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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 526 · 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 an umbrella cover? (a) transparent (b) waterproof (c) flexible (d) electrical conductor
  2. 2.🧱 Which property matters most for a car windscreen? (a) heat insulator (b) waterproof (c) transparent (d) electrical conductor
  3. 3.🧱 Which property matters most for an oven glove? (a) waterproof (b) heat insulator (c) flexible (d) transparent
  4. 4.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
  5. 5.🧱 Which property matters most for a skipping rope? (a) electrical conductor (b) heat insulator (c) waterproof (d) flexible
  6. 6.🧱 Which property matters most for a water tank? (a) electrical conductor (b) transparent (c) flexible (d) waterproof
  7. 7.🧱 Which property matters most for a switch contact? (a) transparent (b) flexible (c) electrical conductor (d) heat insulator
  8. 8.🧱 Is graphite an electrical conductor or an insulator? (a) an insulator (b) a conductor
  9. 9.🧱 Which property matters most for a spectacle lens? (a) transparent (b) waterproof (c) flexible (d) electrical conductor
  10. 10.Which of these needs a heat insulator? (a) an oven glove (b) a magnifier lens (c) a hair band (d) a roof sheet
  11. 11.True or false: a switch contact needs a flexible material. (a) True (b) False
  12. 12.🧱 Is cotton cloth an electrical conductor or an insulator? (a) a conductor (b) an insulator
  13. 13.True or false: an oven glove needs an electrical conductor. (a) False (b) True
  14. 14.True or false: a magnifier lens needs a transparent material. (a) True (b) False
  15. 15.🧱 Which material is best for the core of an electric wire? (a) rubber (b) copper (c) wood (d) glass
  16. 16.🧱 Which material is best for the bars inside concrete? (a) plastic (b) steel (c) glass (d) rubber
  17. 17.Which of these needs a waterproof material? (a) a car windscreen (b) a skipping rope (c) a water tank (d) a window pane
  18. 18.🧱 Is glass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  19. 19.🧱 Is brass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  20. 20.🧱 Which material is best for a raincoat? (a) paper (b) cardboard (c) cotton wool (d) plastic-coated cloth
  21. 21.🧱 Is dry wood an electrical conductor or an insulator? (a) an insulator (b) a conductor
  22. 22.True or false: a window pane needs a heat insulator. (a) False (b) True
  23. 23.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
  24. 24.Which of these needs a transparent material? (a) a tea flask lining (b) the core of a wire (c) a magnifier lens (d) a hair band
  25. 25.🧱 Is aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
  26. 26.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  27. 27.🧱 Which property matters most for a magnifier lens? (a) heat insulator (b) electrical conductor (c) transparent (d) flexible
  28. 28.True or false: a tea flask lining needs a heat insulator. (a) False (b) True
  29. 29.🔍 Which is the odd one out? (a) aluminium (b) plastic (c) cotton cloth (d) dry wood
  30. 30.True or false: a roof sheet needs a waterproof material. (a) True (b) False
  31. 31.🧱 Which property matters most for a roof sheet? (a) heat insulator (b) transparent (c) electrical conductor (d) waterproof
  32. 32.Which of these needs a flexible material? (a) a skipping rope (b) a water tank (c) a magnifier lens (d) a plug pin
  33. 33.🧱 Which property matters most for a tea flask lining? (a) heat insulator (b) waterproof (c) flexible (d) transparent
  34. 34.🔍 Which is the odd one out? (a) rubber (b) iron (c) graphite (d) aluminium
  35. 35.🔍 Which is the odd one out? (a) glass (b) cotton cloth (c) plastic (d) iron
  36. 36.True or false: a window pane needs a transparent material. (a) False (b) True
  37. 37.🔍 Which is the odd one out? (a) copper (b) graphite (c) aluminium (d) dry wood
  38. 38.Which of these needs a flexible material? (a) an umbrella cover (b) a water tank (c) a boat hull (d) a yoga mat
  39. 39.True or false: a window pane needs an electrical conductor. (a) False (b) True
  40. 40.Which of these needs a heat insulator? (a) a car seat belt (b) a boat hull (c) a cooking pot handle (d) a hair band

Answer key

  1. waterproof
  2. transparent
  3. heat insulator
  4. a conductor
  5. flexible
  6. waterproof
  7. electrical conductor
  8. a conductor
  9. transparent
  10. an oven glove
  11. False
  12. an insulator
  13. False
  14. True
  15. copper
  16. steel
  17. a water tank
  18. an insulator
  19. a conductor
  20. plastic-coated cloth
  21. an insulator
  22. False
  23. an insulator
  24. a magnifier lens
  25. a conductor
  26. a conductor
  27. transparent
  28. True
  29. aluminium
  30. True
  31. waterproof
  32. a skipping rope
  33. heat insulator
  34. rubber
  35. iron
  36. True
  37. dry wood
  38. a yoga mat
  39. False
  40. a cooking pot handle

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