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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 984 · 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 waterproof material? (a) the core of a wire (b) a window pane (c) a car windscreen (d) an umbrella cover
  2. 2.Which of these needs a flexible material? (a) a water tank (b) a cooking pot handle (c) a skipping rope (d) a boat hull
  3. 3.🧱 Which material is best for the bars inside concrete? (a) glass (b) plastic (c) rubber (d) steel
  4. 4.🧱 Is copper an electrical conductor or an insulator? (a) a conductor (b) an insulator
  5. 5.🔍 Which is the odd one out? (a) steel (b) graphite (c) copper (d) glass
  6. 6.True or false: a skipping rope needs a flexible material. (a) False (b) True
  7. 7.🧱 Is clay pottery an electrical conductor or an insulator? (a) a conductor (b) an insulator
  8. 8.🧱 Which material is best for a window pane? (a) brick (b) wood (c) glass (d) steel
  9. 9.🧱 Is rubber an electrical conductor or an insulator? (a) a conductor (b) an insulator
  10. 10.🧱 Which property matters most for a roof sheet? (a) flexible (b) transparent (c) electrical conductor (d) waterproof
  11. 11.🧱 Which material is best for a cooking pot handle? (a) aluminium (b) copper (c) wood or plastic (d) iron
  12. 12.Which of these needs a waterproof material? (a) a yoga mat (b) a car seat belt (c) a boat hull (d) a skipping rope
  13. 13.🧱 Is cotton cloth an electrical conductor or an insulator? (a) a conductor (b) an insulator
  14. 14.Which of these needs a heat insulator? (a) an oven glove (b) a roof sheet (c) a spectacle lens (d) a skipping rope
  15. 15.True or false: a plug pin needs a transparent material. (a) True (b) False
  16. 16.Which of these needs a transparent material? (a) a cooking pot handle (b) a magnifier lens (c) a water tank (d) a skipping rope
  17. 17.🧱 Is graphite an electrical conductor or an insulator? (a) an insulator (b) a conductor
  18. 18.🔍 Which is the odd one out? (a) graphite (b) steel (c) cotton cloth (d) copper
  19. 19.🧱 Is dry wood an electrical conductor or an insulator? (a) an insulator (b) a conductor
  20. 20.Which of these needs a transparent material? (a) a window pane (b) a switch contact (c) a boat hull (d) a hair band
  21. 21.Which of these needs an electrical conductor? (a) a raincoat (b) the core of a wire (c) a magnifier lens (d) a car windscreen
  22. 22.🔍 Which is the odd one out? (a) cotton cloth (b) aluminium (c) dry wood (d) clay pottery
  23. 23.🧱 Which material is best for the core of an electric wire? (a) glass (b) wood (c) rubber (d) copper
  24. 24.True or false: a roof sheet needs a waterproof material. (a) False (b) True
  25. 25.🔍 Which is the odd one out? (a) glass (b) cotton cloth (c) copper (d) plastic
  26. 26.Which of these needs an electrical conductor? (a) a raincoat (b) a hair band (c) a switch contact (d) an umbrella cover
  27. 27.🧱 Which property matters most for a yoga mat? (a) transparent (b) waterproof (c) flexible (d) heat insulator
  28. 28.True or false: a spectacle lens needs a transparent material. (a) False (b) True
  29. 29.True or false: a roof sheet needs a transparent material. (a) True (b) False
  30. 30.Which of these needs a waterproof material? (a) a tea flask lining (b) a cooking pot handle (c) a roof sheet (d) a magnifier lens
  31. 31.🧱 Is iron an electrical conductor or an insulator? (a) a conductor (b) an insulator
  32. 32.Which of these needs a flexible material? (a) a car windscreen (b) a cooking pot handle (c) a yoga mat (d) a tea flask lining
  33. 33.🧱 Is aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
  34. 34.🔍 Which is the odd one out? (a) plastic (b) glass (c) clay pottery (d) brass
  35. 35.🔍 Which is the odd one out? (a) graphite (b) steel (c) rubber (d) aluminium
  36. 36.True or false: a skipping rope needs a waterproof material. (a) False (b) True
  37. 37.🧱 Which property matters most for an oven glove? (a) transparent (b) electrical conductor (c) flexible (d) heat insulator
  38. 38.Which of these needs a transparent material? (a) a spectacle lens (b) a skipping rope (c) an umbrella cover (d) a switch contact
  39. 39.True or false: a skipping rope needs an electrical conductor. (a) False (b) True
  40. 40.🧱 Which property matters most for a hair band? (a) waterproof (b) transparent (c) electrical conductor (d) flexible

Answer key

  1. an umbrella cover
  2. a skipping rope
  3. steel
  4. a conductor
  5. glass
  6. True
  7. an insulator
  8. glass
  9. an insulator
  10. waterproof
  11. wood or plastic
  12. a boat hull
  13. an insulator
  14. an oven glove
  15. False
  16. a magnifier lens
  17. a conductor
  18. cotton cloth
  19. an insulator
  20. a window pane
  21. the core of a wire
  22. aluminium
  23. copper
  24. True
  25. copper
  26. a switch contact
  27. flexible
  28. True
  29. False
  30. a roof sheet
  31. a conductor
  32. a yoga mat
  33. a conductor
  34. brass
  35. rubber
  36. False
  37. heat insulator
  38. a spectacle lens
  39. False
  40. flexible

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