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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 250 · 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 is the odd one out? (a) cotton cloth (b) copper (c) aluminium (d) graphite
  2. 2.🧱 Which material is best for a cooking pot handle? (a) aluminium (b) wood or plastic (c) iron (d) copper
  3. 3.🧱 Is graphite an electrical conductor or an insulator? (a) an insulator (b) a conductor
  4. 4.True or false: a tea flask lining needs a flexible material. (a) False (b) True
  5. 5.Which of these needs a heat insulator? (a) a skipping rope (b) a hair band (c) a window pane (d) a tea flask lining
  6. 6.🧱 Is plastic an electrical conductor or an insulator? (a) an insulator (b) a conductor
  7. 7.Which of these needs a flexible material? (a) an oven glove (b) an umbrella cover (c) a skipping rope (d) a car windscreen
  8. 8.Which of these needs a flexible material? (a) a roof sheet (b) a hair band (c) a car windscreen (d) a magnifier lens
  9. 9.🔍 Which is the odd one out? (a) rubber (b) brass (c) copper (d) steel
  10. 10.🔍 Which is the odd one out? (a) plastic (b) clay pottery (c) copper (d) glass
  11. 11.🧱 Which material is best for the core of an electric wire? (a) wood (b) glass (c) copper (d) rubber
  12. 12.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  13. 13.True or false: a raincoat needs a flexible material. (a) False (b) True
  14. 14.🔍 Which is the odd one out? (a) cotton cloth (b) dry wood (c) clay pottery (d) brass
  15. 15.🧱 Is rubber an electrical conductor or an insulator? (a) an insulator (b) a conductor
  16. 16.🔍 Which is the odd one out? (a) glass (b) clay pottery (c) steel (d) cotton cloth
  17. 17.True or false: an umbrella cover needs a transparent material. (a) False (b) True
  18. 18.True or false: a skipping rope needs a flexible material. (a) False (b) True
  19. 19.True or false: a switch contact needs a flexible material. (a) True (b) False
  20. 20.True or false: a tea flask lining needs a heat insulator. (a) False (b) True
  21. 21.🔍 Which is the odd one out? (a) steel (b) dry wood (c) copper (d) graphite
  22. 22.True or false: a hair band needs a flexible material. (a) False (b) True
  23. 23.Which of these needs a waterproof material? (a) an oven glove (b) a roof sheet (c) a hair band (d) a car windscreen
  24. 24.🧱 Which property matters most for a spectacle lens? (a) waterproof (b) heat insulator (c) transparent (d) electrical conductor
  25. 25.🔍 Which is the odd one out? (a) aluminium (b) glass (c) brass (d) steel
  26. 26.🧱 Is aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
  27. 27.🧱 Which property matters most for a skipping rope? (a) heat insulator (b) flexible (c) transparent (d) waterproof
  28. 28.🧱 Which property matters most for a plug pin? (a) flexible (b) waterproof (c) electrical conductor (d) transparent
  29. 29.🧱 Is steel an electrical conductor or an insulator? (a) a conductor (b) an insulator
  30. 30.Which of these needs a transparent material? (a) a roof sheet (b) a plug pin (c) a switch contact (d) a car windscreen
  31. 31.🧱 Which property matters most for an umbrella cover? (a) waterproof (b) flexible (c) heat insulator (d) transparent
  32. 32.🧱 Which property matters most for the core of a wire? (a) heat insulator (b) electrical conductor (c) transparent (d) waterproof
  33. 33.🧱 Which property matters most for a hair band? (a) flexible (b) electrical conductor (c) heat insulator (d) transparent
  34. 34.🧱 Is dry wood an electrical conductor or an insulator? (a) an insulator (b) a conductor
  35. 35.🧱 Which material is best for the bars inside concrete? (a) steel (b) rubber (c) plastic (d) glass
  36. 36.🧱 Which material is best for a raincoat? (a) plastic-coated cloth (b) paper (c) cardboard (d) cotton wool
  37. 37.🧱 Which property matters most for a cooking pot handle? (a) heat insulator (b) transparent (c) waterproof (d) flexible
  38. 38.🧱 Is iron an electrical conductor or an insulator? (a) a conductor (b) an insulator
  39. 39.Which of these needs a waterproof material? (a) a car seat belt (b) the core of a wire (c) a plug pin (d) a water tank
  40. 40.Which of these needs a heat insulator? (a) a skipping rope (b) a cooking pot handle (c) a yoga mat (d) a switch contact

Answer key

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

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