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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 126 · 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 steel an electrical conductor or an insulator? (a) a conductor (b) an insulator
  2. 2.🧱 Is glass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  3. 3.🧱 Which property matters most for a skipping rope? (a) heat insulator (b) electrical conductor (c) transparent (d) flexible
  4. 4.🧱 Which property matters most for a boat hull? (a) heat insulator (b) electrical conductor (c) transparent (d) waterproof
  5. 5.True or false: a skipping rope needs a flexible material. (a) False (b) True
  6. 6.Which of these needs a transparent material? (a) a switch contact (b) an umbrella cover (c) a skipping rope (d) a window pane
  7. 7.True or false: a roof sheet needs a heat insulator. (a) True (b) False
  8. 8.True or false: a switch contact needs an electrical conductor. (a) False (b) True
  9. 9.🧱 Which material is best for a cooking pot handle? (a) wood or plastic (b) copper (c) iron (d) aluminium
  10. 10.🧱 Is rubber an electrical conductor or an insulator? (a) a conductor (b) an insulator
  11. 11.True or false: a cooking pot handle needs a waterproof material. (a) True (b) False
  12. 12.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
  13. 13.🧱 Which property matters most for a raincoat? (a) electrical conductor (b) heat insulator (c) flexible (d) waterproof
  14. 14.Which of these needs a transparent material? (a) a skipping rope (b) a spectacle lens (c) a yoga mat (d) a hair band
  15. 15.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  16. 16.Which of these needs a heat insulator? (a) a cooking pot handle (b) a car seat belt (c) a water tank (d) a boat hull
  17. 17.True or false: a window pane needs a waterproof material. (a) True (b) False
  18. 18.🧱 Which property matters most for a cooking pot handle? (a) flexible (b) heat insulator (c) waterproof (d) transparent
  19. 19.True or false: the core of a wire needs an electrical conductor. (a) True (b) False
  20. 20.🔍 Which is the odd one out? (a) copper (b) graphite (c) rubber (d) brass
  21. 21.Which of these needs a waterproof material? (a) a magnifier lens (b) a window pane (c) a roof sheet (d) the core of a wire
  22. 22.True or false: a water tank needs a waterproof material. (a) True (b) False
  23. 23.Which of these needs a flexible material? (a) the core of a wire (b) a tea flask lining (c) a raincoat (d) a hair band
  24. 24.True or false: a tea flask lining needs a flexible material. (a) True (b) False
  25. 25.True or false: a magnifier lens needs a heat insulator. (a) False (b) True
  26. 26.🧱 Which property matters most for a plug pin? (a) heat insulator (b) flexible (c) electrical conductor (d) waterproof
  27. 27.Which of these needs a flexible material? (a) a car seat belt (b) a car windscreen (c) a magnifier lens (d) a window pane
  28. 28.Which of these needs an electrical conductor? (a) a yoga mat (b) a roof sheet (c) a raincoat (d) the core of a wire
  29. 29.🔍 Which is the odd one out? (a) plastic (b) clay pottery (c) copper (d) dry wood
  30. 30.🔍 Which is the odd one out? (a) aluminium (b) cotton cloth (c) copper (d) iron
  31. 31.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
  32. 32.🔍 Which is the odd one out? (a) plastic (b) graphite (c) clay pottery (d) glass
  33. 33.Which of these needs a transparent material? (a) a raincoat (b) a plug pin (c) a car windscreen (d) a water tank
  34. 34.🧱 Which property matters most for a spectacle lens? (a) transparent (b) waterproof (c) heat insulator (d) electrical conductor
  35. 35.Which of these needs a waterproof material? (a) a magnifier lens (b) a raincoat (c) an oven glove (d) a hair band
  36. 36.🧱 Which material is best for a raincoat? (a) cotton wool (b) plastic-coated cloth (c) paper (d) cardboard
  37. 37.🧱 Which property matters most for a magnifier lens? (a) heat insulator (b) transparent (c) flexible (d) electrical conductor
  38. 38.🧱 Which property matters most for a water tank? (a) transparent (b) flexible (c) electrical conductor (d) waterproof
  39. 39.🧱 Is brass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  40. 40.🧱 Which material is best for the bars inside concrete? (a) glass (b) steel (c) plastic (d) rubber

Answer key

  1. a conductor
  2. an insulator
  3. flexible
  4. waterproof
  5. True
  6. a window pane
  7. False
  8. True
  9. wood or plastic
  10. an insulator
  11. False
  12. a conductor
  13. waterproof
  14. a spectacle lens
  15. a conductor
  16. a cooking pot handle
  17. False
  18. heat insulator
  19. True
  20. rubber
  21. a roof sheet
  22. True
  23. a hair band
  24. False
  25. False
  26. electrical conductor
  27. a car seat belt
  28. the core of a wire
  29. copper
  30. cotton cloth
  31. an insulator
  32. graphite
  33. a car windscreen
  34. transparent
  35. a raincoat
  36. plastic-coated cloth
  37. transparent
  38. waterproof
  39. a conductor
  40. steel

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