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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 830 · 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.🧱 Which property matters most for a boat hull? (a) flexible (b) electrical conductor (c) transparent (d) waterproof
  2. 2.🧱 Which property matters most for a skipping rope? (a) waterproof (b) transparent (c) flexible (d) heat insulator
  3. 3.🧱 Which material is best for a raincoat? (a) cardboard (b) plastic-coated cloth (c) cotton wool (d) paper
  4. 4.🔍 Which is the odd one out? (a) aluminium (b) steel (c) dry wood (d) brass
  5. 5.🧱 Which material is best for a window pane? (a) glass (b) wood (c) brick (d) steel
  6. 6.Which of these needs a waterproof material? (a) a plug pin (b) a cooking pot handle (c) a raincoat (d) a car seat belt
  7. 7.🧱 Which material is best for a cooking pot handle? (a) copper (b) iron (c) wood or plastic (d) aluminium
  8. 8.Which of these needs a transparent material? (a) a skipping rope (b) an umbrella cover (c) a spectacle lens (d) a boat hull
  9. 9.🧱 Which property matters most for a switch contact? (a) heat insulator (b) waterproof (c) transparent (d) electrical conductor
  10. 10.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
  11. 11.Which of these needs an electrical conductor? (a) a spectacle lens (b) a tea flask lining (c) a cooking pot handle (d) a switch contact
  12. 12.True or false: a spectacle lens needs a flexible material. (a) True (b) False
  13. 13.🧱 Which property matters most for a magnifier lens? (a) heat insulator (b) flexible (c) transparent (d) electrical conductor
  14. 14.Which of these needs a heat insulator? (a) an oven glove (b) a raincoat (c) a magnifier lens (d) a roof sheet
  15. 15.🧱 Is brass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  16. 16.🔍 Which is the odd one out? (a) rubber (b) aluminium (c) dry wood (d) plastic
  17. 17.🧱 Which material is best for the core of an electric wire? (a) copper (b) glass (c) rubber (d) wood
  18. 18.🔍 Which is the odd one out? (a) aluminium (b) brass (c) graphite (d) rubber
  19. 19.🧱 Which property matters most for an oven glove? (a) electrical conductor (b) waterproof (c) heat insulator (d) transparent
  20. 20.🧱 Is plastic an electrical conductor or an insulator? (a) an insulator (b) a conductor
  21. 21.🧱 Is glass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  22. 22.Which of these needs a transparent material? (a) a skipping rope (b) a magnifier lens (c) a switch contact (d) a tea flask lining
  23. 23.🔍 Which is the odd one out? (a) aluminium (b) graphite (c) brass (d) glass
  24. 24.🧱 Is rubber an electrical conductor or an insulator? (a) a conductor (b) an insulator
  25. 25.🧱 Which property matters most for an umbrella cover? (a) transparent (b) heat insulator (c) flexible (d) waterproof
  26. 26.True or false: a raincoat needs a waterproof material. (a) True (b) False
  27. 27.True or false: a boat hull needs a transparent material. (a) True (b) False
  28. 28.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  29. 29.True or false: a cooking pot handle needs an electrical conductor. (a) False (b) True
  30. 30.🧱 Which material is best for the bars inside concrete? (a) rubber (b) glass (c) steel (d) plastic
  31. 31.True or false: a car windscreen needs an electrical conductor. (a) True (b) False
  32. 32.🔍 Which is the odd one out? (a) graphite (b) copper (c) cotton cloth (d) brass
  33. 33.Which of these needs a waterproof material? (a) an umbrella cover (b) a plug pin (c) a skipping rope (d) a hair band
  34. 34.Which of these needs a heat insulator? (a) a skipping rope (b) a magnifier lens (c) a cooking pot handle (d) a hair band
  35. 35.True or false: an umbrella cover needs a flexible material. (a) False (b) True
  36. 36.True or false: a boat hull needs a heat insulator. (a) True (b) False
  37. 37.🔍 Which is the odd one out? (a) glass (b) clay pottery (c) plastic (d) iron
  38. 38.Which of these needs a flexible material? (a) a car windscreen (b) a car seat belt (c) a water tank (d) a switch contact
  39. 39.Which of these needs an electrical conductor? (a) a window pane (b) an umbrella cover (c) a plug pin (d) a cooking pot handle
  40. 40.🧱 Is graphite an electrical conductor or an insulator? (a) a conductor (b) an insulator

Answer key

  1. waterproof
  2. flexible
  3. plastic-coated cloth
  4. dry wood
  5. glass
  6. a raincoat
  7. wood or plastic
  8. a spectacle lens
  9. electrical conductor
  10. a conductor
  11. a switch contact
  12. False
  13. transparent
  14. an oven glove
  15. a conductor
  16. aluminium
  17. copper
  18. rubber
  19. heat insulator
  20. an insulator
  21. an insulator
  22. a magnifier lens
  23. glass
  24. an insulator
  25. waterproof
  26. True
  27. False
  28. a conductor
  29. False
  30. steel
  31. False
  32. cotton cloth
  33. an umbrella cover
  34. a cooking pot handle
  35. False
  36. False
  37. iron
  38. a car seat belt
  39. a plug pin
  40. a conductor

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