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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 609 · 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 aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  2. 2.🧱 Which material is best for a raincoat? (a) plastic-coated cloth (b) cotton wool (c) cardboard (d) paper
  3. 3.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  4. 4.🔍 Which is the odd one out? (a) dry wood (b) brass (c) cotton cloth (d) clay pottery
  5. 5.True or false: a hair band needs an electrical conductor. (a) False (b) True
  6. 6.Which of these needs an electrical conductor? (a) a yoga mat (b) an oven glove (c) the core of a wire (d) a skipping rope
  7. 7.Which of these needs a waterproof material? (a) a tea flask lining (b) a spectacle lens (c) a skipping rope (d) a raincoat
  8. 8.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
  9. 9.🔍 Which is the odd one out? (a) aluminium (b) clay pottery (c) glass (d) dry wood
  10. 10.🧱 Which material is best for the core of an electric wire? (a) wood (b) glass (c) copper (d) rubber
  11. 11.🧱 Which property matters most for a roof sheet? (a) heat insulator (b) waterproof (c) flexible (d) transparent
  12. 12.🧱 Which property matters most for a yoga mat? (a) electrical conductor (b) transparent (c) flexible (d) heat insulator
  13. 13.True or false: a yoga mat needs a transparent material. (a) True (b) False
  14. 14.Which of these needs a flexible material? (a) a raincoat (b) a car windscreen (c) a skipping rope (d) an umbrella cover
  15. 15.🧱 Which property matters most for an oven glove? (a) transparent (b) heat insulator (c) waterproof (d) electrical conductor
  16. 16.🧱 Which property matters most for a spectacle lens? (a) flexible (b) transparent (c) heat insulator (d) waterproof
  17. 17.🧱 Which property matters most for an umbrella cover? (a) flexible (b) waterproof (c) transparent (d) electrical conductor
  18. 18.True or false: a plug pin needs an electrical conductor. (a) True (b) False
  19. 19.True or false: a water tank needs a waterproof material. (a) False (b) True
  20. 20.🔍 Which is the odd one out? (a) steel (b) aluminium (c) brass (d) clay pottery
  21. 21.🧱 Is rubber an electrical conductor or an insulator? (a) an insulator (b) a conductor
  22. 22.🧱 Which material is best for a window pane? (a) wood (b) brick (c) steel (d) glass
  23. 23.True or false: a window pane needs an electrical conductor. (a) False (b) True
  24. 24.True or false: a hair band needs a flexible material. (a) True (b) False
  25. 25.🧱 Which material is best for the bars inside concrete? (a) plastic (b) glass (c) steel (d) rubber
  26. 26.True or false: a roof sheet needs a waterproof material. (a) True (b) False
  27. 27.True or false: a window pane needs a transparent material. (a) False (b) True
  28. 28.🧱 Is brass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  29. 29.Which of these needs an electrical conductor? (a) an oven glove (b) a magnifier lens (c) a plug pin (d) a yoga mat
  30. 30.🧱 Is cotton cloth an electrical conductor or an insulator? (a) a conductor (b) an insulator
  31. 31.Which of these needs a transparent material? (a) the core of a wire (b) a car windscreen (c) a switch contact (d) a cooking pot handle
  32. 32.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  33. 33.🧱 Which property matters most for a skipping rope? (a) electrical conductor (b) heat insulator (c) flexible (d) transparent
  34. 34.Which of these needs a heat insulator? (a) a spectacle lens (b) an oven glove (c) a hair band (d) a switch contact
  35. 35.🔍 Which is the odd one out? (a) glass (b) plastic (c) copper (d) cotton cloth
  36. 36.🧱 Which material is best for a cooking pot handle? (a) iron (b) copper (c) aluminium (d) wood or plastic
  37. 37.🧱 Which property matters most for the core of a wire? (a) waterproof (b) electrical conductor (c) transparent (d) heat insulator
  38. 38.True or false: a skipping rope needs a waterproof material. (a) True (b) False
  39. 39.Which of these needs a flexible material? (a) an umbrella cover (b) a switch contact (c) a cooking pot handle (d) a car seat belt
  40. 40.Which of these needs a heat insulator? (a) a cooking pot handle (b) a roof sheet (c) a car seat belt (d) a boat hull

Answer key

  1. a conductor
  2. plastic-coated cloth
  3. a conductor
  4. brass
  5. False
  6. the core of a wire
  7. a raincoat
  8. a conductor
  9. aluminium
  10. copper
  11. waterproof
  12. flexible
  13. False
  14. a skipping rope
  15. heat insulator
  16. transparent
  17. waterproof
  18. True
  19. True
  20. clay pottery
  21. an insulator
  22. glass
  23. False
  24. True
  25. steel
  26. True
  27. True
  28. a conductor
  29. a plug pin
  30. an insulator
  31. a car windscreen
  32. a conductor
  33. flexible
  34. an oven glove
  35. copper
  36. wood or plastic
  37. electrical conductor
  38. False
  39. a car seat belt
  40. a cooking pot handle

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