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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 939 · 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 aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
  2. 2.🧱 Is cotton cloth an electrical conductor or an insulator? (a) an insulator (b) a conductor
  3. 3.True or false: a window pane needs a waterproof material. (a) True (b) False
  4. 4.True or false: a tea flask lining needs a heat insulator. (a) False (b) True
  5. 5.🔍 Which is the odd one out? (a) glass (b) copper (c) rubber (d) clay pottery
  6. 6.🧱 Which material is best for a window pane? (a) glass (b) wood (c) steel (d) brick
  7. 7.🧱 Which property matters most for a raincoat? (a) flexible (b) heat insulator (c) transparent (d) waterproof
  8. 8.🧱 Is brass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  9. 9.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
  10. 10.🧱 Which material is best for a raincoat? (a) cotton wool (b) cardboard (c) paper (d) plastic-coated cloth
  11. 11.True or false: a car seat belt needs a transparent material. (a) False (b) True
  12. 12.Which of these needs a transparent material? (a) an umbrella cover (b) a window pane (c) the core of a wire (d) a plug pin
  13. 13.Which of these needs a flexible material? (a) a tea flask lining (b) a switch contact (c) a yoga mat (d) a magnifier lens
  14. 14.Which of these needs a transparent material? (a) a raincoat (b) a spectacle lens (c) a water tank (d) a hair band
  15. 15.Which of these needs an electrical conductor? (a) a switch contact (b) an umbrella cover (c) a water tank (d) a window pane
  16. 16.True or false: a yoga mat needs a flexible material. (a) True (b) False
  17. 17.🔍 Which is the odd one out? (a) clay pottery (b) rubber (c) aluminium (d) glass
  18. 18.🧱 Which property matters most for a yoga mat? (a) flexible (b) heat insulator (c) electrical conductor (d) transparent
  19. 19.Which of these needs a heat insulator? (a) a skipping rope (b) a raincoat (c) a water tank (d) a tea flask lining
  20. 20.🧱 Which property matters most for a car windscreen? (a) heat insulator (b) waterproof (c) electrical conductor (d) transparent
  21. 21.True or false: a spectacle lens needs an electrical conductor. (a) True (b) False
  22. 22.True or false: a water tank needs a waterproof material. (a) False (b) True
  23. 23.🧱 Is graphite an electrical conductor or an insulator? (a) an insulator (b) a conductor
  24. 24.🧱 Which material is best for the core of an electric wire? (a) glass (b) rubber (c) copper (d) wood
  25. 25.🔍 Which is the odd one out? (a) steel (b) aluminium (c) copper (d) glass
  26. 26.Which of these needs a heat insulator? (a) a boat hull (b) a car seat belt (c) a water tank (d) a cooking pot handle
  27. 27.🔍 Which is the odd one out? (a) cotton cloth (b) aluminium (c) copper (d) graphite
  28. 28.🧱 Which property matters most for a boat hull? (a) flexible (b) heat insulator (c) waterproof (d) transparent
  29. 29.Which of these needs a waterproof material? (a) a car seat belt (b) a window pane (c) a yoga mat (d) a water tank
  30. 30.🧱 Is clay pottery an electrical conductor or an insulator? (a) an insulator (b) a conductor
  31. 31.Which of these needs a waterproof material? (a) a car windscreen (b) an oven glove (c) a skipping rope (d) a roof sheet
  32. 32.🔍 Which is the odd one out? (a) aluminium (b) rubber (c) steel (d) iron
  33. 33.🧱 Which property matters most for a cooking pot handle? (a) electrical conductor (b) heat insulator (c) transparent (d) waterproof
  34. 34.🧱 Which material is best for a cooking pot handle? (a) iron (b) aluminium (c) wood or plastic (d) copper
  35. 35.True or false: a window pane needs an electrical conductor. (a) False (b) True
  36. 36.Which of these needs a waterproof material? (a) the core of a wire (b) a car seat belt (c) an umbrella cover (d) a plug pin
  37. 37.🧱 Which property matters most for the core of a wire? (a) transparent (b) electrical conductor (c) waterproof (d) flexible
  38. 38.🧱 Which material is best for the bars inside concrete? (a) glass (b) rubber (c) steel (d) plastic
  39. 39.True or false: a boat hull needs a waterproof material. (a) False (b) True
  40. 40.🧱 Which property matters most for a water tank? (a) heat insulator (b) waterproof (c) flexible (d) transparent

Answer key

  1. a conductor
  2. an insulator
  3. False
  4. True
  5. copper
  6. glass
  7. waterproof
  8. a conductor
  9. an insulator
  10. plastic-coated cloth
  11. False
  12. a window pane
  13. a yoga mat
  14. a spectacle lens
  15. a switch contact
  16. True
  17. aluminium
  18. flexible
  19. a tea flask lining
  20. transparent
  21. False
  22. True
  23. a conductor
  24. copper
  25. glass
  26. a cooking pot handle
  27. cotton cloth
  28. waterproof
  29. a water tank
  30. an insulator
  31. a roof sheet
  32. rubber
  33. heat insulator
  34. wood or plastic
  35. False
  36. an umbrella cover
  37. electrical conductor
  38. steel
  39. True
  40. waterproof

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