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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 570 · 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 of these needs a waterproof material? (a) a skipping rope (b) a car windscreen (c) a spectacle lens (d) a water tank
  2. 2.🔍 Which is the odd one out? (a) steel (b) dry wood (c) copper (d) brass
  3. 3.🔍 Which is the odd one out? (a) steel (b) aluminium (c) rubber (d) copper
  4. 4.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  5. 5.🧱 Is aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
  6. 6.Which of these needs a heat insulator? (a) a magnifier lens (b) a tea flask lining (c) a skipping rope (d) a boat hull
  7. 7.🧱 Which property matters most for a water tank? (a) heat insulator (b) electrical conductor (c) waterproof (d) transparent
  8. 8.🔍 Which is the odd one out? (a) rubber (b) iron (c) dry wood (d) glass
  9. 9.🧱 Which property matters most for an umbrella cover? (a) heat insulator (b) electrical conductor (c) waterproof (d) flexible
  10. 10.🧱 Is rubber an electrical conductor or an insulator? (a) a conductor (b) an insulator
  11. 11.🔍 Which is the odd one out? (a) aluminium (b) clay pottery (c) steel (d) copper
  12. 12.🧱 Which property matters most for a raincoat? (a) flexible (b) heat insulator (c) waterproof (d) electrical conductor
  13. 13.🧱 Which property matters most for a tea flask lining? (a) flexible (b) heat insulator (c) electrical conductor (d) transparent
  14. 14.Which of these needs a waterproof material? (a) the core of a wire (b) a roof sheet (c) a cooking pot handle (d) a yoga mat
  15. 15.🧱 Which material is best for a window pane? (a) wood (b) brick (c) glass (d) steel
  16. 16.Which of these needs a flexible material? (a) a car windscreen (b) a hair band (c) a plug pin (d) a tea flask lining
  17. 17.🧱 Which property matters most for a car windscreen? (a) electrical conductor (b) transparent (c) heat insulator (d) waterproof
  18. 18.🧱 Which property matters most for a cooking pot handle? (a) transparent (b) heat insulator (c) flexible (d) electrical conductor
  19. 19.🧱 Is clay pottery an electrical conductor or an insulator? (a) a conductor (b) an insulator
  20. 20.🧱 Which material is best for the core of an electric wire? (a) wood (b) glass (c) copper (d) rubber
  21. 21.🧱 Which material is best for a raincoat? (a) paper (b) plastic-coated cloth (c) cardboard (d) cotton wool
  22. 22.Which of these needs a waterproof material? (a) a raincoat (b) a hair band (c) a yoga mat (d) a window pane
  23. 23.Which of these needs an electrical conductor? (a) a boat hull (b) an oven glove (c) a spectacle lens (d) a switch contact
  24. 24.🧱 Which property matters most for the core of a wire? (a) electrical conductor (b) waterproof (c) heat insulator (d) flexible
  25. 25.🔍 Which is the odd one out? (a) brass (b) glass (c) dry wood (d) rubber
  26. 26.True or false: an oven glove needs a heat insulator. (a) False (b) True
  27. 27.Which of these needs a flexible material? (a) a skipping rope (b) a switch contact (c) a raincoat (d) a spectacle lens
  28. 28.🧱 Which material is best for the bars inside concrete? (a) plastic (b) rubber (c) steel (d) glass
  29. 29.True or false: a raincoat needs a waterproof material. (a) False (b) True
  30. 30.🧱 Is cotton cloth an electrical conductor or an insulator? (a) a conductor (b) an insulator
  31. 31.🧱 Which property matters most for a skipping rope? (a) heat insulator (b) flexible (c) electrical conductor (d) waterproof
  32. 32.True or false: a window pane needs a heat insulator. (a) False (b) True
  33. 33.Which of these needs a waterproof material? (a) a magnifier lens (b) the core of a wire (c) a hair band (d) an umbrella cover
  34. 34.🔍 Which is the odd one out? (a) brass (b) graphite (c) cotton cloth (d) iron
  35. 35.🔍 Which is the odd one out? (a) plastic (b) rubber (c) steel (d) cotton cloth
  36. 36.🧱 Is dry wood an electrical conductor or an insulator? (a) a conductor (b) an insulator
  37. 37.🔍 Which is the odd one out? (a) rubber (b) graphite (c) dry wood (d) plastic
  38. 38.True or false: a roof sheet needs an electrical conductor. (a) False (b) True
  39. 39.True or false: a boat hull needs an electrical conductor. (a) False (b) True
  40. 40.🧱 Which property matters most for a spectacle lens? (a) heat insulator (b) electrical conductor (c) waterproof (d) transparent

Answer key

  1. a water tank
  2. dry wood
  3. rubber
  4. a conductor
  5. a conductor
  6. a tea flask lining
  7. waterproof
  8. iron
  9. waterproof
  10. an insulator
  11. clay pottery
  12. waterproof
  13. heat insulator
  14. a roof sheet
  15. glass
  16. a hair band
  17. transparent
  18. heat insulator
  19. an insulator
  20. copper
  21. plastic-coated cloth
  22. a raincoat
  23. a switch contact
  24. electrical conductor
  25. brass
  26. True
  27. a skipping rope
  28. steel
  29. True
  30. an insulator
  31. flexible
  32. False
  33. an umbrella cover
  34. cotton cloth
  35. steel
  36. an insulator
  37. graphite
  38. False
  39. False
  40. transparent

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