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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 359 · 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) copper (b) steel (c) rubber (d) aluminium
  2. 2.🧱 Which property matters most for a roof sheet? (a) flexible (b) heat insulator (c) electrical conductor (d) waterproof
  3. 3.🧱 Which property matters most for a cooking pot handle? (a) heat insulator (b) waterproof (c) flexible (d) transparent
  4. 4.🧱 Is clay pottery an electrical conductor or an insulator? (a) a conductor (b) an insulator
  5. 5.Which of these needs a waterproof material? (a) a yoga mat (b) a window pane (c) a skipping rope (d) an umbrella cover
  6. 6.Which of these needs an electrical conductor? (a) a water tank (b) a yoga mat (c) a switch contact (d) a window pane
  7. 7.🧱 Which property matters most for an oven glove? (a) waterproof (b) electrical conductor (c) heat insulator (d) flexible
  8. 8.🧱 Is plastic an electrical conductor or an insulator? (a) an insulator (b) a conductor
  9. 9.🧱 Which material is best for a cooking pot handle? (a) aluminium (b) iron (c) wood or plastic (d) copper
  10. 10.🧱 Which material is best for a window pane? (a) glass (b) wood (c) brick (d) steel
  11. 11.🧱 Is rubber an electrical conductor or an insulator? (a) an insulator (b) a conductor
  12. 12.🔍 Which is the odd one out? (a) brass (b) plastic (c) glass (d) cotton cloth
  13. 13.🧱 Which property matters most for a hair band? (a) electrical conductor (b) waterproof (c) flexible (d) heat insulator
  14. 14.Which of these needs a waterproof material? (a) a tea flask lining (b) a hair band (c) a roof sheet (d) a spectacle lens
  15. 15.True or false: a tea flask lining needs a heat insulator. (a) True (b) False
  16. 16.True or false: a yoga mat needs a flexible material. (a) False (b) True
  17. 17.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
  18. 18.🔍 Which is the odd one out? (a) aluminium (b) glass (c) rubber (d) dry wood
  19. 19.True or false: the core of a wire needs a transparent material. (a) True (b) False
  20. 20.🔍 Which is the odd one out? (a) glass (b) iron (c) rubber (d) dry wood
  21. 21.🔍 Which is the odd one out? (a) cotton cloth (b) clay pottery (c) graphite (d) rubber
  22. 22.True or false: a cooking pot handle needs a heat insulator. (a) False (b) True
  23. 23.🔍 Which is the odd one out? (a) cotton cloth (b) clay pottery (c) dry wood (d) steel
  24. 24.🔍 Which is the odd one out? (a) graphite (b) clay pottery (c) iron (d) aluminium
  25. 25.🧱 Is graphite an electrical conductor or an insulator? (a) a conductor (b) an insulator
  26. 26.🧱 Is brass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  27. 27.Which of these needs a transparent material? (a) a spectacle lens (b) a plug pin (c) an umbrella cover (d) a hair band
  28. 28.🔍 Which is the odd one out? (a) iron (b) cotton cloth (c) steel (d) aluminium
  29. 29.True or false: a skipping rope needs a heat insulator. (a) False (b) True
  30. 30.🧱 Which property matters most for a window pane? (a) heat insulator (b) flexible (c) transparent (d) waterproof
  31. 31.🧱 Which property matters most for a magnifier lens? (a) electrical conductor (b) flexible (c) heat insulator (d) transparent
  32. 32.🧱 Which material is best for the bars inside concrete? (a) plastic (b) glass (c) rubber (d) steel
  33. 33.True or false: a water tank needs an electrical conductor. (a) True (b) False
  34. 34.🔍 Which is the odd one out? (a) dry wood (b) iron (c) aluminium (d) steel
  35. 35.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  36. 36.🧱 Which property matters most for a tea flask lining? (a) flexible (b) transparent (c) heat insulator (d) waterproof
  37. 37.True or false: a switch contact needs a flexible material. (a) True (b) False
  38. 38.🔍 Which is the odd one out? (a) copper (b) rubber (c) cotton cloth (d) dry wood
  39. 39.🧱 Which material is best for a raincoat? (a) cotton wool (b) cardboard (c) paper (d) plastic-coated cloth
  40. 40.🧱 Is dry wood an electrical conductor or an insulator? (a) a conductor (b) an insulator

Answer key

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

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