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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 696 · 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 property matters most for a switch contact? (a) flexible (b) transparent (c) heat insulator (d) electrical conductor
  2. 2.🧱 Is iron an electrical conductor or an insulator? (a) a conductor (b) an insulator
  3. 3.True or false: the core of a wire needs a transparent material. (a) False (b) True
  4. 4.🧱 Which material is best for the bars inside concrete? (a) glass (b) rubber (c) plastic (d) steel
  5. 5.🔍 Which is the odd one out? (a) rubber (b) plastic (c) cotton cloth (d) steel
  6. 6.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
  7. 7.🧱 Which material is best for a cooking pot handle? (a) iron (b) wood or plastic (c) copper (d) aluminium
  8. 8.🧱 Which property matters most for a yoga mat? (a) waterproof (b) electrical conductor (c) flexible (d) heat insulator
  9. 9.True or false: a plug pin needs a flexible material. (a) False (b) True
  10. 10.True or false: a roof sheet needs a transparent material. (a) False (b) True
  11. 11.Which of these needs a flexible material? (a) a raincoat (b) an umbrella cover (c) a plug pin (d) a hair band
  12. 12.🧱 Is aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
  13. 13.🧱 Is steel an electrical conductor or an insulator? (a) a conductor (b) an insulator
  14. 14.🧱 Which property matters most for a hair band? (a) flexible (b) electrical conductor (c) transparent (d) waterproof
  15. 15.Which of these needs a heat insulator? (a) a window pane (b) a tea flask lining (c) a boat hull (d) a raincoat
  16. 16.🧱 Which property matters most for an umbrella cover? (a) flexible (b) transparent (c) waterproof (d) heat insulator
  17. 17.True or false: the core of a wire needs a waterproof material. (a) False (b) True
  18. 18.🧱 Is graphite an electrical conductor or an insulator? (a) an insulator (b) a conductor
  19. 19.True or false: a raincoat needs a waterproof material. (a) True (b) False
  20. 20.True or false: a hair band needs a waterproof material. (a) False (b) True
  21. 21.🧱 Which property matters most for a window pane? (a) heat insulator (b) transparent (c) electrical conductor (d) flexible
  22. 22.True or false: a roof sheet needs a heat insulator. (a) True (b) False
  23. 23.🔍 Which is the odd one out? (a) graphite (b) aluminium (c) clay pottery (d) steel
  24. 24.Which of these needs an electrical conductor? (a) a switch contact (b) a raincoat (c) a hair band (d) a skipping rope
  25. 25.🔍 Which is the odd one out? (a) aluminium (b) cotton cloth (c) iron (d) graphite
  26. 26.🧱 Which property matters most for a water tank? (a) transparent (b) electrical conductor (c) waterproof (d) heat insulator
  27. 27.Which of these needs a transparent material? (a) an oven glove (b) a hair band (c) a switch contact (d) a magnifier lens
  28. 28.True or false: a cooking pot handle needs a heat insulator. (a) False (b) True
  29. 29.Which of these needs a heat insulator? (a) a plug pin (b) a cooking pot handle (c) an umbrella cover (d) a window pane
  30. 30.True or false: a hair band needs a heat insulator. (a) True (b) False
  31. 31.🧱 Which property matters most for a car windscreen? (a) waterproof (b) transparent (c) electrical conductor (d) flexible
  32. 32.True or false: a tea flask lining needs a heat insulator. (a) False (b) True
  33. 33.Which of these needs a waterproof material? (a) a tea flask lining (b) a raincoat (c) an oven glove (d) a switch contact
  34. 34.Which of these needs a transparent material? (a) a car windscreen (b) an oven glove (c) an umbrella cover (d) a switch contact
  35. 35.Which of these needs a waterproof material? (a) an oven glove (b) a hair band (c) an umbrella cover (d) the core of a wire
  36. 36.Which of these needs a transparent material? (a) a yoga mat (b) a raincoat (c) a window pane (d) a roof sheet
  37. 37.🔍 Which is the odd one out? (a) plastic (b) dry wood (c) copper (d) clay pottery
  38. 38.🧱 Is dry wood an electrical conductor or an insulator? (a) an insulator (b) a conductor
  39. 39.🧱 Which property matters most for a roof sheet? (a) transparent (b) flexible (c) waterproof (d) electrical conductor
  40. 40.🧱 Which property matters most for a tea flask lining? (a) waterproof (b) transparent (c) flexible (d) heat insulator

Answer key

  1. electrical conductor
  2. a conductor
  3. False
  4. steel
  5. steel
  6. an insulator
  7. wood or plastic
  8. flexible
  9. False
  10. False
  11. a hair band
  12. a conductor
  13. a conductor
  14. flexible
  15. a tea flask lining
  16. waterproof
  17. False
  18. a conductor
  19. True
  20. False
  21. transparent
  22. False
  23. clay pottery
  24. a switch contact
  25. cotton cloth
  26. waterproof
  27. a magnifier lens
  28. True
  29. a cooking pot handle
  30. False
  31. transparent
  32. True
  33. a raincoat
  34. a car windscreen
  35. an umbrella cover
  36. a window pane
  37. copper
  38. an insulator
  39. waterproof
  40. heat insulator

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