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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 824 · 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 material is best for the core of an electric wire? (a) wood (b) copper (c) rubber (d) glass
  2. 2.Which of these needs a flexible material? (a) a yoga mat (b) a window pane (c) the core of a wire (d) an oven glove
  3. 3.🧱 Which material is best for a raincoat? (a) paper (b) plastic-coated cloth (c) cotton wool (d) cardboard
  4. 4.🧱 Which property matters most for an oven glove? (a) transparent (b) waterproof (c) heat insulator (d) electrical conductor
  5. 5.🧱 Which property matters most for a hair band? (a) heat insulator (b) electrical conductor (c) waterproof (d) flexible
  6. 6.🧱 Which property matters most for a boat hull? (a) flexible (b) heat insulator (c) waterproof (d) electrical conductor
  7. 7.🔍 Which is the odd one out? (a) aluminium (b) steel (c) glass (d) copper
  8. 8.True or false: an umbrella cover needs an electrical conductor. (a) True (b) False
  9. 9.🧱 Which material is best for the bars inside concrete? (a) rubber (b) plastic (c) glass (d) steel
  10. 10.Which of these needs a waterproof material? (a) a hair band (b) an oven glove (c) an umbrella cover (d) a skipping rope
  11. 11.🧱 Is iron an electrical conductor or an insulator? (a) a conductor (b) an insulator
  12. 12.True or false: a cooking pot handle needs a flexible material. (a) True (b) False
  13. 13.True or false: a cooking pot handle needs an electrical conductor. (a) True (b) False
  14. 14.🧱 Which property matters most for a window pane? (a) heat insulator (b) transparent (c) waterproof (d) electrical conductor
  15. 15.Which of these needs an electrical conductor? (a) a magnifier lens (b) a switch contact (c) an oven glove (d) a boat hull
  16. 16.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
  17. 17.🧱 Is cotton cloth an electrical conductor or an insulator? (a) a conductor (b) an insulator
  18. 18.🔍 Which is the odd one out? (a) clay pottery (b) plastic (c) graphite (d) cotton cloth
  19. 19.🧱 Which property matters most for a car windscreen? (a) heat insulator (b) electrical conductor (c) flexible (d) transparent
  20. 20.🧱 Is steel an electrical conductor or an insulator? (a) a conductor (b) an insulator
  21. 21.🧱 Which material is best for a window pane? (a) brick (b) glass (c) steel (d) wood
  22. 22.🧱 Is aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
  23. 23.🧱 Which material is best for a cooking pot handle? (a) aluminium (b) wood or plastic (c) iron (d) copper
  24. 24.🧱 Is rubber an electrical conductor or an insulator? (a) an insulator (b) a conductor
  25. 25.Which of these needs a flexible material? (a) a spectacle lens (b) a tea flask lining (c) a raincoat (d) a car seat belt
  26. 26.🔍 Which is the odd one out? (a) rubber (b) cotton cloth (c) brass (d) dry wood
  27. 27.Which of these needs an electrical conductor? (a) a car seat belt (b) a plug pin (c) an oven glove (d) a hair band
  28. 28.🔍 Which is the odd one out? (a) dry wood (b) rubber (c) aluminium (d) plastic
  29. 29.True or false: a roof sheet needs an electrical conductor. (a) True (b) False
  30. 30.True or false: a skipping rope needs a flexible material. (a) False (b) True
  31. 31.🔍 Which is the odd one out? (a) graphite (b) plastic (c) copper (d) aluminium
  32. 32.🧱 Which property matters most for a car seat belt? (a) heat insulator (b) electrical conductor (c) waterproof (d) flexible
  33. 33.🧱 Which property matters most for the core of a wire? (a) electrical conductor (b) waterproof (c) flexible (d) transparent
  34. 34.🔍 Which is the odd one out? (a) brass (b) copper (c) rubber (d) graphite
  35. 35.Which of these needs a heat insulator? (a) a boat hull (b) a car windscreen (c) an oven glove (d) a spectacle lens
  36. 36.🔍 Which is the odd one out? (a) steel (b) cotton cloth (c) dry wood (d) plastic
  37. 37.True or false: a hair band needs a flexible material. (a) False (b) True
  38. 38.True or false: a boat hull needs a waterproof material. (a) True (b) False
  39. 39.🧱 Which property matters most for a cooking pot handle? (a) flexible (b) transparent (c) electrical conductor (d) heat insulator
  40. 40.True or false: the core of a wire needs an electrical conductor. (a) True (b) False

Answer key

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

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