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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 498 · 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 hair band needs a flexible material. (a) True (b) False
  2. 2.Which of these needs a heat insulator? (a) a window pane (b) a cooking pot handle (c) a raincoat (d) an umbrella cover
  3. 3.True or false: a car seat belt needs a waterproof material. (a) True (b) False
  4. 4.True or false: a plug pin needs a waterproof material. (a) False (b) True
  5. 5.Which of these needs an electrical conductor? (a) a magnifier lens (b) a tea flask lining (c) a boat hull (d) a switch contact
  6. 6.🔍 Which is the odd one out? (a) graphite (b) copper (c) dry wood (d) iron
  7. 7.🧱 Which property matters most for a hair band? (a) electrical conductor (b) flexible (c) heat insulator (d) waterproof
  8. 8.🧱 Which material is best for a cooking pot handle? (a) iron (b) wood or plastic (c) aluminium (d) copper
  9. 9.🧱 Which property matters most for a water tank? (a) flexible (b) heat insulator (c) electrical conductor (d) waterproof
  10. 10.True or false: a boat hull needs a heat insulator. (a) False (b) True
  11. 11.True or false: a switch contact needs an electrical conductor. (a) True (b) False
  12. 12.🧱 Which property matters most for a car windscreen? (a) transparent (b) heat insulator (c) electrical conductor (d) flexible
  13. 13.🔍 Which is the odd one out? (a) plastic (b) clay pottery (c) dry wood (d) copper
  14. 14.True or false: a yoga mat needs a flexible material. (a) True (b) False
  15. 15.🧱 Is brass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  16. 16.Which of these needs an electrical conductor? (a) a hair band (b) a spectacle lens (c) a plug pin (d) a car windscreen
  17. 17.🧱 Which material is best for the core of an electric wire? (a) copper (b) glass (c) wood (d) rubber
  18. 18.🧱 Is iron an electrical conductor or an insulator? (a) a conductor (b) an insulator
  19. 19.🧱 Which material is best for a raincoat? (a) plastic-coated cloth (b) paper (c) cardboard (d) cotton wool
  20. 20.True or false: the core of a wire needs an electrical conductor. (a) False (b) True
  21. 21.🔍 Which is the odd one out? (a) steel (b) aluminium (c) plastic (d) brass
  22. 22.🔍 Which is the odd one out? (a) aluminium (b) copper (c) steel (d) clay pottery
  23. 23.Which of these needs a waterproof material? (a) an oven glove (b) a boat hull (c) a hair band (d) a spectacle lens
  24. 24.🧱 Which property matters most for a skipping rope? (a) flexible (b) transparent (c) waterproof (d) electrical conductor
  25. 25.Which of these needs a flexible material? (a) a water tank (b) a tea flask lining (c) a spectacle lens (d) a hair band
  26. 26.Which of these needs a transparent material? (a) a switch contact (b) a window pane (c) a plug pin (d) a hair band
  27. 27.🧱 Which material is best for a window pane? (a) glass (b) brick (c) steel (d) wood
  28. 28.True or false: a cooking pot handle needs a waterproof material. (a) True (b) False
  29. 29.True or false: an umbrella cover needs a transparent material. (a) True (b) False
  30. 30.Which of these needs a flexible material? (a) a skipping rope (b) a magnifier lens (c) a plug pin (d) a cooking pot handle
  31. 31.Which of these needs a waterproof material? (a) the core of a wire (b) a raincoat (c) a cooking pot handle (d) a window pane
  32. 32.True or false: a plug pin needs an electrical conductor. (a) False (b) True
  33. 33.Which of these needs an electrical conductor? (a) a roof sheet (b) the core of a wire (c) a magnifier lens (d) a cooking pot handle
  34. 34.🧱 Which property matters most for a car seat belt? (a) heat insulator (b) transparent (c) flexible (d) electrical conductor
  35. 35.Which of these needs a transparent material? (a) a spectacle lens (b) a raincoat (c) a water tank (d) an oven glove
  36. 36.True or false: a window pane needs a transparent material. (a) True (b) False
  37. 37.🧱 Which property matters most for the core of a wire? (a) flexible (b) heat insulator (c) electrical conductor (d) waterproof
  38. 38.🧱 Which property matters most for a switch contact? (a) flexible (b) transparent (c) heat insulator (d) electrical conductor
  39. 39.🧱 Which material is best for the bars inside concrete? (a) plastic (b) rubber (c) glass (d) steel
  40. 40.🧱 Which property matters most for a cooking pot handle? (a) waterproof (b) flexible (c) heat insulator (d) transparent

Answer key

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

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