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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 998 · 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 the core of an electric wire? (a) rubber (b) copper (c) glass (d) wood
  2. 2.True or false: the core of a wire needs an electrical conductor. (a) True (b) False
  3. 3.🔍 Which is the odd one out? (a) cotton cloth (b) glass (c) plastic (d) copper
  4. 4.🧱 Which material is best for a raincoat? (a) cotton wool (b) paper (c) plastic-coated cloth (d) cardboard
  5. 5.Which of these needs a waterproof material? (a) a hair band (b) a car windscreen (c) a boat hull (d) a skipping rope
  6. 6.True or false: a skipping rope needs a flexible material. (a) False (b) True
  7. 7.True or false: a water tank needs a waterproof material. (a) True (b) False
  8. 8.🧱 Is rubber an electrical conductor or an insulator? (a) a conductor (b) an insulator
  9. 9.🔍 Which is the odd one out? (a) graphite (b) iron (c) brass (d) cotton cloth
  10. 10.🔍 Which is the odd one out? (a) brass (b) iron (c) copper (d) dry wood
  11. 11.🧱 Which material is best for a cooking pot handle? (a) wood or plastic (b) aluminium (c) copper (d) iron
  12. 12.🧱 Which property matters most for a water tank? (a) flexible (b) waterproof (c) electrical conductor (d) heat insulator
  13. 13.🧱 Which property matters most for a yoga mat? (a) transparent (b) electrical conductor (c) flexible (d) heat insulator
  14. 14.Which of these needs a flexible material? (a) a roof sheet (b) a switch contact (c) a skipping rope (d) a boat hull
  15. 15.🧱 Which material is best for a window pane? (a) brick (b) steel (c) glass (d) wood
  16. 16.🧱 Is aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
  17. 17.🧱 Is dry wood an electrical conductor or an insulator? (a) a conductor (b) an insulator
  18. 18.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
  19. 19.🧱 Which property matters most for a raincoat? (a) heat insulator (b) electrical conductor (c) waterproof (d) flexible
  20. 20.🧱 Which property matters most for a roof sheet? (a) electrical conductor (b) transparent (c) flexible (d) waterproof
  21. 21.True or false: a yoga mat needs a flexible material. (a) False (b) True
  22. 22.True or false: an umbrella cover needs a waterproof material. (a) False (b) True
  23. 23.🧱 Which property matters most for a car windscreen? (a) electrical conductor (b) flexible (c) transparent (d) heat insulator
  24. 24.True or false: a car windscreen needs a transparent material. (a) False (b) True
  25. 25.🧱 Is clay pottery an electrical conductor or an insulator? (a) a conductor (b) an insulator
  26. 26.🧱 Which property matters most for a magnifier lens? (a) transparent (b) electrical conductor (c) heat insulator (d) waterproof
  27. 27.🧱 Which material is best for the bars inside concrete? (a) glass (b) plastic (c) rubber (d) steel
  28. 28.Which of these needs an electrical conductor? (a) a spectacle lens (b) a window pane (c) a tea flask lining (d) a plug pin
  29. 29.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
  30. 30.True or false: a spectacle lens needs a transparent material. (a) True (b) False
  31. 31.True or false: a magnifier lens needs a transparent material. (a) True (b) False
  32. 32.🧱 Which property matters most for the core of a wire? (a) flexible (b) transparent (c) electrical conductor (d) waterproof
  33. 33.🔍 Which is the odd one out? (a) cotton cloth (b) aluminium (c) clay pottery (d) rubber
  34. 34.Which of these needs a transparent material? (a) a roof sheet (b) a spectacle lens (c) a raincoat (d) an oven glove
  35. 35.Which of these needs a heat insulator? (a) a car windscreen (b) a plug pin (c) a cooking pot handle (d) the core of a wire
  36. 36.🧱 Is steel an electrical conductor or an insulator? (a) a conductor (b) an insulator
  37. 37.🔍 Which is the odd one out? (a) cotton cloth (b) brass (c) clay pottery (d) rubber
  38. 38.🔍 Which is the odd one out? (a) rubber (b) iron (c) plastic (d) cotton cloth
  39. 39.Which of these needs a waterproof material? (a) a hair band (b) a switch contact (c) a spectacle lens (d) a water tank
  40. 40.Which of these needs a heat insulator? (a) a magnifier lens (b) a window pane (c) a tea flask lining (d) a raincoat

Answer key

  1. copper
  2. True
  3. copper
  4. plastic-coated cloth
  5. a boat hull
  6. True
  7. True
  8. an insulator
  9. cotton cloth
  10. dry wood
  11. wood or plastic
  12. waterproof
  13. flexible
  14. a skipping rope
  15. glass
  16. a conductor
  17. an insulator
  18. an insulator
  19. waterproof
  20. waterproof
  21. True
  22. True
  23. transparent
  24. True
  25. an insulator
  26. transparent
  27. steel
  28. a plug pin
  29. a conductor
  30. True
  31. True
  32. electrical conductor
  33. aluminium
  34. a spectacle lens
  35. a cooking pot handle
  36. a conductor
  37. brass
  38. iron
  39. a water tank
  40. a tea flask lining

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