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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 112 · 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 property matters most for a plug pin? (a) transparent (b) waterproof (c) heat insulator (d) electrical conductor
  2. 2.True or false: a window pane needs a flexible material. (a) False (b) True
  3. 3.Which of these needs a waterproof material? (a) a window pane (b) a raincoat (c) a skipping rope (d) a hair band
  4. 4.🧱 Is iron an electrical conductor or an insulator? (a) a conductor (b) an insulator
  5. 5.🔍 Which is the odd one out? (a) rubber (b) glass (c) clay pottery (d) aluminium
  6. 6.True or false: a switch contact needs an electrical conductor. (a) False (b) True
  7. 7.True or false: a raincoat needs a flexible material. (a) True (b) False
  8. 8.🧱 Which property matters most for an umbrella cover? (a) waterproof (b) transparent (c) heat insulator (d) electrical conductor
  9. 9.🧱 Which material is best for the core of an electric wire? (a) wood (b) rubber (c) copper (d) glass
  10. 10.🧱 Which property matters most for a cooking pot handle? (a) transparent (b) heat insulator (c) flexible (d) electrical conductor
  11. 11.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
  12. 12.Which of these needs a flexible material? (a) a roof sheet (b) a raincoat (c) a cooking pot handle (d) a yoga mat
  13. 13.Which of these needs a heat insulator? (a) a car windscreen (b) a hair band (c) a tea flask lining (d) a yoga mat
  14. 14.🔍 Which is the odd one out? (a) aluminium (b) copper (c) rubber (d) steel
  15. 15.Which of these needs a flexible material? (a) the core of a wire (b) a tea flask lining (c) a hair band (d) a cooking pot handle
  16. 16.True or false: a yoga mat needs a flexible material. (a) False (b) True
  17. 17.🧱 Which property matters most for a car seat belt? (a) flexible (b) waterproof (c) electrical conductor (d) transparent
  18. 18.🔍 Which is the odd one out? (a) clay pottery (b) glass (c) plastic (d) brass
  19. 19.True or false: a window pane needs a transparent material. (a) True (b) False
  20. 20.True or false: a water tank needs a transparent material. (a) False (b) True
  21. 21.🧱 Which material is best for a cooking pot handle? (a) aluminium (b) wood or plastic (c) iron (d) copper
  22. 22.🧱 Which material is best for the bars inside concrete? (a) rubber (b) glass (c) plastic (d) steel
  23. 23.🧱 Which property matters most for a magnifier lens? (a) flexible (b) heat insulator (c) waterproof (d) transparent
  24. 24.Which of these needs an electrical conductor? (a) a magnifier lens (b) the core of a wire (c) a tea flask lining (d) a boat hull
  25. 25.True or false: the core of a wire needs an electrical conductor. (a) False (b) True
  26. 26.🔍 Which is the odd one out? (a) copper (b) steel (c) brass (d) plastic
  27. 27.🧱 Which material is best for a window pane? (a) glass (b) steel (c) wood (d) brick
  28. 28.Which of these needs a flexible material? (a) a boat hull (b) a car seat belt (c) a spectacle lens (d) a car windscreen
  29. 29.Which of these needs a waterproof material? (a) an oven glove (b) a yoga mat (c) a spectacle lens (d) a boat hull
  30. 30.🔍 Which is the odd one out? (a) graphite (b) glass (c) aluminium (d) iron
  31. 31.🔍 Which is the odd one out? (a) clay pottery (b) steel (c) dry wood (d) plastic
  32. 32.🧱 Is graphite an electrical conductor or an insulator? (a) a conductor (b) an insulator
  33. 33.🧱 Which material is best for a raincoat? (a) cardboard (b) paper (c) plastic-coated cloth (d) cotton wool
  34. 34.🧱 Is dry wood an electrical conductor or an insulator? (a) an insulator (b) a conductor
  35. 35.🧱 Is glass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  36. 36.🧱 Which property matters most for a window pane? (a) heat insulator (b) electrical conductor (c) transparent (d) waterproof
  37. 37.True or false: a plug pin needs a transparent material. (a) True (b) False
  38. 38.True or false: a raincoat needs a waterproof material. (a) True (b) False
  39. 39.True or false: an umbrella cover needs a waterproof material. (a) True (b) False
  40. 40.🔍 Which is the odd one out? (a) steel (b) aluminium (c) dry wood (d) copper

Answer key

  1. electrical conductor
  2. False
  3. a raincoat
  4. a conductor
  5. aluminium
  6. True
  7. False
  8. waterproof
  9. copper
  10. heat insulator
  11. an insulator
  12. a yoga mat
  13. a tea flask lining
  14. rubber
  15. a hair band
  16. True
  17. flexible
  18. brass
  19. True
  20. False
  21. wood or plastic
  22. steel
  23. transparent
  24. the core of a wire
  25. True
  26. plastic
  27. glass
  28. a car seat belt
  29. a boat hull
  30. glass
  31. steel
  32. a conductor
  33. plastic-coated cloth
  34. an insulator
  35. an insulator
  36. transparent
  37. False
  38. True
  39. True
  40. dry wood

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