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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 196 · 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 material is best for a window pane? (a) wood (b) steel (c) glass (d) brick
  2. 2.🧱 Which material is best for a cooking pot handle? (a) iron (b) aluminium (c) wood or plastic (d) copper
  3. 3.🔍 Which is the odd one out? (a) plastic (b) steel (c) cotton cloth (d) glass
  4. 4.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
  5. 5.🧱 Which property matters most for a cooking pot handle? (a) heat insulator (b) transparent (c) waterproof (d) flexible
  6. 6.🔍 Which is the odd one out? (a) aluminium (b) cotton cloth (c) rubber (d) plastic
  7. 7.🔍 Which is the odd one out? (a) brass (b) dry wood (c) copper (d) aluminium
  8. 8.🧱 Which property matters most for a window pane? (a) electrical conductor (b) waterproof (c) flexible (d) transparent
  9. 9.Which of these needs a flexible material? (a) a skipping rope (b) a boat hull (c) a water tank (d) a roof sheet
  10. 10.🧱 Which property matters most for a water tank? (a) heat insulator (b) flexible (c) waterproof (d) electrical conductor
  11. 11.True or false: a hair band needs a heat insulator. (a) False (b) True
  12. 12.🧱 Which property matters most for a spectacle lens? (a) heat insulator (b) waterproof (c) flexible (d) transparent
  13. 13.🧱 Which property matters most for a car windscreen? (a) electrical conductor (b) waterproof (c) flexible (d) transparent
  14. 14.True or false: a cooking pot handle needs a heat insulator. (a) False (b) True
  15. 15.Which of these needs a heat insulator? (a) a raincoat (b) a magnifier lens (c) a cooking pot handle (d) a skipping rope
  16. 16.True or false: a yoga mat needs a transparent material. (a) False (b) True
  17. 17.True or false: a spectacle lens needs a flexible material. (a) True (b) False
  18. 18.Which of these needs a waterproof material? (a) a cooking pot handle (b) an umbrella cover (c) a magnifier lens (d) a spectacle lens
  19. 19.True or false: a water tank needs a flexible material. (a) True (b) False
  20. 20.🧱 Which property matters most for a roof sheet? (a) electrical conductor (b) transparent (c) heat insulator (d) waterproof
  21. 21.🧱 Which material is best for the bars inside concrete? (a) plastic (b) rubber (c) steel (d) glass
  22. 22.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
  23. 23.🧱 Which property matters most for an umbrella cover? (a) heat insulator (b) electrical conductor (c) waterproof (d) transparent
  24. 24.🧱 Which material is best for a raincoat? (a) cotton wool (b) cardboard (c) plastic-coated cloth (d) paper
  25. 25.🧱 Which material is best for the core of an electric wire? (a) copper (b) wood (c) glass (d) rubber
  26. 26.True or false: a tea flask lining needs a transparent material. (a) False (b) True
  27. 27.🔍 Which is the odd one out? (a) copper (b) cotton cloth (c) clay pottery (d) plastic
  28. 28.True or false: a car seat belt needs a flexible material. (a) False (b) True
  29. 29.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  30. 30.🧱 Is rubber an electrical conductor or an insulator? (a) an insulator (b) a conductor
  31. 31.True or false: a boat hull needs a waterproof material. (a) False (b) True
  32. 32.True or false: a yoga mat needs a heat insulator. (a) False (b) True
  33. 33.🧱 Which property matters most for a yoga mat? (a) electrical conductor (b) transparent (c) waterproof (d) flexible
  34. 34.🧱 Which property matters most for a raincoat? (a) electrical conductor (b) heat insulator (c) flexible (d) waterproof
  35. 35.🧱 Which property matters most for a boat hull? (a) heat insulator (b) waterproof (c) transparent (d) electrical conductor
  36. 36.True or false: a roof sheet needs a transparent material. (a) True (b) False
  37. 37.🔍 Which is the odd one out? (a) aluminium (b) brass (c) plastic (d) graphite
  38. 38.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  39. 39.🔍 Which is the odd one out? (a) cotton cloth (b) aluminium (c) iron (d) brass
  40. 40.Which of these needs a heat insulator? (a) a hair band (b) a plug pin (c) a car seat belt (d) an oven glove

Answer key

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

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