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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 602 · 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 material is best for the bars inside concrete? (a) plastic (b) steel (c) rubber (d) glass
  3. 3.True or false: a cooking pot handle needs a heat insulator. (a) False (b) True
  4. 4.Which of these needs a heat insulator? (a) a water tank (b) a cooking pot handle (c) a magnifier lens (d) a car seat belt
  5. 5.True or false: the core of a wire needs an electrical conductor. (a) False (b) True
  6. 6.🔍 Which is the odd one out? (a) iron (b) steel (c) aluminium (d) clay pottery
  7. 7.🔍 Which is the odd one out? (a) clay pottery (b) plastic (c) brass (d) rubber
  8. 8.True or false: an oven glove needs a heat insulator. (a) True (b) False
  9. 9.🔍 Which is the odd one out? (a) plastic (b) graphite (c) rubber (d) glass
  10. 10.🔍 Which is the odd one out? (a) brass (b) copper (c) aluminium (d) dry wood
  11. 11.True or false: a spectacle lens needs a flexible material. (a) True (b) False
  12. 12.🧱 Which material is best for a cooking pot handle? (a) copper (b) wood or plastic (c) iron (d) aluminium
  13. 13.🧱 Is clay pottery an electrical conductor or an insulator? (a) a conductor (b) an insulator
  14. 14.True or false: a yoga mat needs a flexible material. (a) False (b) True
  15. 15.True or false: a hair band needs a transparent material. (a) True (b) False
  16. 16.🧱 Which property matters most for a tea flask lining? (a) heat insulator (b) waterproof (c) flexible (d) electrical conductor
  17. 17.🧱 Which property matters most for a water tank? (a) waterproof (b) heat insulator (c) flexible (d) transparent
  18. 18.🧱 Which material is best for the core of an electric wire? (a) rubber (b) wood (c) copper (d) glass
  19. 19.🧱 Which property matters most for a cooking pot handle? (a) flexible (b) electrical conductor (c) heat insulator (d) transparent
  20. 20.Which of these needs a waterproof material? (a) an oven glove (b) a roof sheet (c) a hair band (d) a car seat belt
  21. 21.🧱 Which property matters most for a window pane? (a) waterproof (b) transparent (c) heat insulator (d) flexible
  22. 22.🔍 Which is the odd one out? (a) plastic (b) aluminium (c) rubber (d) dry wood
  23. 23.Which of these needs an electrical conductor? (a) a raincoat (b) a roof sheet (c) a switch contact (d) a spectacle lens
  24. 24.True or false: a roof sheet needs a flexible material. (a) True (b) False
  25. 25.Which of these needs an electrical conductor? (a) a car windscreen (b) a plug pin (c) a boat hull (d) a hair band
  26. 26.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  27. 27.🧱 Which property matters most for a skipping rope? (a) waterproof (b) heat insulator (c) transparent (d) flexible
  28. 28.🔍 Which is the odd one out? (a) clay pottery (b) glass (c) dry wood (d) copper
  29. 29.True or false: a switch contact needs an electrical conductor. (a) True (b) False
  30. 30.True or false: a raincoat needs a waterproof material. (a) True (b) False
  31. 31.🧱 Is aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
  32. 32.🧱 Which property matters most for a yoga mat? (a) waterproof (b) heat insulator (c) transparent (d) flexible
  33. 33.🧱 Which property matters most for an oven glove? (a) heat insulator (b) waterproof (c) electrical conductor (d) flexible
  34. 34.🧱 Which material is best for a raincoat? (a) cardboard (b) paper (c) plastic-coated cloth (d) cotton wool
  35. 35.🧱 Which property matters most for a car windscreen? (a) heat insulator (b) transparent (c) flexible (d) electrical conductor
  36. 36.🧱 Is brass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  37. 37.🧱 Is copper an electrical conductor or an insulator? (a) a conductor (b) an insulator
  38. 38.Which of these needs a transparent material? (a) a skipping rope (b) a window pane (c) a tea flask lining (d) an umbrella cover
  39. 39.Which of these needs a heat insulator? (a) a car seat belt (b) a plug pin (c) a tea flask lining (d) a spectacle lens
  40. 40.True or false: a magnifier lens needs an electrical conductor. (a) True (b) False

Answer key

  1. an insulator
  2. steel
  3. True
  4. a cooking pot handle
  5. True
  6. clay pottery
  7. brass
  8. True
  9. graphite
  10. dry wood
  11. False
  12. wood or plastic
  13. an insulator
  14. True
  15. False
  16. heat insulator
  17. waterproof
  18. copper
  19. heat insulator
  20. a roof sheet
  21. transparent
  22. aluminium
  23. a switch contact
  24. False
  25. a plug pin
  26. a conductor
  27. flexible
  28. copper
  29. True
  30. True
  31. a conductor
  32. flexible
  33. heat insulator
  34. plastic-coated cloth
  35. transparent
  36. a conductor
  37. a conductor
  38. a window pane
  39. a tea flask lining
  40. False

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