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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 738 · 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 rubber an electrical conductor or an insulator? (a) a conductor (b) an insulator
  2. 2.🔍 Which is the odd one out? (a) graphite (b) steel (c) copper (d) plastic
  3. 3.🧱 Which material is best for a raincoat? (a) cotton wool (b) cardboard (c) paper (d) plastic-coated cloth
  4. 4.🧱 Which property matters most for a yoga mat? (a) electrical conductor (b) waterproof (c) flexible (d) heat insulator
  5. 5.🧱 Which material is best for the bars inside concrete? (a) steel (b) rubber (c) glass (d) plastic
  6. 6.True or false: an oven glove needs a heat insulator. (a) True (b) False
  7. 7.🧱 Which property matters most for a cooking pot handle? (a) electrical conductor (b) flexible (c) heat insulator (d) waterproof
  8. 8.🔍 Which is the odd one out? (a) cotton cloth (b) graphite (c) brass (d) copper
  9. 9.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  10. 10.Which of these needs a heat insulator? (a) a yoga mat (b) a spectacle lens (c) a cooking pot handle (d) the core of a wire
  11. 11.🧱 Which property matters most for a roof sheet? (a) flexible (b) electrical conductor (c) waterproof (d) transparent
  12. 12.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  13. 13.🔍 Which is the odd one out? (a) copper (b) rubber (c) clay pottery (d) plastic
  14. 14.🔍 Which is the odd one out? (a) iron (b) plastic (c) cotton cloth (d) dry wood
  15. 15.Which of these needs a waterproof material? (a) a water tank (b) the core of a wire (c) a car seat belt (d) a magnifier lens
  16. 16.🧱 Is graphite an electrical conductor or an insulator? (a) an insulator (b) a conductor
  17. 17.🧱 Is steel an electrical conductor or an insulator? (a) a conductor (b) an insulator
  18. 18.🔍 Which is the odd one out? (a) rubber (b) aluminium (c) glass (d) dry wood
  19. 19.True or false: a car seat belt needs an electrical conductor. (a) True (b) False
  20. 20.Which of these needs a waterproof material? (a) a spectacle lens (b) a roof sheet (c) a yoga mat (d) a car windscreen
  21. 21.🧱 Which property matters most for a switch contact? (a) heat insulator (b) flexible (c) transparent (d) electrical conductor
  22. 22.Which of these needs an electrical conductor? (a) a car seat belt (b) an oven glove (c) the core of a wire (d) a yoga mat
  23. 23.🧱 Is iron an electrical conductor or an insulator? (a) a conductor (b) an insulator
  24. 24.True or false: a switch contact needs a waterproof material. (a) True (b) False
  25. 25.True or false: a car windscreen needs a transparent material. (a) False (b) True
  26. 26.Which of these needs a transparent material? (a) a hair band (b) a window pane (c) a raincoat (d) a roof sheet
  27. 27.True or false: a water tank needs a waterproof material. (a) False (b) True
  28. 28.🧱 Which property matters most for an oven glove? (a) waterproof (b) flexible (c) transparent (d) heat insulator
  29. 29.🧱 Which property matters most for a water tank? (a) electrical conductor (b) waterproof (c) transparent (d) flexible
  30. 30.True or false: a window pane needs a transparent material. (a) True (b) False
  31. 31.🧱 Which property matters most for a plug pin? (a) transparent (b) electrical conductor (c) heat insulator (d) waterproof
  32. 32.🧱 Which property matters most for a boat hull? (a) transparent (b) waterproof (c) flexible (d) electrical conductor
  33. 33.🧱 Which property matters most for a tea flask lining? (a) heat insulator (b) electrical conductor (c) transparent (d) flexible
  34. 34.🧱 Which material is best for a window pane? (a) wood (b) steel (c) brick (d) glass
  35. 35.Which of these needs a flexible material? (a) a spectacle lens (b) an umbrella cover (c) a boat hull (d) a yoga mat
  36. 36.True or false: a spectacle lens needs a transparent material. (a) True (b) False
  37. 37.🧱 Which material is best for the core of an electric wire? (a) wood (b) rubber (c) glass (d) copper
  38. 38.Which of these needs a transparent material? (a) a raincoat (b) a skipping rope (c) an umbrella cover (d) a spectacle lens
  39. 39.True or false: a boat hull needs a waterproof material. (a) False (b) True
  40. 40.Which of these needs a waterproof material? (a) a hair band (b) a yoga mat (c) an oven glove (d) a raincoat

Answer key

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

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