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Engineering Worksheet: Materials

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

Answer key

  1. aluminium
  2. iron
  3. flexible
  4. plastic
  5. waterproof
  6. a plug pin
  7. an insulator
  8. transparent
  9. a conductor
  10. steel
  11. False
  12. electrical conductor
  13. a raincoat
  14. an umbrella cover
  15. glass
  16. an insulator
  17. True
  18. cotton cloth
  19. False
  20. an insulator
  21. heat insulator
  22. dry wood
  23. a skipping rope
  24. an insulator
  25. a car seat belt
  26. an insulator
  27. wood or plastic
  28. steel
  29. False
  30. copper
  31. an insulator
  32. False
  33. glass
  34. a window pane
  35. False
  36. a yoga mat
  37. True
  38. electrical conductor
  39. a car windscreen
  40. True

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