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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 392 · 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 car seat belt? (a) flexible (b) electrical conductor (c) waterproof (d) heat insulator
  2. 2.🧱 Which material is best for the core of an electric wire? (a) wood (b) glass (c) copper (d) rubber
  3. 3.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
  4. 4.🔍 Which is the odd one out? (a) graphite (b) cotton cloth (c) rubber (d) dry wood
  5. 5.🧱 Is clay pottery an electrical conductor or an insulator? (a) a conductor (b) an insulator
  6. 6.True or false: a magnifier lens needs a transparent material. (a) False (b) True
  7. 7.🧱 Which material is best for a window pane? (a) steel (b) wood (c) brick (d) glass
  8. 8.True or false: a tea flask lining needs a heat insulator. (a) False (b) True
  9. 9.🔍 Which is the odd one out? (a) clay pottery (b) plastic (c) cotton cloth (d) iron
  10. 10.🔍 Which is the odd one out? (a) cotton cloth (b) copper (c) brass (d) graphite
  11. 11.🧱 Is iron an electrical conductor or an insulator? (a) a conductor (b) an insulator
  12. 12.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  13. 13.🧱 Which property matters most for a roof sheet? (a) transparent (b) electrical conductor (c) waterproof (d) flexible
  14. 14.🧱 Which material is best for a raincoat? (a) paper (b) cardboard (c) cotton wool (d) plastic-coated cloth
  15. 15.🧱 Which material is best for a cooking pot handle? (a) wood or plastic (b) iron (c) aluminium (d) copper
  16. 16.Which of these needs a heat insulator? (a) an umbrella cover (b) an oven glove (c) a raincoat (d) a boat hull
  17. 17.True or false: an umbrella cover needs a heat insulator. (a) True (b) False
  18. 18.🧱 Which property matters most for a hair band? (a) transparent (b) flexible (c) electrical conductor (d) heat insulator
  19. 19.True or false: a yoga mat needs a flexible material. (a) False (b) True
  20. 20.True or false: a car windscreen needs a heat insulator. (a) False (b) True
  21. 21.Which of these needs an electrical conductor? (a) an umbrella cover (b) a cooking pot handle (c) a switch contact (d) a roof sheet
  22. 22.🧱 Which property matters most for a yoga mat? (a) transparent (b) heat insulator (c) electrical conductor (d) flexible
  23. 23.🧱 Which property matters most for an umbrella cover? (a) flexible (b) waterproof (c) transparent (d) electrical conductor
  24. 24.True or false: a switch contact needs a heat insulator. (a) True (b) False
  25. 25.🔍 Which is the odd one out? (a) glass (b) steel (c) iron (d) graphite
  26. 26.🧱 Which property matters most for a skipping rope? (a) waterproof (b) heat insulator (c) flexible (d) electrical conductor
  27. 27.🧱 Which property matters most for a boat hull? (a) electrical conductor (b) heat insulator (c) transparent (d) waterproof
  28. 28.True or false: a cooking pot handle needs a heat insulator. (a) False (b) True
  29. 29.🔍 Which is the odd one out? (a) steel (b) plastic (c) copper (d) brass
  30. 30.🧱 Which property matters most for a spectacle lens? (a) electrical conductor (b) transparent (c) flexible (d) waterproof
  31. 31.🧱 Is glass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  32. 32.🧱 Is cotton cloth an electrical conductor or an insulator? (a) a conductor (b) an insulator
  33. 33.🧱 Which material is best for the bars inside concrete? (a) plastic (b) glass (c) steel (d) rubber
  34. 34.🧱 Is rubber an electrical conductor or an insulator? (a) a conductor (b) an insulator
  35. 35.Which of these needs a waterproof material? (a) a spectacle lens (b) a yoga mat (c) an umbrella cover (d) the core of a wire
  36. 36.🔍 Which is the odd one out? (a) rubber (b) cotton cloth (c) dry wood (d) brass
  37. 37.Which of these needs a flexible material? (a) a magnifier lens (b) a tea flask lining (c) a yoga mat (d) a car windscreen
  38. 38.True or false: a window pane needs a waterproof material. (a) True (b) False
  39. 39.🔍 Which is the odd one out? (a) glass (b) copper (c) cotton cloth (d) dry wood
  40. 40.Which of these needs a flexible material? (a) a car seat belt (b) a raincoat (c) a switch contact (d) an oven glove

Answer key

  1. flexible
  2. copper
  3. an insulator
  4. graphite
  5. an insulator
  6. True
  7. glass
  8. True
  9. iron
  10. cotton cloth
  11. a conductor
  12. a conductor
  13. waterproof
  14. plastic-coated cloth
  15. wood or plastic
  16. an oven glove
  17. False
  18. flexible
  19. True
  20. False
  21. a switch contact
  22. flexible
  23. waterproof
  24. False
  25. glass
  26. flexible
  27. waterproof
  28. True
  29. plastic
  30. transparent
  31. an insulator
  32. an insulator
  33. steel
  34. an insulator
  35. an umbrella cover
  36. brass
  37. a yoga mat
  38. False
  39. copper
  40. a car seat belt

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