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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 373 · 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 hair band? (a) heat insulator (b) waterproof (c) flexible (d) transparent
  2. 2.🔍 Which is the odd one out? (a) glass (b) graphite (c) steel (d) brass
  3. 3.🔍 Which is the odd one out? (a) glass (b) clay pottery (c) rubber (d) steel
  4. 4.🧱 Which material is best for the bars inside concrete? (a) steel (b) glass (c) plastic (d) rubber
  5. 5.🧱 Which property matters most for a water tank? (a) waterproof (b) flexible (c) electrical conductor (d) heat insulator
  6. 6.🧱 Is glass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  7. 7.🧱 Which property matters most for the core of a wire? (a) waterproof (b) transparent (c) flexible (d) electrical conductor
  8. 8.🧱 Which property matters most for a tea flask lining? (a) flexible (b) waterproof (c) heat insulator (d) transparent
  9. 9.Which of these needs an electrical conductor? (a) a spectacle lens (b) a plug pin (c) a tea flask lining (d) a car windscreen
  10. 10.Which of these needs a flexible material? (a) an oven glove (b) a car windscreen (c) a skipping rope (d) a plug pin
  11. 11.True or false: a switch contact needs an electrical conductor. (a) False (b) True
  12. 12.🧱 Which property matters most for a switch contact? (a) heat insulator (b) flexible (c) transparent (d) electrical conductor
  13. 13.Which of these needs a transparent material? (a) a spectacle lens (b) a yoga mat (c) a switch contact (d) a hair band
  14. 14.🧱 Which property matters most for a spectacle lens? (a) electrical conductor (b) heat insulator (c) transparent (d) flexible
  15. 15.🧱 Is brass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  16. 16.🧱 Which property matters most for a skipping rope? (a) transparent (b) electrical conductor (c) flexible (d) waterproof
  17. 17.🔍 Which is the odd one out? (a) graphite (b) iron (c) clay pottery (d) steel
  18. 18.🔍 Which is the odd one out? (a) rubber (b) plastic (c) brass (d) clay pottery
  19. 19.🔍 Which is the odd one out? (a) cotton cloth (b) clay pottery (c) dry wood (d) aluminium
  20. 20.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
  21. 21.🧱 Which material is best for a cooking pot handle? (a) aluminium (b) wood or plastic (c) iron (d) copper
  22. 22.Which of these needs an electrical conductor? (a) a water tank (b) a yoga mat (c) the core of a wire (d) an umbrella cover
  23. 23.Which of these needs a transparent material? (a) a roof sheet (b) a skipping rope (c) a magnifier lens (d) a yoga mat
  24. 24.🔍 Which is the odd one out? (a) glass (b) plastic (c) dry wood (d) iron
  25. 25.🧱 Which property matters most for a car windscreen? (a) waterproof (b) transparent (c) flexible (d) heat insulator
  26. 26.True or false: a car seat belt needs a heat insulator. (a) True (b) False
  27. 27.Which of these needs a flexible material? (a) a spectacle lens (b) a switch contact (c) a car windscreen (d) a yoga mat
  28. 28.True or false: the core of a wire needs a transparent material. (a) True (b) False
  29. 29.Which of these needs an electrical conductor? (a) a window pane (b) a cooking pot handle (c) a yoga mat (d) a switch contact
  30. 30.True or false: a plug pin needs an electrical conductor. (a) False (b) True
  31. 31.🧱 Which material is best for a raincoat? (a) paper (b) cardboard (c) plastic-coated cloth (d) cotton wool
  32. 32.🔍 Which is the odd one out? (a) plastic (b) graphite (c) aluminium (d) brass
  33. 33.🧱 Is aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
  34. 34.🧱 Which property matters most for a roof sheet? (a) transparent (b) waterproof (c) flexible (d) electrical conductor
  35. 35.🧱 Which property matters most for a boat hull? (a) waterproof (b) heat insulator (c) flexible (d) transparent
  36. 36.True or false: an oven glove needs a heat insulator. (a) False (b) True
  37. 37.🧱 Which property matters most for a plug pin? (a) heat insulator (b) flexible (c) electrical conductor (d) waterproof
  38. 38.True or false: a raincoat needs a flexible material. (a) False (b) True
  39. 39.Which of these needs a transparent material? (a) a cooking pot handle (b) a window pane (c) a boat hull (d) a raincoat
  40. 40.🧱 Which property matters most for an umbrella cover? (a) heat insulator (b) waterproof (c) flexible (d) transparent

Answer key

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

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