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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 214 · 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 property matters most for a cooking pot handle? (a) flexible (b) electrical conductor (c) waterproof (d) heat insulator
  2. 2.🧱 Is graphite an electrical conductor or an insulator? (a) a conductor (b) an insulator
  3. 3.🔍 Which is the odd one out? (a) glass (b) brass (c) plastic (d) clay pottery
  4. 4.🧱 Is glass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  5. 5.🔍 Which is the odd one out? (a) copper (b) plastic (c) steel (d) iron
  6. 6.🧱 Which material is best for the bars inside concrete? (a) rubber (b) glass (c) steel (d) plastic
  7. 7.🧱 Which material is best for a raincoat? (a) cardboard (b) paper (c) plastic-coated cloth (d) cotton wool
  8. 8.Which of these needs a transparent material? (a) a skipping rope (b) a window pane (c) a plug pin (d) an umbrella cover
  9. 9.🔍 Which is the odd one out? (a) brass (b) graphite (c) cotton cloth (d) iron
  10. 10.Which of these needs a flexible material? (a) the core of a wire (b) a spectacle lens (c) a plug pin (d) a skipping rope
  11. 11.Which of these needs a waterproof material? (a) a switch contact (b) a skipping rope (c) a plug pin (d) a roof sheet
  12. 12.🧱 Which property matters most for the core of a wire? (a) waterproof (b) heat insulator (c) flexible (d) electrical conductor
  13. 13.True or false: a raincoat needs a waterproof material. (a) False (b) True
  14. 14.🔍 Which is the odd one out? (a) dry wood (b) clay pottery (c) rubber (d) copper
  15. 15.🧱 Is cotton cloth an electrical conductor or an insulator? (a) a conductor (b) an insulator
  16. 16.🔍 Which is the odd one out? (a) aluminium (b) glass (c) steel (d) brass
  17. 17.🧱 Which property matters most for a raincoat? (a) transparent (b) heat insulator (c) waterproof (d) flexible
  18. 18.🧱 Which property matters most for a magnifier lens? (a) electrical conductor (b) transparent (c) flexible (d) waterproof
  19. 19.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  20. 20.True or false: a yoga mat needs a heat insulator. (a) True (b) False
  21. 21.🧱 Which property matters most for a spectacle lens? (a) transparent (b) flexible (c) heat insulator (d) waterproof
  22. 22.🔍 Which is the odd one out? (a) iron (b) graphite (c) rubber (d) aluminium
  23. 23.🧱 Is iron an electrical conductor or an insulator? (a) a conductor (b) an insulator
  24. 24.🔍 Which is the odd one out? (a) graphite (b) plastic (c) clay pottery (d) glass
  25. 25.🧱 Which property matters most for an umbrella cover? (a) waterproof (b) flexible (c) heat insulator (d) electrical conductor
  26. 26.Which of these needs an electrical conductor? (a) a hair band (b) an umbrella cover (c) a raincoat (d) the core of a wire
  27. 27.🧱 Which material is best for a window pane? (a) wood (b) glass (c) steel (d) brick
  28. 28.🧱 Which property matters most for a hair band? (a) waterproof (b) heat insulator (c) electrical conductor (d) flexible
  29. 29.🧱 Which material is best for a cooking pot handle? (a) aluminium (b) iron (c) copper (d) wood or plastic
  30. 30.🔍 Which is the odd one out? (a) clay pottery (b) dry wood (c) aluminium (d) glass
  31. 31.🧱 Is clay pottery an electrical conductor or an insulator? (a) an insulator (b) a conductor
  32. 32.Which of these needs a waterproof material? (a) a water tank (b) a hair band (c) a skipping rope (d) a magnifier lens
  33. 33.True or false: a plug pin needs a heat insulator. (a) True (b) False
  34. 34.Which of these needs a flexible material? (a) a magnifier lens (b) a car windscreen (c) a yoga mat (d) a water tank
  35. 35.Which of these needs a heat insulator? (a) a car seat belt (b) a water tank (c) a magnifier lens (d) a tea flask lining
  36. 36.Which of these needs a transparent material? (a) a roof sheet (b) a spectacle lens (c) a cooking pot handle (d) an umbrella cover
  37. 37.Which of these needs an electrical conductor? (a) a water tank (b) a hair band (c) a switch contact (d) a spectacle lens
  38. 38.True or false: a switch contact needs a flexible material. (a) False (b) True
  39. 39.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
  40. 40.🔍 Which is the odd one out? (a) clay pottery (b) copper (c) steel (d) aluminium

Answer key

  1. heat insulator
  2. a conductor
  3. brass
  4. an insulator
  5. plastic
  6. steel
  7. plastic-coated cloth
  8. a window pane
  9. cotton cloth
  10. a skipping rope
  11. a roof sheet
  12. electrical conductor
  13. True
  14. copper
  15. an insulator
  16. glass
  17. waterproof
  18. transparent
  19. a conductor
  20. False
  21. transparent
  22. rubber
  23. a conductor
  24. graphite
  25. waterproof
  26. the core of a wire
  27. glass
  28. flexible
  29. wood or plastic
  30. aluminium
  31. an insulator
  32. a water tank
  33. False
  34. a yoga mat
  35. a tea flask lining
  36. a spectacle lens
  37. a switch contact
  38. False
  39. an insulator
  40. clay pottery

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