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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 475 · 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 heat insulator? (a) the core of a wire (b) a water tank (c) a plug pin (d) a tea flask lining
  2. 2.🧱 Which material is best for a window pane? (a) steel (b) brick (c) wood (d) glass
  3. 3.🔍 Which is the odd one out? (a) brass (b) plastic (c) copper (d) graphite
  4. 4.Which of these needs a waterproof material? (a) a car windscreen (b) a roof sheet (c) a plug pin (d) a window pane
  5. 5.🧱 Is clay pottery an electrical conductor or an insulator? (a) a conductor (b) an insulator
  6. 6.True or false: a car seat belt needs a heat insulator. (a) False (b) True
  7. 7.True or false: a roof sheet needs a heat insulator. (a) True (b) False
  8. 8.Which of these needs a transparent material? (a) a spectacle lens (b) an oven glove (c) a raincoat (d) a water tank
  9. 9.🧱 Which material is best for the core of an electric wire? (a) glass (b) rubber (c) copper (d) wood
  10. 10.🧱 Is rubber an electrical conductor or an insulator? (a) an insulator (b) a conductor
  11. 11.🧱 Which material is best for a cooking pot handle? (a) aluminium (b) copper (c) iron (d) wood or plastic
  12. 12.🧱 Which property matters most for a skipping rope? (a) transparent (b) electrical conductor (c) waterproof (d) flexible
  13. 13.🧱 Which property matters most for a plug pin? (a) electrical conductor (b) transparent (c) heat insulator (d) waterproof
  14. 14.🧱 Is iron an electrical conductor or an insulator? (a) a conductor (b) an insulator
  15. 15.Which of these needs a waterproof material? (a) a hair band (b) a car seat belt (c) a plug pin (d) a water tank
  16. 16.🧱 Which property matters most for a tea flask lining? (a) transparent (b) flexible (c) waterproof (d) heat insulator
  17. 17.True or false: a raincoat needs a flexible material. (a) False (b) True
  18. 18.🧱 Is graphite an electrical conductor or an insulator? (a) an insulator (b) a conductor
  19. 19.🔍 Which is the odd one out? (a) iron (b) glass (c) rubber (d) cotton cloth
  20. 20.True or false: a hair band needs a flexible material. (a) False (b) True
  21. 21.Which of these needs a flexible material? (a) a switch contact (b) a raincoat (c) an umbrella cover (d) a car seat belt
  22. 22.🔍 Which is the odd one out? (a) clay pottery (b) cotton cloth (c) rubber (d) brass
  23. 23.🧱 Is cotton cloth an electrical conductor or an insulator? (a) an insulator (b) a conductor
  24. 24.True or false: a boat hull needs a waterproof material. (a) False (b) True
  25. 25.🧱 Is brass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  26. 26.🧱 Which property matters most for the core of a wire? (a) heat insulator (b) flexible (c) waterproof (d) electrical conductor
  27. 27.True or false: the core of a wire needs a flexible material. (a) False (b) True
  28. 28.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  29. 29.Which of these needs a waterproof material? (a) a raincoat (b) a plug pin (c) a tea flask lining (d) a magnifier lens
  30. 30.Which of these needs an electrical conductor? (a) a tea flask lining (b) an umbrella cover (c) the core of a wire (d) a water tank
  31. 31.🧱 Which material is best for the bars inside concrete? (a) plastic (b) rubber (c) steel (d) glass
  32. 32.True or false: a magnifier lens needs a waterproof material. (a) False (b) True
  33. 33.🧱 Which material is best for a raincoat? (a) plastic-coated cloth (b) paper (c) cotton wool (d) cardboard
  34. 34.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  35. 35.Which of these needs an electrical conductor? (a) a yoga mat (b) a plug pin (c) a water tank (d) a cooking pot handle
  36. 36.🧱 Which property matters most for a hair band? (a) heat insulator (b) electrical conductor (c) transparent (d) flexible
  37. 37.🧱 Which property matters most for a spectacle lens? (a) electrical conductor (b) transparent (c) waterproof (d) heat insulator
  38. 38.True or false: a car windscreen needs a heat insulator. (a) True (b) False
  39. 39.True or false: a roof sheet needs a waterproof material. (a) True (b) False
  40. 40.🧱 Is dry wood an electrical conductor or an insulator? (a) a conductor (b) an insulator

Answer key

  1. a tea flask lining
  2. glass
  3. plastic
  4. a roof sheet
  5. an insulator
  6. False
  7. False
  8. a spectacle lens
  9. copper
  10. an insulator
  11. wood or plastic
  12. flexible
  13. electrical conductor
  14. a conductor
  15. a water tank
  16. heat insulator
  17. False
  18. a conductor
  19. iron
  20. True
  21. a car seat belt
  22. brass
  23. an insulator
  24. True
  25. a conductor
  26. electrical conductor
  27. False
  28. a conductor
  29. a raincoat
  30. the core of a wire
  31. steel
  32. False
  33. plastic-coated cloth
  34. a conductor
  35. a plug pin
  36. flexible
  37. transparent
  38. False
  39. True
  40. an insulator

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