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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 726 · 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.True or false: a spectacle lens needs a waterproof material. (a) False (b) True
  2. 2.True or false: a switch contact needs an electrical conductor. (a) True (b) False
  3. 3.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  4. 4.Which of these needs a waterproof material? (a) a yoga mat (b) a car seat belt (c) a raincoat (d) a switch contact
  5. 5.🧱 Which material is best for the core of an electric wire? (a) rubber (b) copper (c) wood (d) glass
  6. 6.🧱 Which property matters most for a magnifier lens? (a) flexible (b) waterproof (c) heat insulator (d) transparent
  7. 7.True or false: a window pane needs a transparent material. (a) False (b) True
  8. 8.Which of these needs a flexible material? (a) a yoga mat (b) a spectacle lens (c) a tea flask lining (d) an umbrella cover
  9. 9.🔍 Which is the odd one out? (a) aluminium (b) graphite (c) steel (d) plastic
  10. 10.🔍 Which is the odd one out? (a) aluminium (b) copper (c) iron (d) rubber
  11. 11.Which of these needs a transparent material? (a) a boat hull (b) a roof sheet (c) a magnifier lens (d) a cooking pot handle
  12. 12.True or false: a yoga mat needs a flexible material. (a) False (b) True
  13. 13.Which of these needs a flexible material? (a) a spectacle lens (b) an umbrella cover (c) a car seat belt (d) a window pane
  14. 14.Which of these needs a waterproof material? (a) a water tank (b) a spectacle lens (c) a car windscreen (d) a yoga mat
  15. 15.True or false: a roof sheet needs a waterproof material. (a) True (b) False
  16. 16.🧱 Which property matters most for a raincoat? (a) flexible (b) transparent (c) heat insulator (d) waterproof
  17. 17.🧱 Is graphite an electrical conductor or an insulator? (a) a conductor (b) an insulator
  18. 18.🧱 Which material is best for the bars inside concrete? (a) plastic (b) rubber (c) glass (d) steel
  19. 19.True or false: a roof sheet needs a transparent material. (a) True (b) False
  20. 20.🧱 Which property matters most for an oven glove? (a) electrical conductor (b) flexible (c) heat insulator (d) waterproof
  21. 21.True or false: a magnifier lens needs a heat insulator. (a) False (b) True
  22. 22.🧱 Is rubber an electrical conductor or an insulator? (a) a conductor (b) an insulator
  23. 23.🧱 Is cotton cloth an electrical conductor or an insulator? (a) an insulator (b) a conductor
  24. 24.🔍 Which is the odd one out? (a) iron (b) graphite (c) steel (d) cotton cloth
  25. 25.🧱 Which property matters most for a boat hull? (a) heat insulator (b) waterproof (c) electrical conductor (d) flexible
  26. 26.Which of these needs an electrical conductor? (a) a roof sheet (b) an oven glove (c) a skipping rope (d) a plug pin
  27. 27.🔍 Which is the odd one out? (a) dry wood (b) aluminium (c) clay pottery (d) rubber
  28. 28.🧱 Is clay pottery an electrical conductor or an insulator? (a) a conductor (b) an insulator
  29. 29.🧱 Which material is best for a window pane? (a) steel (b) glass (c) wood (d) brick
  30. 30.🧱 Which property matters most for a yoga mat? (a) flexible (b) waterproof (c) electrical conductor (d) transparent
  31. 31.True or false: a tea flask lining needs a heat insulator. (a) True (b) False
  32. 32.🧱 Which property matters most for a water tank? (a) transparent (b) electrical conductor (c) waterproof (d) flexible
  33. 33.🔍 Which is the odd one out? (a) steel (b) dry wood (c) cotton cloth (d) rubber
  34. 34.True or false: an umbrella cover needs a transparent material. (a) True (b) False
  35. 35.🔍 Which is the odd one out? (a) iron (b) copper (c) dry wood (d) aluminium
  36. 36.🧱 Which property matters most for an umbrella cover? (a) flexible (b) electrical conductor (c) transparent (d) waterproof
  37. 37.Which of these needs a heat insulator? (a) a tea flask lining (b) a raincoat (c) a skipping rope (d) a plug pin
  38. 38.🧱 Which material is best for a raincoat? (a) cotton wool (b) paper (c) cardboard (d) plastic-coated cloth
  39. 39.Which of these needs a waterproof material? (a) a hair band (b) a window pane (c) an umbrella cover (d) a spectacle lens
  40. 40.🧱 Which property matters most for a cooking pot handle? (a) waterproof (b) electrical conductor (c) heat insulator (d) transparent

Answer key

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

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