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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 186 · 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.🧱 Is copper an electrical conductor or an insulator? (a) a conductor (b) an insulator
  2. 2.Which of these needs an electrical conductor? (a) a boat hull (b) an oven glove (c) a tea flask lining (d) a plug pin
  3. 3.🔍 Which is the odd one out? (a) steel (b) dry wood (c) plastic (d) cotton cloth
  4. 4.🔍 Which is the odd one out? (a) copper (b) rubber (c) cotton cloth (d) clay pottery
  5. 5.Which of these needs a transparent material? (a) a hair band (b) a car windscreen (c) a boat hull (d) an umbrella cover
  6. 6.True or false: a skipping rope needs a flexible material. (a) True (b) False
  7. 7.🧱 Which material is best for the bars inside concrete? (a) plastic (b) steel (c) glass (d) rubber
  8. 8.🔍 Which is the odd one out? (a) steel (b) cotton cloth (c) copper (d) aluminium
  9. 9.True or false: a tea flask lining needs a flexible material. (a) True (b) False
  10. 10.🧱 Which material is best for the core of an electric wire? (a) copper (b) rubber (c) wood (d) glass
  11. 11.Which of these needs a flexible material? (a) the core of a wire (b) a car windscreen (c) an umbrella cover (d) a car seat belt
  12. 12.True or false: a plug pin needs an electrical conductor. (a) True (b) False
  13. 13.🧱 Is dry wood an electrical conductor or an insulator? (a) a conductor (b) an insulator
  14. 14.🧱 Is plastic an electrical conductor or an insulator? (a) an insulator (b) a conductor
  15. 15.True or false: a raincoat needs a flexible material. (a) True (b) False
  16. 16.🔍 Which is the odd one out? (a) copper (b) steel (c) brass (d) rubber
  17. 17.🧱 Which material is best for a window pane? (a) glass (b) steel (c) wood (d) brick
  18. 18.True or false: a cooking pot handle needs a transparent material. (a) True (b) False
  19. 19.Which of these needs a transparent material? (a) a car seat belt (b) a switch contact (c) a water tank (d) a spectacle lens
  20. 20.True or false: a yoga mat needs a heat insulator. (a) True (b) False
  21. 21.True or false: a switch contact needs a transparent material. (a) False (b) True
  22. 22.🧱 Which property matters most for a window pane? (a) electrical conductor (b) waterproof (c) transparent (d) heat insulator
  23. 23.Which of these needs a flexible material? (a) a water tank (b) a tea flask lining (c) a hair band (d) a cooking pot handle
  24. 24.Which of these needs a flexible material? (a) a tea flask lining (b) a spectacle lens (c) the core of a wire (d) a skipping rope
  25. 25.Which of these needs a heat insulator? (a) a boat hull (b) a skipping rope (c) a spectacle lens (d) a cooking pot handle
  26. 26.True or false: a switch contact needs a flexible material. (a) True (b) False
  27. 27.🧱 Which property matters most for a boat hull? (a) electrical conductor (b) heat insulator (c) flexible (d) waterproof
  28. 28.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  29. 29.🧱 Which property matters most for a car windscreen? (a) transparent (b) waterproof (c) heat insulator (d) electrical conductor
  30. 30.🔍 Which is the odd one out? (a) cotton cloth (b) clay pottery (c) iron (d) dry wood
  31. 31.🔍 Which is the odd one out? (a) copper (b) iron (c) aluminium (d) clay pottery
  32. 32.🧱 Which property matters most for a water tank? (a) waterproof (b) flexible (c) electrical conductor (d) heat insulator
  33. 33.🧱 Which property matters most for a switch contact? (a) transparent (b) waterproof (c) electrical conductor (d) flexible
  34. 34.🧱 Which material is best for a raincoat? (a) paper (b) plastic-coated cloth (c) cotton wool (d) cardboard
  35. 35.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  36. 36.Which of these needs an electrical conductor? (a) a tea flask lining (b) an oven glove (c) a magnifier lens (d) a switch contact
  37. 37.🔍 Which is the odd one out? (a) iron (b) brass (c) glass (d) graphite
  38. 38.🧱 Which property matters most for a skipping rope? (a) waterproof (b) electrical conductor (c) transparent (d) flexible
  39. 39.🧱 Which property matters most for a cooking pot handle? (a) flexible (b) heat insulator (c) waterproof (d) transparent
  40. 40.🧱 Which property matters most for an umbrella cover? (a) transparent (b) heat insulator (c) electrical conductor (d) waterproof

Answer key

  1. a conductor
  2. a plug pin
  3. steel
  4. copper
  5. a car windscreen
  6. True
  7. steel
  8. cotton cloth
  9. False
  10. copper
  11. a car seat belt
  12. True
  13. an insulator
  14. an insulator
  15. False
  16. rubber
  17. glass
  18. False
  19. a spectacle lens
  20. False
  21. False
  22. transparent
  23. a hair band
  24. a skipping rope
  25. a cooking pot handle
  26. False
  27. waterproof
  28. a conductor
  29. transparent
  30. iron
  31. clay pottery
  32. waterproof
  33. electrical conductor
  34. plastic-coated cloth
  35. a conductor
  36. a switch contact
  37. glass
  38. flexible
  39. heat insulator
  40. waterproof

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