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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 211 · 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 transparent material? (a) a tea flask lining (b) a hair band (c) a car windscreen (d) a boat hull
  2. 2.🧱 Is dry wood an electrical conductor or an insulator? (a) a conductor (b) an insulator
  3. 3.🧱 Which material is best for a raincoat? (a) plastic-coated cloth (b) cotton wool (c) paper (d) cardboard
  4. 4.Which of these needs a waterproof material? (a) a car windscreen (b) a hair band (c) a raincoat (d) a switch contact
  5. 5.🧱 Which property matters most for a magnifier lens? (a) electrical conductor (b) heat insulator (c) transparent (d) flexible
  6. 6.🧱 Which material is best for the core of an electric wire? (a) copper (b) glass (c) rubber (d) wood
  7. 7.🔍 Which is the odd one out? (a) clay pottery (b) cotton cloth (c) glass (d) iron
  8. 8.True or false: a boat hull needs a transparent material. (a) False (b) True
  9. 9.🔍 Which is the odd one out? (a) cotton cloth (b) glass (c) steel (d) clay pottery
  10. 10.Which of these needs an electrical conductor? (a) a car windscreen (b) a window pane (c) a switch contact (d) a raincoat
  11. 11.🔍 Which is the odd one out? (a) dry wood (b) clay pottery (c) brass (d) rubber
  12. 12.🧱 Which property matters most for a water tank? (a) transparent (b) heat insulator (c) waterproof (d) electrical conductor
  13. 13.🧱 Which property matters most for a skipping rope? (a) electrical conductor (b) flexible (c) heat insulator (d) transparent
  14. 14.🧱 Which material is best for the bars inside concrete? (a) rubber (b) glass (c) steel (d) plastic
  15. 15.🔍 Which is the odd one out? (a) brass (b) rubber (c) copper (d) iron
  16. 16.True or false: an oven glove needs a heat insulator. (a) True (b) False
  17. 17.True or false: a spectacle lens needs a flexible material. (a) False (b) True
  18. 18.🔍 Which is the odd one out? (a) cotton cloth (b) aluminium (c) steel (d) graphite
  19. 19.🧱 Which property matters most for a tea flask lining? (a) transparent (b) flexible (c) waterproof (d) heat insulator
  20. 20.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  21. 21.Which of these needs a flexible material? (a) a window pane (b) the core of a wire (c) a skipping rope (d) an umbrella cover
  22. 22.🧱 Which material is best for a cooking pot handle? (a) aluminium (b) wood or plastic (c) copper (d) iron
  23. 23.🧱 Which property matters most for a switch contact? (a) waterproof (b) flexible (c) electrical conductor (d) transparent
  24. 24.🔍 Which is the odd one out? (a) cotton cloth (b) clay pottery (c) graphite (d) glass
  25. 25.🧱 Is glass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  26. 26.Which of these needs a transparent material? (a) a car seat belt (b) a plug pin (c) a magnifier lens (d) a cooking pot handle
  27. 27.🔍 Which is the odd one out? (a) copper (b) aluminium (c) steel (d) plastic
  28. 28.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  29. 29.🧱 Which property matters most for a plug pin? (a) waterproof (b) flexible (c) heat insulator (d) electrical conductor
  30. 30.True or false: an umbrella cover needs a transparent material. (a) False (b) True
  31. 31.🧱 Which property matters most for a yoga mat? (a) flexible (b) waterproof (c) transparent (d) electrical conductor
  32. 32.🧱 Is cotton cloth an electrical conductor or an insulator? (a) an insulator (b) a conductor
  33. 33.Which of these needs a waterproof material? (a) a magnifier lens (b) a yoga mat (c) a roof sheet (d) a hair band
  34. 34.🧱 Which property matters most for a roof sheet? (a) heat insulator (b) flexible (c) waterproof (d) transparent
  35. 35.True or false: a plug pin needs an electrical conductor. (a) True (b) False
  36. 36.🧱 Which property matters most for a boat hull? (a) flexible (b) heat insulator (c) waterproof (d) electrical conductor
  37. 37.🔍 Which is the odd one out? (a) dry wood (b) aluminium (c) plastic (d) clay pottery
  38. 38.🔍 Which is the odd one out? (a) brass (b) steel (c) glass (d) aluminium
  39. 39.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
  40. 40.True or false: a tea flask lining needs a heat insulator. (a) False (b) True

Answer key

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

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