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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 148 · 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 plastic an electrical conductor or an insulator? (a) an insulator (b) a conductor
  2. 2.Which of these needs an electrical conductor? (a) a hair band (b) a switch contact (c) a tea flask lining (d) a roof sheet
  3. 3.Which of these needs a waterproof material? (a) an umbrella cover (b) a plug pin (c) a spectacle lens (d) an oven glove
  4. 4.🔍 Which is the odd one out? (a) rubber (b) iron (c) dry wood (d) plastic
  5. 5.Which of these needs a waterproof material? (a) the core of a wire (b) a plug pin (c) a yoga mat (d) a roof sheet
  6. 6.🧱 Which material is best for a raincoat? (a) cardboard (b) cotton wool (c) plastic-coated cloth (d) paper
  7. 7.Which of these needs a heat insulator? (a) an umbrella cover (b) a window pane (c) a cooking pot handle (d) a boat hull
  8. 8.True or false: a magnifier lens needs a transparent material. (a) True (b) False
  9. 9.🧱 Which property matters most for a boat hull? (a) transparent (b) flexible (c) heat insulator (d) waterproof
  10. 10.🧱 Is brass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  11. 11.🧱 Is dry wood an electrical conductor or an insulator? (a) an insulator (b) a conductor
  12. 12.🔍 Which is the odd one out? (a) copper (b) glass (c) cotton cloth (d) clay pottery
  13. 13.🧱 Which material is best for the bars inside concrete? (a) glass (b) steel (c) plastic (d) rubber
  14. 14.🧱 Which material is best for the core of an electric wire? (a) copper (b) rubber (c) glass (d) wood
  15. 15.🧱 Which material is best for a cooking pot handle? (a) aluminium (b) iron (c) copper (d) wood or plastic
  16. 16.True or false: an umbrella cover needs a waterproof material. (a) True (b) False
  17. 17.🔍 Which is the odd one out? (a) glass (b) rubber (c) aluminium (d) clay pottery
  18. 18.🧱 Is clay pottery an electrical conductor or an insulator? (a) a conductor (b) an insulator
  19. 19.🔍 Which is the odd one out? (a) steel (b) iron (c) copper (d) dry wood
  20. 20.🔍 Which is the odd one out? (a) copper (b) rubber (c) brass (d) graphite
  21. 21.🧱 Which property matters most for a hair band? (a) electrical conductor (b) waterproof (c) heat insulator (d) flexible
  22. 22.🧱 Which property matters most for a spectacle lens? (a) transparent (b) flexible (c) waterproof (d) heat insulator
  23. 23.🧱 Which material is best for a window pane? (a) glass (b) brick (c) wood (d) steel
  24. 24.🧱 Which property matters most for a plug pin? (a) heat insulator (b) electrical conductor (c) transparent (d) waterproof
  25. 25.🧱 Is graphite an electrical conductor or an insulator? (a) an insulator (b) a conductor
  26. 26.True or false: a magnifier lens needs a flexible material. (a) False (b) True
  27. 27.🧱 Is rubber an electrical conductor or an insulator? (a) an insulator (b) a conductor
  28. 28.🧱 Which property matters most for a yoga mat? (a) waterproof (b) electrical conductor (c) transparent (d) flexible
  29. 29.Which of these needs a transparent material? (a) a roof sheet (b) a car windscreen (c) a boat hull (d) a raincoat
  30. 30.🧱 Which property matters most for the core of a wire? (a) transparent (b) waterproof (c) flexible (d) electrical conductor
  31. 31.True or false: a roof sheet needs a waterproof material. (a) False (b) True
  32. 32.Which of these needs a heat insulator? (a) an umbrella cover (b) a tea flask lining (c) a boat hull (d) the core of a wire
  33. 33.True or false: a window pane needs a waterproof material. (a) False (b) True
  34. 34.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
  35. 35.Which of these needs an electrical conductor? (a) a window pane (b) a water tank (c) a raincoat (d) the core of a wire
  36. 36.🔍 Which is the odd one out? (a) iron (b) copper (c) aluminium (d) plastic
  37. 37.🔍 Which is the odd one out? (a) iron (b) copper (c) graphite (d) clay pottery
  38. 38.🧱 Which property matters most for a car windscreen? (a) transparent (b) electrical conductor (c) waterproof (d) flexible
  39. 39.🔍 Which is the odd one out? (a) aluminium (b) graphite (c) iron (d) cotton cloth
  40. 40.🧱 Which property matters most for a skipping rope? (a) waterproof (b) heat insulator (c) transparent (d) flexible

Answer key

  1. an insulator
  2. a switch contact
  3. an umbrella cover
  4. iron
  5. a roof sheet
  6. plastic-coated cloth
  7. a cooking pot handle
  8. True
  9. waterproof
  10. a conductor
  11. an insulator
  12. copper
  13. steel
  14. copper
  15. wood or plastic
  16. True
  17. aluminium
  18. an insulator
  19. dry wood
  20. rubber
  21. flexible
  22. transparent
  23. glass
  24. electrical conductor
  25. a conductor
  26. False
  27. an insulator
  28. flexible
  29. a car windscreen
  30. electrical conductor
  31. True
  32. a tea flask lining
  33. False
  34. a conductor
  35. the core of a wire
  36. plastic
  37. clay pottery
  38. transparent
  39. cotton cloth
  40. flexible

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