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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 181 · 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 an electrical conductor. (a) True (b) False
  2. 2.🧱 Which property matters most for an umbrella cover? (a) transparent (b) heat insulator (c) waterproof (d) electrical conductor
  3. 3.🔍 Which is the odd one out? (a) copper (b) plastic (c) iron (d) aluminium
  4. 4.Which of these needs a heat insulator? (a) a window pane (b) a car seat belt (c) a car windscreen (d) a tea flask lining
  5. 5.🧱 Which property matters most for a car seat belt? (a) transparent (b) electrical conductor (c) flexible (d) waterproof
  6. 6.🧱 Which material is best for a raincoat? (a) cardboard (b) cotton wool (c) plastic-coated cloth (d) paper
  7. 7.🧱 Which property matters most for a raincoat? (a) waterproof (b) flexible (c) transparent (d) heat insulator
  8. 8.🔍 Which is the odd one out? (a) copper (b) rubber (c) clay pottery (d) plastic
  9. 9.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  10. 10.True or false: an umbrella cover needs a waterproof material. (a) True (b) False
  11. 11.🧱 Which property matters most for a tea flask lining? (a) transparent (b) flexible (c) heat insulator (d) electrical conductor
  12. 12.🔍 Which is the odd one out? (a) dry wood (b) aluminium (c) copper (d) graphite
  13. 13.🧱 Which property matters most for a car windscreen? (a) transparent (b) waterproof (c) flexible (d) heat insulator
  14. 14.🧱 Which property matters most for a cooking pot handle? (a) heat insulator (b) electrical conductor (c) waterproof (d) flexible
  15. 15.True or false: a plug pin needs a transparent material. (a) True (b) False
  16. 16.🧱 Is rubber an electrical conductor or an insulator? (a) a conductor (b) an insulator
  17. 17.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  18. 18.🧱 Which property matters most for an oven glove? (a) waterproof (b) flexible (c) heat insulator (d) transparent
  19. 19.True or false: a plug pin needs an electrical conductor. (a) True (b) False
  20. 20.True or false: a roof sheet needs a waterproof material. (a) False (b) True
  21. 21.🧱 Which property matters most for a switch contact? (a) waterproof (b) transparent (c) electrical conductor (d) heat insulator
  22. 22.Which of these needs an electrical conductor? (a) a car windscreen (b) a plug pin (c) a spectacle lens (d) a cooking pot handle
  23. 23.Which of these needs a waterproof material? (a) a yoga mat (b) a spectacle lens (c) a skipping rope (d) an umbrella cover
  24. 24.🧱 Which material is best for the core of an electric wire? (a) glass (b) wood (c) copper (d) rubber
  25. 25.True or false: a hair band needs an electrical conductor. (a) True (b) False
  26. 26.🧱 Is glass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  27. 27.🔍 Which is the odd one out? (a) rubber (b) graphite (c) clay pottery (d) dry wood
  28. 28.True or false: a cooking pot handle needs a heat insulator. (a) False (b) True
  29. 29.🧱 Which material is best for the bars inside concrete? (a) plastic (b) rubber (c) glass (d) steel
  30. 30.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
  31. 31.🧱 Which property matters most for a yoga mat? (a) flexible (b) transparent (c) heat insulator (d) waterproof
  32. 32.🔍 Which is the odd one out? (a) rubber (b) copper (c) iron (d) aluminium
  33. 33.True or false: the core of a wire needs an electrical conductor. (a) True (b) False
  34. 34.🧱 Which property matters most for a plug pin? (a) flexible (b) electrical conductor (c) heat insulator (d) waterproof
  35. 35.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  36. 36.🧱 Which property matters most for a spectacle lens? (a) flexible (b) transparent (c) electrical conductor (d) waterproof
  37. 37.🧱 Which property matters most for a window pane? (a) flexible (b) heat insulator (c) waterproof (d) transparent
  38. 38.🧱 Is cotton cloth an electrical conductor or an insulator? (a) a conductor (b) an insulator
  39. 39.🧱 Which property matters most for a hair band? (a) waterproof (b) flexible (c) transparent (d) electrical conductor
  40. 40.Which of these needs a transparent material? (a) an umbrella cover (b) a plug pin (c) a window pane (d) an oven glove

Answer key

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

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