterproof material. (a) False (b) True
  10. 10.🔍 Which is the odd one out? (a) copper (b) steel (c) rubber (d) brass
  11. 11.True or false: a spectacle lens needs a heat insulator. (a) True (b) False
  12. 12.Which of these needs a flexible material? (a) an umbrella cover (b) a spectacle lens (c) a window pane (d) a skipping rope
  13. 13.Which of these needs a heat insulator? (a) a switch contact (b) a boat hull (c) an oven glove (d) an umbrella cover
  14. 14.🧱 Which property matters most for a skipping rope? (a) flexible (b) waterproof (c) electrical conductor (d) heat insulator
  15. 15.🔍 Which is the odd one out? (a) clay pottery (b) plastic (c) steel (d) glass
  16. 16.🧱 Is aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
  17. 17.🧱 Which material is best for the bars inside concrete? (a) plastic (b) rubber (c) steel (d) glass
  18. 18.🧱 Which property matters most for a water tank? (a) electrical conductor (b) flexible (c) waterproof (d) transparent
  19. 19.🧱 Is dry wood an electrical conductor or an insulator? (a) a conductor (b) an insulator
  20. 20.🧱 Is copper an electrical conductor or an insulator? (a) a conductor (b) an insulator
  21. 21.True or false: a cooking pot handle needs a flexible material. (a) False (b) True
  22. 22.True or false: a switch contact needs a flexible material. (a) False (b) True
  23. 23.🔍 Which is the odd one out? (a) copper (b) glass (c) graphite (d) steel
  24. 24.🔍 Which is the odd one out? (a) copper (b) iron (c) plastic (d) steel
  25. 25.🧱 Which material is best for a cooking pot handle? (a) iron (b) wood or plastic (c) aluminium (d) copper
  26. 26.True or false: a window pane needs a transparent material. (a) False (b) True
  27. 27.🔍 Which is the odd one out? (a) brass (b) steel (c) clay pottery (d) aluminium
  28. 28.Which of these needs an electrical conductor? (a) a cooking pot handle (b) a tea flask lining (c) a window pane (d) a plug pin
  29. 29.True or false: a raincoat needs a heat insulator. (a) True (b) False
  30. 30.🔍 Which is the odd one out? (a) cotton cloth (b) steel (c) brass (d) iron
  31. 31.🔍 Which is the odd one out? (a) rubber (b) dry wood (c) cotton cloth (d) aluminium
  32. 32.Which of these needs a waterproof material? (a) a tea flask lining (b) a roof sheet (c) a plug pin (d) a spectacle lens
  33. 33.True or false: a roof sheet needs a waterproof material. (a) False (b) True
  34. 34.🧱 Which material is best for a raincoat? (a) plastic-coated cloth (b) cotton wool (c) paper (d) cardboard
  35. 35.Which of these needs a waterproof material? (a) a car seat belt (b) a water tank (c) a cooking pot handle (d) a magnifier lens
  36. 36.🧱 Is brass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  37. 37.🧱 Is glass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  38. 38.True or false: a cooking pot handle needs a heat insulator. (a) True (b) False
  39. 39.🧱 Which property matters most for a roof sheet? (a) flexible (b) electrical conductor (c) heat insulator (d) waterproof
  40. 40.True or false: a yoga mat needs a transparent material. (a) False (b) True

Answer key

  1. dry wood
  2. a conductor
  3. a cooking pot handle
  4. waterproof
  5. False
  6. graphite
  7. copper
  8. a boat hull
  9. True
  10. rubber
  11. False
  12. a skipping rope
  13. an oven glove
  14. flexible
  15. steel
  16. a conductor
  17. steel
  18. waterproof
  19. an insulator
  20. a conductor
  21. False
  22. False
  23. glass
  24. plastic
  25. wood or plastic
  26. True
  27. clay pottery
  28. a plug pin
  29. False
  30. cotton cloth
  31. aluminium
  32. a roof sheet
  33. True
  34. plastic-coated cloth
  35. a water tank
  36. a conductor
  37. an insulator
  38. True
  39. waterproof
  40. False

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