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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 303 · 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 glass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  2. 2.Which of these needs a transparent material? (a) a magnifier lens (b) an umbrella cover (c) a switch contact (d) a cooking pot handle
  3. 3.Which of these needs an electrical conductor? (a) an umbrella cover (b) a boat hull (c) a switch contact (d) a tea flask lining
  4. 4.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  5. 5.Which of these needs an electrical conductor? (a) a yoga mat (b) the core of a wire (c) a window pane (d) a cooking pot handle
  6. 6.🧱 Which material is best for the core of an electric wire? (a) rubber (b) copper (c) glass (d) wood
  7. 7.🔍 Which is the odd one out? (a) glass (b) plastic (c) cotton cloth (d) copper
  8. 8.🧱 Which property matters most for a car seat belt? (a) transparent (b) electrical conductor (c) flexible (d) waterproof
  9. 9.🧱 Is cotton cloth an electrical conductor or an insulator? (a) a conductor (b) an insulator
  10. 10.Which of these needs a flexible material? (a) an oven glove (b) a spectacle lens (c) a car seat belt (d) an umbrella cover
  11. 11.🔍 Which is the odd one out? (a) aluminium (b) plastic (c) brass (d) iron
  12. 12.🧱 Which property matters most for the core of a wire? (a) flexible (b) electrical conductor (c) heat insulator (d) transparent
  13. 13.🧱 Which property matters most for a skipping rope? (a) electrical conductor (b) flexible (c) waterproof (d) transparent
  14. 14.🧱 Which property matters most for an umbrella cover? (a) electrical conductor (b) waterproof (c) transparent (d) flexible
  15. 15.Which of these needs a waterproof material? (a) a tea flask lining (b) a roof sheet (c) a car seat belt (d) a cooking pot handle
  16. 16.Which of these needs a flexible material? (a) a cooking pot handle (b) a roof sheet (c) a skipping rope (d) an oven glove
  17. 17.True or false: a water tank needs a waterproof material. (a) True (b) False
  18. 18.Which of these needs a transparent material? (a) an oven glove (b) the core of a wire (c) a yoga mat (d) a spectacle lens
  19. 19.🧱 Which property matters most for a roof sheet? (a) transparent (b) flexible (c) heat insulator (d) waterproof
  20. 20.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  21. 21.🧱 Which property matters most for a plug pin? (a) heat insulator (b) transparent (c) electrical conductor (d) waterproof
  22. 22.🔍 Which is the odd one out? (a) rubber (b) plastic (c) dry wood (d) brass
  23. 23.🔍 Which is the odd one out? (a) plastic (b) rubber (c) graphite (d) clay pottery
  24. 24.True or false: a spectacle lens needs a transparent material. (a) True (b) False
  25. 25.True or false: a car windscreen needs a transparent material. (a) True (b) False
  26. 26.🧱 Is rubber an electrical conductor or an insulator? (a) a conductor (b) an insulator
  27. 27.🧱 Which property matters most for a car windscreen? (a) electrical conductor (b) transparent (c) waterproof (d) flexible
  28. 28.🧱 Which material is best for a raincoat? (a) cardboard (b) cotton wool (c) paper (d) plastic-coated cloth
  29. 29.🔍 Which is the odd one out? (a) steel (b) brass (c) clay pottery (d) graphite
  30. 30.True or false: an oven glove needs an electrical conductor. (a) False (b) True
  31. 31.🧱 Which property matters most for a boat hull? (a) flexible (b) transparent (c) electrical conductor (d) waterproof
  32. 32.🧱 Which material is best for a cooking pot handle? (a) wood or plastic (b) copper (c) iron (d) aluminium
  33. 33.🧱 Which material is best for a window pane? (a) wood (b) brick (c) glass (d) steel
  34. 34.True or false: a raincoat needs a flexible material. (a) False (b) True
  35. 35.True or false: a skipping rope needs a heat insulator. (a) False (b) True
  36. 36.🧱 Is iron an electrical conductor or an insulator? (a) a conductor (b) an insulator
  37. 37.🔍 Which is the odd one out? (a) glass (b) dry wood (c) rubber (d) steel
  38. 38.Which of these needs a heat insulator? (a) a spectacle lens (b) a boat hull (c) an umbrella cover (d) a cooking pot handle
  39. 39.🧱 Which material is best for the bars inside concrete? (a) plastic (b) glass (c) rubber (d) steel
  40. 40.Which of these needs a transparent material? (a) an oven glove (b) a switch contact (c) a boat hull (d) a window pane

Answer key

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

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