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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 305 · 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 is the odd one out? (a) aluminium (b) graphite (c) steel (d) glass
  2. 2.🧱 Is glass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  3. 3.🧱 Is copper an electrical conductor or an insulator? (a) a conductor (b) an insulator
  4. 4.Which of these needs a transparent material? (a) a skipping rope (b) an umbrella cover (c) a magnifier lens (d) the core of a wire
  5. 5.🧱 Which property matters most for a water tank? (a) waterproof (b) flexible (c) transparent (d) heat insulator
  6. 6.🔍 Which is the odd one out? (a) cotton cloth (b) clay pottery (c) iron (d) dry wood
  7. 7.True or false: a hair band needs an electrical conductor. (a) False (b) True
  8. 8.🧱 Which material is best for the core of an electric wire? (a) copper (b) rubber (c) wood (d) glass
  9. 9.🧱 Which property matters most for a tea flask lining? (a) electrical conductor (b) flexible (c) heat insulator (d) transparent
  10. 10.🧱 Is dry wood an electrical conductor or an insulator? (a) an insulator (b) a conductor
  11. 11.🧱 Which material is best for a cooking pot handle? (a) iron (b) copper (c) wood or plastic (d) aluminium
  12. 12.Which of these needs an electrical conductor? (a) a raincoat (b) an oven glove (c) a spectacle lens (d) the core of a wire
  13. 13.🧱 Which property matters most for a car windscreen? (a) transparent (b) electrical conductor (c) waterproof (d) heat insulator
  14. 14.🧱 Is cotton cloth an electrical conductor or an insulator? (a) an insulator (b) a conductor
  15. 15.True or false: a boat hull needs a transparent material. (a) False (b) True
  16. 16.True or false: a car windscreen needs a heat insulator. (a) False (b) True
  17. 17.Which of these needs a heat insulator? (a) a yoga mat (b) a skipping rope (c) a tea flask lining (d) a car windscreen
  18. 18.🧱 Which property matters most for a window pane? (a) electrical conductor (b) heat insulator (c) waterproof (d) transparent
  19. 19.Which of these needs a waterproof material? (a) a roof sheet (b) a magnifier lens (c) a spectacle lens (d) a window pane
  20. 20.🧱 Is iron an electrical conductor or an insulator? (a) a conductor (b) an insulator
  21. 21.🔍 Which is the odd one out? (a) cotton cloth (b) dry wood (c) steel (d) glass
  22. 22.True or false: a roof sheet needs an electrical conductor. (a) True (b) False
  23. 23.Which of these needs an electrical conductor? (a) a skipping rope (b) a switch contact (c) a magnifier lens (d) a cooking pot handle
  24. 24.Which of these needs a flexible material? (a) a magnifier lens (b) a boat hull (c) a hair band (d) a plug pin
  25. 25.True or false: a raincoat needs a transparent material. (a) True (b) False
  26. 26.🧱 Which property matters most for a cooking pot handle? (a) heat insulator (b) flexible (c) electrical conductor (d) transparent
  27. 27.True or false: a switch contact needs a heat insulator. (a) True (b) False
  28. 28.True or false: a spectacle lens needs a waterproof material. (a) True (b) False
  29. 29.🧱 Which material is best for a window pane? (a) brick (b) wood (c) steel (d) glass
  30. 30.True or false: a skipping rope needs an electrical conductor. (a) False (b) True
  31. 31.🔍 Which is the odd one out? (a) rubber (b) aluminium (c) iron (d) steel
  32. 32.Which of these needs a flexible material? (a) a roof sheet (b) the core of a wire (c) a magnifier lens (d) a skipping rope
  33. 33.Which of these needs a waterproof material? (a) a skipping rope (b) a raincoat (c) a yoga mat (d) a switch contact
  34. 34.🧱 Which property matters most for an umbrella cover? (a) transparent (b) flexible (c) waterproof (d) heat insulator
  35. 35.Which of these needs a heat insulator? (a) a boat hull (b) a car windscreen (c) the core of a wire (d) a cooking pot handle
  36. 36.🧱 Which property matters most for a skipping rope? (a) waterproof (b) heat insulator (c) transparent (d) flexible
  37. 37.🧱 Which property matters most for a magnifier lens? (a) transparent (b) electrical conductor (c) flexible (d) heat insulator
  38. 38.True or false: an umbrella cover needs a waterproof material. (a) False (b) True
  39. 39.Which of these needs a transparent material? (a) a car windscreen (b) an umbrella cover (c) a raincoat (d) an oven glove
  40. 40.Which of these needs a flexible material? (a) a car seat belt (b) a spectacle lens (c) a raincoat (d) a cooking pot handle

Answer key

  1. glass
  2. an insulator
  3. a conductor
  4. a magnifier lens
  5. waterproof
  6. iron
  7. False
  8. copper
  9. heat insulator
  10. an insulator
  11. wood or plastic
  12. the core of a wire
  13. transparent
  14. an insulator
  15. False
  16. False
  17. a tea flask lining
  18. transparent
  19. a roof sheet
  20. a conductor
  21. steel
  22. False
  23. a switch contact
  24. a hair band
  25. False
  26. heat insulator
  27. False
  28. False
  29. glass
  30. False
  31. rubber
  32. a skipping rope
  33. a raincoat
  34. waterproof
  35. a cooking pot handle
  36. flexible
  37. transparent
  38. True
  39. a car windscreen
  40. a car seat belt

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