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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 624 · 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 brass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  2. 2.🧱 Is copper an electrical conductor or an insulator? (a) a conductor (b) an insulator
  3. 3.Which of these needs a flexible material? (a) an oven glove (b) a spectacle lens (c) a plug pin (d) a car seat belt
  4. 4.🧱 Which material is best for the bars inside concrete? (a) rubber (b) glass (c) plastic (d) steel
  5. 5.🔍 Which is the odd one out? (a) graphite (b) glass (c) plastic (d) dry wood
  6. 6.🧱 Which material is best for a cooking pot handle? (a) copper (b) aluminium (c) wood or plastic (d) iron
  7. 7.🔍 Which is the odd one out? (a) graphite (b) cotton cloth (c) steel (d) copper
  8. 8.True or false: a switch contact needs a heat insulator. (a) True (b) False
  9. 9.🧱 Which material is best for a raincoat? (a) paper (b) cotton wool (c) cardboard (d) plastic-coated cloth
  10. 10.🧱 Is graphite an electrical conductor or an insulator? (a) a conductor (b) an insulator
  11. 11.🧱 Which material is best for the core of an electric wire? (a) copper (b) wood (c) rubber (d) glass
  12. 12.True or false: a car windscreen needs an electrical conductor. (a) True (b) False
  13. 13.🧱 Which material is best for a window pane? (a) wood (b) steel (c) glass (d) brick
  14. 14.🔍 Which is the odd one out? (a) iron (b) glass (c) steel (d) copper
  15. 15.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
  16. 16.True or false: a hair band needs a flexible material. (a) True (b) False
  17. 17.🧱 Which property matters most for an umbrella cover? (a) waterproof (b) transparent (c) electrical conductor (d) flexible
  18. 18.True or false: a tea flask lining needs a heat insulator. (a) True (b) False
  19. 19.True or false: a magnifier lens needs a waterproof material. (a) False (b) True
  20. 20.🔍 Which is the odd one out? (a) glass (b) dry wood (c) brass (d) plastic
  21. 21.🧱 Which property matters most for a tea flask lining? (a) flexible (b) waterproof (c) transparent (d) heat insulator
  22. 22.True or false: a car seat belt needs a transparent material. (a) False (b) True
  23. 23.Which of these needs a heat insulator? (a) a raincoat (b) a car windscreen (c) the core of a wire (d) an oven glove
  24. 24.Which of these needs a waterproof material? (a) a car windscreen (b) a yoga mat (c) a roof sheet (d) a skipping rope
  25. 25.🧱 Is dry wood an electrical conductor or an insulator? (a) an insulator (b) a conductor
  26. 26.True or false: a cooking pot handle needs a heat insulator. (a) True (b) False
  27. 27.🧱 Which property matters most for a spectacle lens? (a) transparent (b) flexible (c) electrical conductor (d) heat insulator
  28. 28.🔍 Which is the odd one out? (a) aluminium (b) rubber (c) clay pottery (d) dry wood
  29. 29.True or false: the core of a wire needs an electrical conductor. (a) False (b) True
  30. 30.🧱 Which property matters most for a raincoat? (a) heat insulator (b) electrical conductor (c) flexible (d) waterproof
  31. 31.🔍 Which is the odd one out? (a) dry wood (b) iron (c) brass (d) steel
  32. 32.True or false: a window pane needs a waterproof material. (a) False (b) True
  33. 33.🧱 Which property matters most for a yoga mat? (a) flexible (b) waterproof (c) electrical conductor (d) transparent
  34. 34.True or false: the core of a wire needs a flexible material. (a) False (b) True
  35. 35.True or false: a roof sheet needs a waterproof material. (a) True (b) False
  36. 36.True or false: a tea flask lining needs a flexible material. (a) False (b) True
  37. 37.True or false: a tea flask lining needs an electrical conductor. (a) False (b) True
  38. 38.True or false: a plug pin needs a flexible material. (a) True (b) False
  39. 39.🔍 Which is the odd one out? (a) copper (b) graphite (c) rubber (d) steel
  40. 40.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor

Answer key

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

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