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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 58 · 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 an electrical conductor? (a) a raincoat (b) a cooking pot handle (c) a plug pin (d) an oven glove
  2. 2.🧱 Which material is best for the core of an electric wire? (a) wood (b) rubber (c) copper (d) glass
  3. 3.🔍 Which is the odd one out? (a) iron (b) aluminium (c) rubber (d) steel
  4. 4.🧱 Which property matters most for the core of a wire? (a) heat insulator (b) transparent (c) electrical conductor (d) waterproof
  5. 5.🔍 Which is the odd one out? (a) brass (b) glass (c) iron (d) copper
  6. 6.🔍 Which is the odd one out? (a) copper (b) plastic (c) iron (d) brass
  7. 7.🧱 Which property matters most for a yoga mat? (a) flexible (b) waterproof (c) transparent (d) heat insulator
  8. 8.🧱 Which property matters most for a plug pin? (a) electrical conductor (b) flexible (c) waterproof (d) heat insulator
  9. 9.True or false: a skipping rope needs a flexible material. (a) False (b) True
  10. 10.🧱 Which material is best for a cooking pot handle? (a) aluminium (b) wood or plastic (c) iron (d) copper
  11. 11.Which of these needs a waterproof material? (a) a magnifier lens (b) a water tank (c) a hair band (d) the core of a wire
  12. 12.🧱 Is rubber an electrical conductor or an insulator? (a) an insulator (b) a conductor
  13. 13.True or false: a cooking pot handle needs an electrical conductor. (a) True (b) False
  14. 14.🧱 Which material is best for a raincoat? (a) plastic-coated cloth (b) cotton wool (c) cardboard (d) paper
  15. 15.True or false: a raincoat needs a waterproof material. (a) False (b) True
  16. 16.True or false: a roof sheet needs a heat insulator. (a) True (b) False
  17. 17.Which of these needs a heat insulator? (a) a tea flask lining (b) the core of a wire (c) a boat hull (d) a car windscreen
  18. 18.🧱 Which property matters most for a raincoat? (a) waterproof (b) transparent (c) electrical conductor (d) heat insulator
  19. 19.🧱 Which property matters most for a spectacle lens? (a) flexible (b) transparent (c) heat insulator (d) waterproof
  20. 20.🧱 Which material is best for a window pane? (a) brick (b) glass (c) wood (d) steel
  21. 21.🧱 Which property matters most for a switch contact? (a) flexible (b) electrical conductor (c) heat insulator (d) waterproof
  22. 22.Which of these needs a transparent material? (a) an umbrella cover (b) a car seat belt (c) a window pane (d) a roof sheet
  23. 23.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  24. 24.🧱 Which property matters most for a hair band? (a) waterproof (b) flexible (c) heat insulator (d) electrical conductor
  25. 25.🧱 Is aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
  26. 26.🧱 Which material is best for the bars inside concrete? (a) plastic (b) glass (c) steel (d) rubber
  27. 27.🧱 Is graphite an electrical conductor or an insulator? (a) an insulator (b) a conductor
  28. 28.Which of these needs a flexible material? (a) a raincoat (b) a car seat belt (c) a tea flask lining (d) a cooking pot handle
  29. 29.Which of these needs a flexible material? (a) an umbrella cover (b) a magnifier lens (c) a skipping rope (d) a window pane
  30. 30.🧱 Is cotton cloth an electrical conductor or an insulator? (a) a conductor (b) an insulator
  31. 31.Which of these needs a flexible material? (a) an umbrella cover (b) a hair band (c) a car windscreen (d) the core of a wire
  32. 32.🧱 Which property matters most for a car windscreen? (a) heat insulator (b) waterproof (c) transparent (d) flexible
  33. 33.🧱 Which property matters most for a skipping rope? (a) waterproof (b) transparent (c) flexible (d) electrical conductor
  34. 34.🔍 Which is the odd one out? (a) copper (b) dry wood (c) clay pottery (d) cotton cloth
  35. 35.Which of these needs a waterproof material? (a) a switch contact (b) a yoga mat (c) an umbrella cover (d) a magnifier lens
  36. 36.True or false: a spectacle lens needs a heat insulator. (a) True (b) False
  37. 37.Which of these needs an electrical conductor? (a) a spectacle lens (b) the core of a wire (c) a hair band (d) a car seat belt
  38. 38.True or false: a spectacle lens needs a transparent material. (a) False (b) True
  39. 39.True or false: an umbrella cover needs a waterproof material. (a) True (b) False
  40. 40.Which of these needs a heat insulator? (a) a magnifier lens (b) an oven glove (c) a hair band (d) a boat hull

Answer key

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

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