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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 335 · 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 material is best for the bars inside concrete? (a) rubber (b) glass (c) steel (d) plastic
  2. 2.Which of these needs an electrical conductor? (a) a raincoat (b) a spectacle lens (c) a tea flask lining (d) a switch contact
  3. 3.🔍 Which is the odd one out? (a) iron (b) aluminium (c) copper (d) cotton cloth
  4. 4.🧱 Which material is best for a raincoat? (a) plastic-coated cloth (b) cardboard (c) paper (d) cotton wool
  5. 5.🧱 Which property matters most for a car windscreen? (a) flexible (b) heat insulator (c) electrical conductor (d) transparent
  6. 6.🧱 Which property matters most for a tea flask lining? (a) waterproof (b) flexible (c) electrical conductor (d) heat insulator
  7. 7.🔍 Which is the odd one out? (a) copper (b) steel (c) rubber (d) brass
  8. 8.🧱 Is brass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  9. 9.True or false: a water tank needs a waterproof material. (a) True (b) False
  10. 10.Which of these needs a waterproof material? (a) a car windscreen (b) a skipping rope (c) the core of a wire (d) a boat hull
  11. 11.🧱 Is cotton cloth an electrical conductor or an insulator? (a) an insulator (b) a conductor
  12. 12.🧱 Which material is best for the core of an electric wire? (a) wood (b) rubber (c) glass (d) copper
  13. 13.🧱 Which property matters most for a window pane? (a) transparent (b) electrical conductor (c) heat insulator (d) waterproof
  14. 14.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
  15. 15.🧱 Which property matters most for a cooking pot handle? (a) transparent (b) waterproof (c) heat insulator (d) electrical conductor
  16. 16.Which of these needs a flexible material? (a) a switch contact (b) a roof sheet (c) a boat hull (d) a hair band
  17. 17.🧱 Which material is best for a cooking pot handle? (a) copper (b) iron (c) wood or plastic (d) aluminium
  18. 18.True or false: the core of a wire needs a heat insulator. (a) False (b) True
  19. 19.🧱 Is steel an electrical conductor or an insulator? (a) a conductor (b) an insulator
  20. 20.🧱 Which property matters most for a car seat belt? (a) waterproof (b) flexible (c) heat insulator (d) transparent
  21. 21.Which of these needs a transparent material? (a) a roof sheet (b) a spectacle lens (c) a hair band (d) an umbrella cover
  22. 22.🧱 Which property matters most for a roof sheet? (a) transparent (b) electrical conductor (c) flexible (d) waterproof
  23. 23.Which of these needs a heat insulator? (a) a car windscreen (b) an oven glove (c) a roof sheet (d) a raincoat
  24. 24.🔍 Which is the odd one out? (a) copper (b) brass (c) dry wood (d) aluminium
  25. 25.🧱 Which property matters most for a magnifier lens? (a) waterproof (b) flexible (c) heat insulator (d) transparent
  26. 26.🧱 Which property matters most for an umbrella cover? (a) waterproof (b) heat insulator (c) electrical conductor (d) flexible
  27. 27.Which of these needs a transparent material? (a) a water tank (b) a skipping rope (c) a magnifier lens (d) a switch contact
  28. 28.True or false: a roof sheet needs a waterproof material. (a) False (b) True
  29. 29.🔍 Which is the odd one out? (a) glass (b) aluminium (c) copper (d) brass
  30. 30.🧱 Is rubber an electrical conductor or an insulator? (a) a conductor (b) an insulator
  31. 31.🧱 Is glass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  32. 32.Which of these needs an electrical conductor? (a) a roof sheet (b) a boat hull (c) the core of a wire (d) an umbrella cover
  33. 33.🧱 Which property matters most for a switch contact? (a) heat insulator (b) transparent (c) flexible (d) electrical conductor
  34. 34.Which of these needs a flexible material? (a) a yoga mat (b) a cooking pot handle (c) a spectacle lens (d) a raincoat
  35. 35.True or false: an oven glove needs a waterproof material. (a) True (b) False
  36. 36.🔍 Which is the odd one out? (a) clay pottery (b) steel (c) iron (d) copper
  37. 37.🧱 Which property matters most for a raincoat? (a) heat insulator (b) flexible (c) transparent (d) waterproof
  38. 38.True or false: an oven glove needs a flexible material. (a) False (b) True
  39. 39.🧱 Which property matters most for a boat hull? (a) transparent (b) flexible (c) electrical conductor (d) waterproof
  40. 40.True or false: a roof sheet needs a flexible material. (a) False (b) True

Answer key

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

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