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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 921 · 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) an insulator (b) a conductor
  2. 2.🧱 Which property matters most for an umbrella cover? (a) flexible (b) transparent (c) waterproof (d) heat insulator
  3. 3.🧱 Which material is best for the core of an electric wire? (a) glass (b) copper (c) wood (d) rubber
  4. 4.Which of these needs a waterproof material? (a) a skipping rope (b) a spectacle lens (c) a magnifier lens (d) a raincoat
  5. 5.Which of these needs an electrical conductor? (a) a skipping rope (b) a roof sheet (c) a car windscreen (d) a switch contact
  6. 6.🔍 Which is the odd one out? (a) clay pottery (b) rubber (c) plastic (d) aluminium
  7. 7.🧱 Which material is best for a raincoat? (a) cotton wool (b) plastic-coated cloth (c) paper (d) cardboard
  8. 8.True or false: a window pane needs a transparent material. (a) False (b) True
  9. 9.🔍 Which is the odd one out? (a) plastic (b) cotton cloth (c) clay pottery (d) graphite
  10. 10.🧱 Which material is best for the bars inside concrete? (a) plastic (b) rubber (c) steel (d) glass
  11. 11.🧱 Is copper an electrical conductor or an insulator? (a) a conductor (b) an insulator
  12. 12.🧱 Which property matters most for a magnifier lens? (a) waterproof (b) heat insulator (c) transparent (d) flexible
  13. 13.🧱 Is plastic an electrical conductor or an insulator? (a) an insulator (b) a conductor
  14. 14.🧱 Which property matters most for a spectacle lens? (a) waterproof (b) transparent (c) heat insulator (d) electrical conductor
  15. 15.🧱 Which material is best for a window pane? (a) steel (b) brick (c) glass (d) wood
  16. 16.🧱 Which property matters most for a car seat belt? (a) waterproof (b) electrical conductor (c) flexible (d) transparent
  17. 17.Which of these needs a transparent material? (a) a car windscreen (b) a roof sheet (c) a skipping rope (d) a water tank
  18. 18.🧱 Which property matters most for a window pane? (a) transparent (b) heat insulator (c) waterproof (d) flexible
  19. 19.🧱 Which property matters most for the core of a wire? (a) waterproof (b) transparent (c) electrical conductor (d) heat insulator
  20. 20.🔍 Which is the odd one out? (a) iron (b) dry wood (c) copper (d) brass
  21. 21.Which of these needs a flexible material? (a) a tea flask lining (b) a skipping rope (c) a plug pin (d) a car windscreen
  22. 22.True or false: a magnifier lens needs a flexible material. (a) True (b) False
  23. 23.Which of these needs a heat insulator? (a) an oven glove (b) a plug pin (c) a car windscreen (d) a yoga mat
  24. 24.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  25. 25.Which of these needs a flexible material? (a) a yoga mat (b) a plug pin (c) a raincoat (d) a switch contact
  26. 26.🔍 Which is the odd one out? (a) plastic (b) cotton cloth (c) steel (d) rubber
  27. 27.🔍 Which is the odd one out? (a) dry wood (b) plastic (c) brass (d) clay pottery
  28. 28.🔍 Which is the odd one out? (a) copper (b) aluminium (c) cotton cloth (d) brass
  29. 29.Which of these needs a transparent material? (a) a spectacle lens (b) an oven glove (c) a raincoat (d) a switch contact
  30. 30.Which of these needs a waterproof material? (a) a roof sheet (b) a skipping rope (c) a spectacle lens (d) a yoga mat
  31. 31.🧱 Which property matters most for a tea flask lining? (a) heat insulator (b) electrical conductor (c) waterproof (d) flexible
  32. 32.True or false: a cooking pot handle needs a heat insulator. (a) True (b) False
  33. 33.True or false: a switch contact needs a transparent material. (a) False (b) True
  34. 34.🧱 Is dry wood an electrical conductor or an insulator? (a) a conductor (b) an insulator
  35. 35.True or false: a raincoat needs a flexible material. (a) False (b) True
  36. 36.🧱 Which property matters most for a car windscreen? (a) electrical conductor (b) flexible (c) transparent (d) heat insulator
  37. 37.True or false: a roof sheet needs an electrical conductor. (a) False (b) True
  38. 38.🧱 Is glass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  39. 39.🧱 Which property matters most for a plug pin? (a) heat insulator (b) electrical conductor (c) transparent (d) flexible
  40. 40.🔍 Which is the odd one out? (a) steel (b) graphite (c) plastic (d) copper

Answer key

  1. an insulator
  2. waterproof
  3. copper
  4. a raincoat
  5. a switch contact
  6. aluminium
  7. plastic-coated cloth
  8. True
  9. graphite
  10. steel
  11. a conductor
  12. transparent
  13. an insulator
  14. transparent
  15. glass
  16. flexible
  17. a car windscreen
  18. transparent
  19. electrical conductor
  20. dry wood
  21. a skipping rope
  22. False
  23. an oven glove
  24. a conductor
  25. a yoga mat
  26. steel
  27. brass
  28. cotton cloth
  29. a spectacle lens
  30. a roof sheet
  31. heat insulator
  32. True
  33. False
  34. an insulator
  35. False
  36. transparent
  37. False
  38. an insulator
  39. electrical conductor
  40. plastic

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