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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 690 · 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 material is best for a raincoat? (a) paper (b) cotton wool (c) cardboard (d) plastic-coated cloth
  2. 2.🧱 Is glass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  3. 3.🧱 Is clay pottery an electrical conductor or an insulator? (a) a conductor (b) an insulator
  4. 4.🧱 Which material is best for the core of an electric wire? (a) glass (b) copper (c) wood (d) rubber
  5. 5.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
  6. 6.🔍 Which is the odd one out? (a) plastic (b) iron (c) dry wood (d) rubber
  7. 7.🧱 Which material is best for the bars inside concrete? (a) glass (b) plastic (c) rubber (d) steel
  8. 8.🧱 Is rubber an electrical conductor or an insulator? (a) an insulator (b) a conductor
  9. 9.🧱 Which material is best for a cooking pot handle? (a) copper (b) iron (c) aluminium (d) wood or plastic
  10. 10.🧱 Which property matters most for an umbrella cover? (a) electrical conductor (b) flexible (c) transparent (d) waterproof
  11. 11.🧱 Which property matters most for a window pane? (a) electrical conductor (b) transparent (c) flexible (d) waterproof
  12. 12.True or false: a roof sheet needs a heat insulator. (a) True (b) False
  13. 13.🧱 Which property matters most for a boat hull? (a) flexible (b) electrical conductor (c) transparent (d) waterproof
  14. 14.🧱 Is graphite an electrical conductor or an insulator? (a) an insulator (b) a conductor
  15. 15.True or false: a skipping rope needs a flexible material. (a) True (b) False
  16. 16.🧱 Is dry wood an electrical conductor or an insulator? (a) an insulator (b) a conductor
  17. 17.🧱 Which property matters most for a raincoat? (a) heat insulator (b) waterproof (c) electrical conductor (d) flexible
  18. 18.🔍 Which is the odd one out? (a) plastic (b) brass (c) steel (d) aluminium
  19. 19.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  20. 20.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  21. 21.Which of these needs a waterproof material? (a) a roof sheet (b) a yoga mat (c) a window pane (d) a tea flask lining
  22. 22.🔍 Which is the odd one out? (a) steel (b) rubber (c) graphite (d) aluminium
  23. 23.True or false: a plug pin needs an electrical conductor. (a) False (b) True
  24. 24.🔍 Which is the odd one out? (a) cotton cloth (b) clay pottery (c) glass (d) aluminium
  25. 25.🔍 Which is the odd one out? (a) iron (b) aluminium (c) brass (d) cotton cloth
  26. 26.🧱 Which material is best for a window pane? (a) wood (b) steel (c) brick (d) glass
  27. 27.Which of these needs a flexible material? (a) a roof sheet (b) a skipping rope (c) a magnifier lens (d) an oven glove
  28. 28.🔍 Which is the odd one out? (a) graphite (b) steel (c) copper (d) clay pottery
  29. 29.🧱 Is aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
  30. 30.Which of these needs a waterproof material? (a) a raincoat (b) a car seat belt (c) a hair band (d) a tea flask lining
  31. 31.🧱 Which property matters most for an oven glove? (a) heat insulator (b) waterproof (c) electrical conductor (d) flexible
  32. 32.True or false: an umbrella cover needs a transparent material. (a) False (b) True
  33. 33.Which of these needs a flexible material? (a) a car seat belt (b) a window pane (c) a water tank (d) a boat hull
  34. 34.🧱 Which property matters most for a water tank? (a) flexible (b) electrical conductor (c) heat insulator (d) waterproof
  35. 35.Which of these needs a flexible material? (a) an oven glove (b) a cooking pot handle (c) a hair band (d) a window pane
  36. 36.True or false: a magnifier lens needs a transparent material. (a) True (b) False
  37. 37.Which of these needs a waterproof material? (a) a water tank (b) a window pane (c) a yoga mat (d) a magnifier lens
  38. 38.🧱 Which property matters most for a tea flask lining? (a) waterproof (b) heat insulator (c) flexible (d) electrical conductor
  39. 39.🧱 Which property matters most for the core of a wire? (a) transparent (b) flexible (c) electrical conductor (d) heat insulator
  40. 40.True or false: a yoga mat needs a heat insulator. (a) False (b) True

Answer key

  1. plastic-coated cloth
  2. an insulator
  3. an insulator
  4. copper
  5. a conductor
  6. iron
  7. steel
  8. an insulator
  9. wood or plastic
  10. waterproof
  11. transparent
  12. False
  13. waterproof
  14. a conductor
  15. True
  16. an insulator
  17. waterproof
  18. plastic
  19. a conductor
  20. a conductor
  21. a roof sheet
  22. rubber
  23. True
  24. aluminium
  25. cotton cloth
  26. glass
  27. a skipping rope
  28. clay pottery
  29. a conductor
  30. a raincoat
  31. heat insulator
  32. False
  33. a car seat belt
  34. waterproof
  35. a hair band
  36. True
  37. a water tank
  38. heat insulator
  39. electrical conductor
  40. False

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