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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 757 · 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 of these needs a transparent material? (a) a boat hull (b) a roof sheet (c) a tea flask lining (d) a magnifier lens
  2. 2.Which of these needs an electrical conductor? (a) a boat hull (b) a spectacle lens (c) a car seat belt (d) the core of a wire
  3. 3.🔍 Which is the odd one out? (a) copper (b) plastic (c) graphite (d) brass
  4. 4.🧱 Is graphite an electrical conductor or an insulator? (a) an insulator (b) a conductor
  5. 5.True or false: a raincoat needs a transparent material. (a) False (b) True
  6. 6.True or false: a plug pin needs a flexible material. (a) False (b) True
  7. 7.True or false: the core of a wire needs a transparent material. (a) False (b) True
  8. 8.🧱 Which material is best for a window pane? (a) wood (b) steel (c) glass (d) brick
  9. 9.Which of these needs a flexible material? (a) a spectacle lens (b) a car seat belt (c) an oven glove (d) a car windscreen
  10. 10.🔍 Which is the odd one out? (a) brass (b) aluminium (c) rubber (d) graphite
  11. 11.Which of these needs an electrical conductor? (a) a switch contact (b) a window pane (c) a spectacle lens (d) a car windscreen
  12. 12.🧱 Which property matters most for a plug pin? (a) electrical conductor (b) flexible (c) transparent (d) waterproof
  13. 13.🧱 Which property matters most for a car seat belt? (a) flexible (b) electrical conductor (c) transparent (d) waterproof
  14. 14.🔍 Which is the odd one out? (a) plastic (b) glass (c) steel (d) cotton cloth
  15. 15.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  16. 16.🧱 Is dry wood an electrical conductor or an insulator? (a) an insulator (b) a conductor
  17. 17.Which of these needs a waterproof material? (a) an umbrella cover (b) a hair band (c) a plug pin (d) a skipping rope
  18. 18.🔍 Which is the odd one out? (a) plastic (b) cotton cloth (c) brass (d) clay pottery
  19. 19.True or false: a raincoat needs a waterproof material. (a) False (b) True
  20. 20.🧱 Which property matters most for a water tank? (a) flexible (b) waterproof (c) electrical conductor (d) heat insulator
  21. 21.True or false: an umbrella cover needs a waterproof material. (a) False (b) True
  22. 22.🧱 Is glass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  23. 23.🧱 Which material is best for a raincoat? (a) cotton wool (b) paper (c) cardboard (d) plastic-coated cloth
  24. 24.🧱 Which material is best for a cooking pot handle? (a) iron (b) wood or plastic (c) aluminium (d) copper
  25. 25.🔍 Which is the odd one out? (a) glass (b) plastic (c) rubber (d) aluminium
  26. 26.True or false: a boat hull needs a waterproof material. (a) False (b) True
  27. 27.🧱 Which property matters most for a skipping rope? (a) flexible (b) electrical conductor (c) transparent (d) waterproof
  28. 28.🔍 Which is the odd one out? (a) rubber (b) copper (c) cotton cloth (d) glass
  29. 29.Which of these needs a transparent material? (a) a window pane (b) a roof sheet (c) a boat hull (d) an oven glove
  30. 30.Which of these needs a waterproof material? (a) a tea flask lining (b) a car seat belt (c) a raincoat (d) a hair band
  31. 31.Which of these needs a heat insulator? (a) a boat hull (b) a spectacle lens (c) a hair band (d) an oven glove
  32. 32.True or false: a boat hull needs a flexible material. (a) False (b) True
  33. 33.🔍 Which is the odd one out? (a) steel (b) iron (c) glass (d) copper
  34. 34.🧱 Which property matters most for a spectacle lens? (a) transparent (b) flexible (c) waterproof (d) heat insulator
  35. 35.🧱 Which property matters most for a raincoat? (a) heat insulator (b) waterproof (c) electrical conductor (d) flexible
  36. 36.True or false: a spectacle lens needs an electrical conductor. (a) False (b) True
  37. 37.🧱 Which material is best for the core of an electric wire? (a) wood (b) glass (c) copper (d) rubber
  38. 38.🧱 Which property matters most for the core of a wire? (a) waterproof (b) electrical conductor (c) heat insulator (d) transparent
  39. 39.🧱 Which material is best for the bars inside concrete? (a) rubber (b) steel (c) glass (d) plastic
  40. 40.True or false: a cooking pot handle needs a heat insulator. (a) False (b) True

Answer key

  1. a magnifier lens
  2. the core of a wire
  3. plastic
  4. a conductor
  5. False
  6. False
  7. False
  8. glass
  9. a car seat belt
  10. rubber
  11. a switch contact
  12. electrical conductor
  13. flexible
  14. steel
  15. a conductor
  16. an insulator
  17. an umbrella cover
  18. brass
  19. True
  20. waterproof
  21. True
  22. an insulator
  23. plastic-coated cloth
  24. wood or plastic
  25. aluminium
  26. True
  27. flexible
  28. copper
  29. a window pane
  30. a raincoat
  31. an oven glove
  32. False
  33. glass
  34. transparent
  35. waterproof
  36. False
  37. copper
  38. electrical conductor
  39. steel
  40. True

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