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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 129 · 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 flexible material? (a) the core of a wire (b) a car windscreen (c) a skipping rope (d) a switch contact
  2. 2.🧱 Is iron an electrical conductor or an insulator? (a) a conductor (b) an insulator
  3. 3.Which of these needs a waterproof material? (a) a yoga mat (b) a tea flask lining (c) a cooking pot handle (d) a water tank
  4. 4.Which of these needs a waterproof material? (a) a skipping rope (b) a hair band (c) a raincoat (d) an oven glove
  5. 5.True or false: a plug pin needs an electrical conductor. (a) False (b) True
  6. 6.🧱 Which property matters most for a magnifier lens? (a) transparent (b) heat insulator (c) electrical conductor (d) waterproof
  7. 7.True or false: the core of a wire needs a heat insulator. (a) True (b) False
  8. 8.🧱 Which property matters most for a car windscreen? (a) waterproof (b) transparent (c) flexible (d) electrical conductor
  9. 9.🔍 Which is the odd one out? (a) iron (b) copper (c) aluminium (d) glass
  10. 10.🧱 Which property matters most for a hair band? (a) waterproof (b) electrical conductor (c) transparent (d) flexible
  11. 11.🧱 Is rubber an electrical conductor or an insulator? (a) a conductor (b) an insulator
  12. 12.Which of these needs a transparent material? (a) a car seat belt (b) the core of a wire (c) a boat hull (d) a window pane
  13. 13.🧱 Which property matters most for a yoga mat? (a) heat insulator (b) flexible (c) transparent (d) electrical conductor
  14. 14.🧱 Is brass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  15. 15.🧱 Which property matters most for an umbrella cover? (a) heat insulator (b) waterproof (c) transparent (d) flexible
  16. 16.Which of these needs an electrical conductor? (a) an oven glove (b) the core of a wire (c) a cooking pot handle (d) a hair band
  17. 17.🧱 Which property matters most for a plug pin? (a) electrical conductor (b) transparent (c) waterproof (d) heat insulator
  18. 18.Which of these needs a flexible material? (a) a window pane (b) an oven glove (c) a tea flask lining (d) a hair band
  19. 19.🧱 Is steel an electrical conductor or an insulator? (a) a conductor (b) an insulator
  20. 20.🧱 Which material is best for the bars inside concrete? (a) steel (b) plastic (c) glass (d) rubber
  21. 21.Which of these needs an electrical conductor? (a) a switch contact (b) a raincoat (c) a car windscreen (d) an umbrella cover
  22. 22.🧱 Which material is best for a cooking pot handle? (a) iron (b) copper (c) aluminium (d) wood or plastic
  23. 23.🧱 Which property matters most for a water tank? (a) waterproof (b) transparent (c) flexible (d) heat insulator
  24. 24.🔍 Which is the odd one out? (a) glass (b) clay pottery (c) steel (d) rubber
  25. 25.🔍 Which is the odd one out? (a) copper (b) brass (c) steel (d) rubber
  26. 26.True or false: a roof sheet needs a transparent material. (a) False (b) True
  27. 27.🧱 Is cotton cloth an electrical conductor or an insulator? (a) a conductor (b) an insulator
  28. 28.True or false: a raincoat needs a waterproof material. (a) False (b) True
  29. 29.🧱 Is glass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  30. 30.True or false: the core of a wire needs an electrical conductor. (a) True (b) False
  31. 31.🔍 Which is the odd one out? (a) plastic (b) steel (c) iron (d) copper
  32. 32.Which of these needs a heat insulator? (a) a cooking pot handle (b) a boat hull (c) an umbrella cover (d) a car windscreen
  33. 33.Which of these needs a transparent material? (a) an oven glove (b) a spectacle lens (c) the core of a wire (d) an umbrella cover
  34. 34.🧱 Which property matters most for an oven glove? (a) flexible (b) transparent (c) waterproof (d) heat insulator
  35. 35.True or false: the core of a wire needs a flexible material. (a) False (b) True
  36. 36.Which of these needs a heat insulator? (a) a tea flask lining (b) a car windscreen (c) a magnifier lens (d) a yoga mat
  37. 37.🧱 Which material is best for a window pane? (a) glass (b) steel (c) wood (d) brick
  38. 38.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  39. 39.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
  40. 40.🔍 Which is the odd one out? (a) copper (b) iron (c) cotton cloth (d) aluminium

Answer key

  1. a skipping rope
  2. a conductor
  3. a water tank
  4. a raincoat
  5. True
  6. transparent
  7. False
  8. transparent
  9. glass
  10. flexible
  11. an insulator
  12. a window pane
  13. flexible
  14. a conductor
  15. waterproof
  16. the core of a wire
  17. electrical conductor
  18. a hair band
  19. a conductor
  20. steel
  21. a switch contact
  22. wood or plastic
  23. waterproof
  24. steel
  25. rubber
  26. False
  27. an insulator
  28. True
  29. an insulator
  30. True
  31. plastic
  32. a cooking pot handle
  33. a spectacle lens
  34. heat insulator
  35. False
  36. a tea flask lining
  37. glass
  38. a conductor
  39. an insulator
  40. cotton cloth

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