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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 443 · 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) an insulator (b) a conductor
  2. 2.True or false: a tea flask lining needs a flexible material. (a) True (b) False
  3. 3.Which of these needs a transparent material? (a) a roof sheet (b) a cooking pot handle (c) a yoga mat (d) a spectacle lens
  4. 4.🧱 Which property matters most for a switch contact? (a) heat insulator (b) waterproof (c) electrical conductor (d) flexible
  5. 5.🔍 Which is the odd one out? (a) dry wood (b) copper (c) cotton cloth (d) rubber
  6. 6.True or false: an umbrella cover needs an electrical conductor. (a) False (b) True
  7. 7.🧱 Which property matters most for an oven glove? (a) transparent (b) heat insulator (c) electrical conductor (d) flexible
  8. 8.Which of these needs an electrical conductor? (a) a roof sheet (b) a car windscreen (c) an umbrella cover (d) a plug pin
  9. 9.🧱 Which property matters most for a yoga mat? (a) heat insulator (b) waterproof (c) flexible (d) transparent
  10. 10.🔍 Which is the odd one out? (a) glass (b) steel (c) dry wood (d) rubber
  11. 11.🔍 Which is the odd one out? (a) rubber (b) aluminium (c) clay pottery (d) dry wood
  12. 12.🧱 Is dry wood an electrical conductor or an insulator? (a) a conductor (b) an insulator
  13. 13.🧱 Which material is best for a raincoat? (a) paper (b) cardboard (c) cotton wool (d) plastic-coated cloth
  14. 14.🧱 Is brass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  15. 15.🔍 Which is the odd one out? (a) iron (b) graphite (c) dry wood (d) copper
  16. 16.True or false: a boat hull needs a flexible material. (a) False (b) True
  17. 17.True or false: a plug pin needs an electrical conductor. (a) False (b) True
  18. 18.Which of these needs an electrical conductor? (a) a water tank (b) a magnifier lens (c) a yoga mat (d) the core of a wire
  19. 19.🧱 Which property matters most for a skipping rope? (a) waterproof (b) heat insulator (c) flexible (d) electrical conductor
  20. 20.🧱 Is rubber an electrical conductor or an insulator? (a) a conductor (b) an insulator
  21. 21.True or false: a boat hull needs a waterproof material. (a) True (b) False
  22. 22.Which of these needs a waterproof material? (a) a car windscreen (b) a window pane (c) a hair band (d) a water tank
  23. 23.Which of these needs a flexible material? (a) an umbrella cover (b) a hair band (c) a water tank (d) a car windscreen
  24. 24.🧱 Which property matters most for a tea flask lining? (a) heat insulator (b) flexible (c) waterproof (d) electrical conductor
  25. 25.Which of these needs a heat insulator? (a) an umbrella cover (b) a car windscreen (c) a cooking pot handle (d) a magnifier lens
  26. 26.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
  27. 27.True or false: a skipping rope needs a heat insulator. (a) True (b) False
  28. 28.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  29. 29.True or false: a car windscreen needs a transparent material. (a) False (b) True
  30. 30.Which of these needs a heat insulator? (a) a switch contact (b) a tea flask lining (c) a car windscreen (d) a yoga mat
  31. 31.🧱 Which material is best for a window pane? (a) wood (b) brick (c) steel (d) glass
  32. 32.Which of these needs a transparent material? (a) a raincoat (b) a magnifier lens (c) a car seat belt (d) the core of a wire
  33. 33.True or false: a plug pin needs a heat insulator. (a) True (b) False
  34. 34.🔍 Which is the odd one out? (a) aluminium (b) brass (c) iron (d) clay pottery
  35. 35.🔍 Which is the odd one out? (a) graphite (b) steel (c) aluminium (d) glass
  36. 36.Which of these needs a waterproof material? (a) a magnifier lens (b) an oven glove (c) a roof sheet (d) a cooking pot handle
  37. 37.🧱 Which property matters most for a cooking pot handle? (a) heat insulator (b) flexible (c) transparent (d) electrical conductor
  38. 38.Which of these needs a heat insulator? (a) a raincoat (b) a magnifier lens (c) an oven glove (d) a water tank
  39. 39.True or false: a plug pin needs a flexible material. (a) True (b) False
  40. 40.🧱 Which property matters most for a car windscreen? (a) waterproof (b) electrical conductor (c) transparent (d) flexible

Answer key

  1. a conductor
  2. False
  3. a spectacle lens
  4. electrical conductor
  5. copper
  6. False
  7. heat insulator
  8. a plug pin
  9. flexible
  10. steel
  11. aluminium
  12. an insulator
  13. plastic-coated cloth
  14. a conductor
  15. dry wood
  16. False
  17. True
  18. the core of a wire
  19. flexible
  20. an insulator
  21. True
  22. a water tank
  23. a hair band
  24. heat insulator
  25. a cooking pot handle
  26. a conductor
  27. False
  28. a conductor
  29. True
  30. a tea flask lining
  31. glass
  32. a magnifier lens
  33. False
  34. clay pottery
  35. glass
  36. a roof sheet
  37. heat insulator
  38. an oven glove
  39. False
  40. transparent

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