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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 804 · 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 an electrical conductor? (a) a tea flask lining (b) a boat hull (c) a switch contact (d) a yoga mat
  2. 2.🧱 Is iron an electrical conductor or an insulator? (a) a conductor (b) an insulator
  3. 3.🧱 Which material is best for a window pane? (a) brick (b) steel (c) glass (d) wood
  4. 4.True or false: a boat hull needs a heat insulator. (a) True (b) False
  5. 5.🔍 Which is the odd one out? (a) rubber (b) plastic (c) dry wood (d) steel
  6. 6.🧱 Which property matters most for an oven glove? (a) flexible (b) transparent (c) heat insulator (d) electrical conductor
  7. 7.🧱 Which material is best for the core of an electric wire? (a) rubber (b) glass (c) wood (d) copper
  8. 8.🧱 Which material is best for a raincoat? (a) cardboard (b) cotton wool (c) paper (d) plastic-coated cloth
  9. 9.True or false: a plug pin needs an electrical conductor. (a) False (b) True
  10. 10.🧱 Is graphite an electrical conductor or an insulator? (a) an insulator (b) a conductor
  11. 11.🧱 Which property matters most for a car windscreen? (a) heat insulator (b) waterproof (c) flexible (d) transparent
  12. 12.🔍 Which is the odd one out? (a) iron (b) glass (c) rubber (d) dry wood
  13. 13.🔍 Which is the odd one out? (a) aluminium (b) rubber (c) plastic (d) clay pottery
  14. 14.🧱 Which material is best for a cooking pot handle? (a) wood or plastic (b) aluminium (c) iron (d) copper
  15. 15.🧱 Which property matters most for a skipping rope? (a) electrical conductor (b) flexible (c) waterproof (d) heat insulator
  16. 16.🔍 Which is the odd one out? (a) aluminium (b) dry wood (c) iron (d) graphite
  17. 17.True or false: a boat hull needs a transparent material. (a) True (b) False
  18. 18.🧱 Which property matters most for a magnifier lens? (a) waterproof (b) electrical conductor (c) transparent (d) heat insulator
  19. 19.🔍 Which is the odd one out? (a) dry wood (b) clay pottery (c) glass (d) graphite
  20. 20.🔍 Which is the odd one out? (a) aluminium (b) cotton cloth (c) steel (d) iron
  21. 21.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  22. 22.True or false: a raincoat needs an electrical conductor. (a) True (b) False
  23. 23.Which of these needs a flexible material? (a) an umbrella cover (b) a car windscreen (c) a skipping rope (d) an oven glove
  24. 24.Which of these needs a waterproof material? (a) a spectacle lens (b) a magnifier lens (c) a yoga mat (d) a roof sheet
  25. 25.🔍 Which is the odd one out? (a) iron (b) brass (c) rubber (d) aluminium
  26. 26.🧱 Which property matters most for a tea flask lining? (a) electrical conductor (b) flexible (c) transparent (d) heat insulator
  27. 27.🧱 Which material is best for the bars inside concrete? (a) plastic (b) glass (c) steel (d) rubber
  28. 28.Which of these needs a transparent material? (a) a skipping rope (b) a raincoat (c) a cooking pot handle (d) a car windscreen
  29. 29.🧱 Is steel an electrical conductor or an insulator? (a) a conductor (b) an insulator
  30. 30.🧱 Is rubber an electrical conductor or an insulator? (a) a conductor (b) an insulator
  31. 31.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
  32. 32.🧱 Is cotton cloth an electrical conductor or an insulator? (a) an insulator (b) a conductor
  33. 33.🧱 Which property matters most for a boat hull? (a) heat insulator (b) electrical conductor (c) waterproof (d) flexible
  34. 34.Which of these needs a heat insulator? (a) a spectacle lens (b) a water tank (c) an oven glove (d) a roof sheet
  35. 35.Which of these needs a waterproof material? (a) a spectacle lens (b) a water tank (c) a yoga mat (d) a car windscreen
  36. 36.Which of these needs a heat insulator? (a) a raincoat (b) an umbrella cover (c) a tea flask lining (d) a switch contact
  37. 37.True or false: a spectacle lens needs a transparent material. (a) False (b) True
  38. 38.Which of these needs a flexible material? (a) a water tank (b) an oven glove (c) a hair band (d) a switch contact
  39. 39.🧱 Which property matters most for a cooking pot handle? (a) waterproof (b) heat insulator (c) flexible (d) transparent
  40. 40.🔍 Which is the odd one out? (a) glass (b) steel (c) aluminium (d) iron

Answer key

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

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