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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 744 · 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.🧱 Is aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
  2. 2.🧱 Which material is best for the bars inside concrete? (a) plastic (b) steel (c) rubber (d) glass
  3. 3.Which of these needs a transparent material? (a) an umbrella cover (b) a magnifier lens (c) a tea flask lining (d) a cooking pot handle
  4. 4.🔍 Which is the odd one out? (a) rubber (b) cotton cloth (c) aluminium (d) plastic
  5. 5.True or false: a plug pin needs a waterproof material. (a) True (b) False
  6. 6.🔍 Which is the odd one out? (a) aluminium (b) steel (c) clay pottery (d) graphite
  7. 7.Which of these needs an electrical conductor? (a) a cooking pot handle (b) a hair band (c) a switch contact (d) a boat hull
  8. 8.True or false: a hair band needs a transparent material. (a) True (b) False
  9. 9.🧱 Which property matters most for the core of a wire? (a) heat insulator (b) waterproof (c) electrical conductor (d) transparent
  10. 10.🧱 Which property matters most for a water tank? (a) heat insulator (b) electrical conductor (c) transparent (d) waterproof
  11. 11.Which of these needs a flexible material? (a) a spectacle lens (b) a skipping rope (c) the core of a wire (d) an umbrella cover
  12. 12.True or false: a tea flask lining needs a transparent material. (a) False (b) True
  13. 13.🧱 Is graphite an electrical conductor or an insulator? (a) a conductor (b) an insulator
  14. 14.🧱 Which property matters most for a window pane? (a) electrical conductor (b) waterproof (c) transparent (d) heat insulator
  15. 15.🔍 Which is the odd one out? (a) aluminium (b) dry wood (c) iron (d) copper
  16. 16.🧱 Which property matters most for a raincoat? (a) electrical conductor (b) waterproof (c) flexible (d) heat insulator
  17. 17.Which of these needs a waterproof material? (a) a skipping rope (b) the core of a wire (c) a roof sheet (d) a spectacle lens
  18. 18.True or false: a raincoat needs a waterproof material. (a) True (b) False
  19. 19.🧱 Which property matters most for an oven glove? (a) waterproof (b) heat insulator (c) transparent (d) flexible
  20. 20.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  21. 21.🧱 Is rubber an electrical conductor or an insulator? (a) a conductor (b) an insulator
  22. 22.🧱 Is glass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  23. 23.🧱 Which material is best for a raincoat? (a) paper (b) cardboard (c) plastic-coated cloth (d) cotton wool
  24. 24.Which of these needs a waterproof material? (a) an umbrella cover (b) a spectacle lens (c) an oven glove (d) a skipping rope
  25. 25.Which of these needs a transparent material? (a) a tea flask lining (b) a roof sheet (c) an umbrella cover (d) a spectacle lens
  26. 26.Which of these needs a heat insulator? (a) an oven glove (b) a car windscreen (c) an umbrella cover (d) a plug pin
  27. 27.🧱 Which property matters most for a boat hull? (a) transparent (b) electrical conductor (c) heat insulator (d) waterproof
  28. 28.🔍 Which is the odd one out? (a) plastic (b) steel (c) clay pottery (d) rubber
  29. 29.🔍 Which is the odd one out? (a) clay pottery (b) iron (c) plastic (d) rubber
  30. 30.🧱 Is plastic an electrical conductor or an insulator? (a) an insulator (b) a conductor
  31. 31.🧱 Which property matters most for a switch contact? (a) waterproof (b) electrical conductor (c) flexible (d) heat insulator
  32. 32.🔍 Which is the odd one out? (a) brass (b) glass (c) iron (d) steel
  33. 33.True or false: a boat hull needs a waterproof material. (a) False (b) True
  34. 34.🔍 Which is the odd one out? (a) cotton cloth (b) brass (c) steel (d) iron
  35. 35.🧱 Which material is best for a window pane? (a) brick (b) wood (c) steel (d) glass
  36. 36.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
  37. 37.Which of these needs a heat insulator? (a) a yoga mat (b) a cooking pot handle (c) an umbrella cover (d) a car seat belt
  38. 38.🧱 Which material is best for a cooking pot handle? (a) wood or plastic (b) aluminium (c) copper (d) iron
  39. 39.Which of these needs a waterproof material? (a) a plug pin (b) a car windscreen (c) a raincoat (d) the core of a wire
  40. 40.True or false: a window pane needs a transparent material. (a) False (b) True

Answer key

  1. a conductor
  2. steel
  3. a magnifier lens
  4. aluminium
  5. False
  6. clay pottery
  7. a switch contact
  8. False
  9. electrical conductor
  10. waterproof
  11. a skipping rope
  12. False
  13. a conductor
  14. transparent
  15. dry wood
  16. waterproof
  17. a roof sheet
  18. True
  19. heat insulator
  20. a conductor
  21. an insulator
  22. an insulator
  23. plastic-coated cloth
  24. an umbrella cover
  25. a spectacle lens
  26. an oven glove
  27. waterproof
  28. steel
  29. iron
  30. an insulator
  31. electrical conductor
  32. glass
  33. True
  34. cotton cloth
  35. glass
  36. a conductor
  37. a cooking pot handle
  38. wood or plastic
  39. a raincoat
  40. True

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