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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 362 · 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) plastic (c) cotton cloth (d) rubber
  2. 2.Which of these needs a transparent material? (a) a skipping rope (b) a yoga mat (c) a car seat belt (d) a window pane
  3. 3.Which of these needs a transparent material? (a) an oven glove (b) a roof sheet (c) a yoga mat (d) a magnifier lens
  4. 4.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  5. 5.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  6. 6.🔍 Which is the odd one out? (a) cotton cloth (b) rubber (c) dry wood (d) aluminium
  7. 7.True or false: a yoga mat needs a flexible material. (a) True (b) False
  8. 8.🧱 Which property matters most for a cooking pot handle? (a) heat insulator (b) flexible (c) transparent (d) electrical conductor
  9. 9.🔍 Which is the odd one out? (a) plastic (b) steel (c) iron (d) copper
  10. 10.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  11. 11.🔍 Which is the odd one out? (a) iron (b) glass (c) copper (d) aluminium
  12. 12.🧱 Is cotton cloth an electrical conductor or an insulator? (a) an insulator (b) a conductor
  13. 13.🧱 Is graphite an electrical conductor or an insulator? (a) a conductor (b) an insulator
  14. 14.🧱 Which material is best for the bars inside concrete? (a) glass (b) steel (c) plastic (d) rubber
  15. 15.🔍 Which is the odd one out? (a) glass (b) cotton cloth (c) rubber (d) iron
  16. 16.Which of these needs an electrical conductor? (a) a cooking pot handle (b) a spectacle lens (c) an oven glove (d) the core of a wire
  17. 17.True or false: a boat hull needs an electrical conductor. (a) False (b) True
  18. 18.🧱 Is glass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  19. 19.True or false: a roof sheet needs an electrical conductor. (a) True (b) False
  20. 20.🔍 Which is the odd one out? (a) rubber (b) steel (c) cotton cloth (d) dry wood
  21. 21.Which of these needs a transparent material? (a) a spectacle lens (b) a tea flask lining (c) a roof sheet (d) an umbrella cover
  22. 22.🔍 Which is the odd one out? (a) brass (b) aluminium (c) dry wood (d) graphite
  23. 23.🧱 Is clay pottery an electrical conductor or an insulator? (a) an insulator (b) a conductor
  24. 24.🧱 Which material is best for a raincoat? (a) cotton wool (b) paper (c) cardboard (d) plastic-coated cloth
  25. 25.🧱 Which property matters most for an umbrella cover? (a) flexible (b) electrical conductor (c) transparent (d) waterproof
  26. 26.Which of these needs a flexible material? (a) an umbrella cover (b) a switch contact (c) a spectacle lens (d) a car seat belt
  27. 27.🔍 Which is the odd one out? (a) graphite (b) brass (c) clay pottery (d) copper
  28. 28.🔍 Which is the odd one out? (a) cotton cloth (b) steel (c) brass (d) copper
  29. 29.🧱 Which property matters most for a raincoat? (a) electrical conductor (b) heat insulator (c) waterproof (d) flexible
  30. 30.🔍 Which is the odd one out? (a) copper (b) graphite (c) rubber (d) brass
  31. 31.🧱 Which property matters most for a yoga mat? (a) waterproof (b) transparent (c) electrical conductor (d) flexible
  32. 32.True or false: a hair band needs an electrical conductor. (a) True (b) False
  33. 33.Which of these needs an electrical conductor? (a) a skipping rope (b) a tea flask lining (c) a plug pin (d) a car seat belt
  34. 34.🧱 Which material is best for the core of an electric wire? (a) copper (b) glass (c) wood (d) rubber
  35. 35.True or false: a boat hull needs a transparent material. (a) False (b) True
  36. 36.🧱 Which property matters most for a skipping rope? (a) transparent (b) electrical conductor (c) flexible (d) waterproof
  37. 37.🧱 Which material is best for a cooking pot handle? (a) aluminium (b) copper (c) iron (d) wood or plastic
  38. 38.True or false: a skipping rope needs a flexible material. (a) True (b) False
  39. 39.🧱 Which material is best for a window pane? (a) brick (b) steel (c) wood (d) glass
  40. 40.🧱 Which property matters most for a hair band? (a) transparent (b) flexible (c) electrical conductor (d) heat insulator

Answer key

  1. copper
  2. a window pane
  3. a magnifier lens
  4. a conductor
  5. a conductor
  6. aluminium
  7. True
  8. heat insulator
  9. plastic
  10. a conductor
  11. glass
  12. an insulator
  13. a conductor
  14. steel
  15. iron
  16. the core of a wire
  17. False
  18. an insulator
  19. False
  20. steel
  21. a spectacle lens
  22. dry wood
  23. an insulator
  24. plastic-coated cloth
  25. waterproof
  26. a car seat belt
  27. clay pottery
  28. cotton cloth
  29. waterproof
  30. rubber
  31. flexible
  32. False
  33. a plug pin
  34. copper
  35. False
  36. flexible
  37. wood or plastic
  38. True
  39. glass
  40. flexible

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