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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 771 · 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 aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
  2. 2.Which of these needs a waterproof material? (a) a raincoat (b) a hair band (c) a magnifier lens (d) a yoga mat
  3. 3.🧱 Which property matters most for an oven glove? (a) heat insulator (b) transparent (c) electrical conductor (d) flexible
  4. 4.True or false: a tea flask lining needs a transparent material. (a) True (b) False
  5. 5.🧱 Is brass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  6. 6.🔍 Which is the odd one out? (a) copper (b) clay pottery (c) graphite (d) steel
  7. 7.True or false: a roof sheet needs a transparent material. (a) False (b) True
  8. 8.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  9. 9.🧱 Which property matters most for a hair band? (a) flexible (b) heat insulator (c) waterproof (d) transparent
  10. 10.True or false: an umbrella cover needs a heat insulator. (a) False (b) True
  11. 11.🔍 Which is the odd one out? (a) steel (b) iron (c) copper (d) plastic
  12. 12.🧱 Which property matters most for a skipping rope? (a) waterproof (b) flexible (c) transparent (d) heat insulator
  13. 13.🧱 Which property matters most for a tea flask lining? (a) electrical conductor (b) waterproof (c) flexible (d) heat insulator
  14. 14.Which of these needs an electrical conductor? (a) a car seat belt (b) a raincoat (c) a boat hull (d) a switch contact
  15. 15.Which of these needs a heat insulator? (a) an umbrella cover (b) a magnifier lens (c) a tea flask lining (d) a window pane
  16. 16.🧱 Which material is best for the core of an electric wire? (a) glass (b) rubber (c) copper (d) wood
  17. 17.Which of these needs a waterproof material? (a) a switch contact (b) an umbrella cover (c) a magnifier lens (d) a hair band
  18. 18.🧱 Is cotton cloth an electrical conductor or an insulator? (a) a conductor (b) an insulator
  19. 19.🧱 Is graphite an electrical conductor or an insulator? (a) a conductor (b) an insulator
  20. 20.Which of these needs a flexible material? (a) an umbrella cover (b) a window pane (c) a hair band (d) a tea flask lining
  21. 21.True or false: the core of a wire needs an electrical conductor. (a) False (b) True
  22. 22.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  23. 23.🧱 Which material is best for a cooking pot handle? (a) copper (b) aluminium (c) wood or plastic (d) iron
  24. 24.Which of these needs a transparent material? (a) a roof sheet (b) an umbrella cover (c) a window pane (d) a skipping rope
  25. 25.🧱 Which material is best for a window pane? (a) glass (b) steel (c) brick (d) wood
  26. 26.Which of these needs a waterproof material? (a) a roof sheet (b) a car seat belt (c) a skipping rope (d) a cooking pot handle
  27. 27.🧱 Which property matters most for a cooking pot handle? (a) electrical conductor (b) heat insulator (c) transparent (d) waterproof
  28. 28.True or false: a switch contact needs a heat insulator. (a) True (b) False
  29. 29.🧱 Which property matters most for a plug pin? (a) electrical conductor (b) flexible (c) transparent (d) waterproof
  30. 30.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
  31. 31.🧱 Which property matters most for a window pane? (a) electrical conductor (b) flexible (c) waterproof (d) transparent
  32. 32.Which of these needs a transparent material? (a) the core of a wire (b) a roof sheet (c) a magnifier lens (d) a skipping rope
  33. 33.Which of these needs an electrical conductor? (a) a tea flask lining (b) a cooking pot handle (c) an oven glove (d) the core of a wire
  34. 34.🧱 Which property matters most for an umbrella cover? (a) transparent (b) heat insulator (c) waterproof (d) electrical conductor
  35. 35.🧱 Is clay pottery an electrical conductor or an insulator? (a) an insulator (b) a conductor
  36. 36.🔍 Which is the odd one out? (a) rubber (b) dry wood (c) cotton cloth (d) aluminium
  37. 37.🧱 Is glass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  38. 38.🧱 Which property matters most for a yoga mat? (a) heat insulator (b) waterproof (c) flexible (d) transparent
  39. 39.🧱 Which property matters most for a raincoat? (a) electrical conductor (b) flexible (c) transparent (d) waterproof
  40. 40.🧱 Which material is best for the bars inside concrete? (a) steel (b) rubber (c) glass (d) plastic

Answer key

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

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