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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 317 · 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 water tank? (a) transparent (b) flexible (c) electrical conductor (d) waterproof
  2. 2.🧱 Which property matters most for a car windscreen? (a) waterproof (b) flexible (c) transparent (d) heat insulator
  3. 3.Which of these needs a waterproof material? (a) an oven glove (b) a water tank (c) a hair band (d) a window pane
  4. 4.Which of these needs a heat insulator? (a) an oven glove (b) a switch contact (c) the core of a wire (d) a yoga mat
  5. 5.🧱 Which material is best for a window pane? (a) steel (b) brick (c) glass (d) wood
  6. 6.Which of these needs an electrical conductor? (a) a plug pin (b) a water tank (c) a car windscreen (d) a magnifier lens
  7. 7.🧱 Which material is best for the bars inside concrete? (a) steel (b) plastic (c) rubber (d) glass
  8. 8.Which of these needs a heat insulator? (a) a cooking pot handle (b) a water tank (c) a window pane (d) a raincoat
  9. 9.🧱 Which property matters most for a tea flask lining? (a) electrical conductor (b) waterproof (c) heat insulator (d) transparent
  10. 10.🔍 Which is the odd one out? (a) aluminium (b) copper (c) cotton cloth (d) graphite
  11. 11.🧱 Which material is best for the core of an electric wire? (a) wood (b) glass (c) rubber (d) copper
  12. 12.True or false: a roof sheet needs a waterproof material. (a) True (b) False
  13. 13.🧱 Which property matters most for a yoga mat? (a) flexible (b) electrical conductor (c) transparent (d) heat insulator
  14. 14.🧱 Is rubber an electrical conductor or an insulator? (a) a conductor (b) an insulator
  15. 15.🧱 Which property matters most for a skipping rope? (a) heat insulator (b) transparent (c) waterproof (d) flexible
  16. 16.🧱 Which property matters most for a boat hull? (a) heat insulator (b) transparent (c) flexible (d) waterproof
  17. 17.🔍 Which is the odd one out? (a) dry wood (b) glass (c) iron (d) plastic
  18. 18.🧱 Which property matters most for a hair band? (a) flexible (b) electrical conductor (c) transparent (d) heat insulator
  19. 19.🧱 Is cotton cloth an electrical conductor or an insulator? (a) a conductor (b) an insulator
  20. 20.🧱 Is aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
  21. 21.Which of these needs a flexible material? (a) a window pane (b) a water tank (c) a hair band (d) an umbrella cover
  22. 22.Which of these needs a waterproof material? (a) a car seat belt (b) a yoga mat (c) a switch contact (d) a boat hull
  23. 23.🧱 Is graphite an electrical conductor or an insulator? (a) a conductor (b) an insulator
  24. 24.🧱 Which property matters most for a roof sheet? (a) transparent (b) electrical conductor (c) flexible (d) waterproof
  25. 25.🧱 Which property matters most for a raincoat? (a) transparent (b) electrical conductor (c) flexible (d) waterproof
  26. 26.🧱 Which material is best for a raincoat? (a) cardboard (b) plastic-coated cloth (c) paper (d) cotton wool
  27. 27.True or false: a switch contact needs an electrical conductor. (a) True (b) False
  28. 28.True or false: the core of a wire needs an electrical conductor. (a) False (b) True
  29. 29.True or false: a boat hull needs a flexible material. (a) False (b) True
  30. 30.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
  31. 31.🧱 Which property matters most for a window pane? (a) heat insulator (b) electrical conductor (c) flexible (d) transparent
  32. 32.Which of these needs a waterproof material? (a) a roof sheet (b) a tea flask lining (c) a spectacle lens (d) a magnifier lens
  33. 33.🔍 Which is the odd one out? (a) plastic (b) clay pottery (c) cotton cloth (d) aluminium
  34. 34.Which of these needs a flexible material? (a) a cooking pot handle (b) a plug pin (c) a skipping rope (d) the core of a wire
  35. 35.🧱 Which material is best for a cooking pot handle? (a) copper (b) aluminium (c) wood or plastic (d) iron
  36. 36.🧱 Which property matters most for a car seat belt? (a) transparent (b) heat insulator (c) waterproof (d) flexible
  37. 37.🧱 Is dry wood an electrical conductor or an insulator? (a) a conductor (b) an insulator
  38. 38.🔍 Which is the odd one out? (a) steel (b) iron (c) aluminium (d) rubber
  39. 39.🧱 Is brass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  40. 40.Which of these needs a transparent material? (a) a skipping rope (b) a window pane (c) a hair band (d) a switch contact

Answer key

  1. waterproof
  2. transparent
  3. a water tank
  4. an oven glove
  5. glass
  6. a plug pin
  7. steel
  8. a cooking pot handle
  9. heat insulator
  10. cotton cloth
  11. copper
  12. True
  13. flexible
  14. an insulator
  15. flexible
  16. waterproof
  17. iron
  18. flexible
  19. an insulator
  20. a conductor
  21. a hair band
  22. a boat hull
  23. a conductor
  24. waterproof
  25. waterproof
  26. plastic-coated cloth
  27. True
  28. True
  29. False
  30. a conductor
  31. transparent
  32. a roof sheet
  33. aluminium
  34. a skipping rope
  35. wood or plastic
  36. flexible
  37. an insulator
  38. rubber
  39. a conductor
  40. a window pane

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