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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 542 · 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 an umbrella cover? (a) transparent (b) heat insulator (c) waterproof (d) electrical conductor
  2. 2.True or false: a magnifier lens needs a waterproof material. (a) True (b) False
  3. 3.🔍 Which is the odd one out? (a) rubber (b) aluminium (c) graphite (d) copper
  4. 4.🧱 Which property matters most for a window pane? (a) electrical conductor (b) flexible (c) transparent (d) heat insulator
  5. 5.🔍 Which is the odd one out? (a) brass (b) iron (c) clay pottery (d) aluminium
  6. 6.Which of these needs a transparent material? (a) a water tank (b) a car windscreen (c) a cooking pot handle (d) an umbrella cover
  7. 7.🔍 Which is the odd one out? (a) brass (b) clay pottery (c) plastic (d) dry wood
  8. 8.True or false: a car seat belt needs a transparent material. (a) True (b) False
  9. 9.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  10. 10.Which of these needs a transparent material? (a) a car seat belt (b) an umbrella cover (c) a magnifier lens (d) a switch contact
  11. 11.🔍 Which is the odd one out? (a) steel (b) plastic (c) graphite (d) brass
  12. 12.Which of these needs a waterproof material? (a) a window pane (b) an umbrella cover (c) a car windscreen (d) a skipping rope
  13. 13.🧱 Which property matters most for a switch contact? (a) waterproof (b) flexible (c) heat insulator (d) electrical conductor
  14. 14.🧱 Is aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
  15. 15.True or false: the core of a wire needs an electrical conductor. (a) False (b) True
  16. 16.🔍 Which is the odd one out? (a) steel (b) iron (c) cotton cloth (d) graphite
  17. 17.True or false: a boat hull needs a flexible material. (a) True (b) False
  18. 18.True or false: a skipping rope needs a flexible material. (a) True (b) False
  19. 19.🧱 Which property matters most for a water tank? (a) transparent (b) waterproof (c) heat insulator (d) electrical conductor
  20. 20.Which of these needs a heat insulator? (a) a window pane (b) a hair band (c) a yoga mat (d) a cooking pot handle
  21. 21.🧱 Which material is best for the core of an electric wire? (a) wood (b) rubber (c) glass (d) copper
  22. 22.🔍 Which is the odd one out? (a) copper (b) graphite (c) brass (d) glass
  23. 23.True or false: a roof sheet needs a flexible material. (a) False (b) True
  24. 24.True or false: a yoga mat needs a waterproof material. (a) True (b) False
  25. 25.🧱 Which material is best for a cooking pot handle? (a) copper (b) wood or plastic (c) iron (d) aluminium
  26. 26.🧱 Is clay pottery an electrical conductor or an insulator? (a) a conductor (b) an insulator
  27. 27.🧱 Which property matters most for a tea flask lining? (a) waterproof (b) electrical conductor (c) flexible (d) heat insulator
  28. 28.🧱 Is graphite an electrical conductor or an insulator? (a) a conductor (b) an insulator
  29. 29.True or false: a window pane needs a flexible material. (a) True (b) False
  30. 30.🧱 Is glass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  31. 31.Which of these needs an electrical conductor? (a) a window pane (b) a cooking pot handle (c) a raincoat (d) a switch contact
  32. 32.🧱 Which property matters most for a spectacle lens? (a) transparent (b) heat insulator (c) flexible (d) electrical conductor
  33. 33.🧱 Which material is best for a window pane? (a) glass (b) steel (c) wood (d) brick
  34. 34.Which of these needs a waterproof material? (a) a car windscreen (b) a magnifier lens (c) a window pane (d) a boat hull
  35. 35.True or false: a raincoat needs a flexible material. (a) True (b) False
  36. 36.Which of these needs a waterproof material? (a) a car windscreen (b) a switch contact (c) a water tank (d) a cooking pot handle
  37. 37.🧱 Which property matters most for a raincoat? (a) waterproof (b) transparent (c) electrical conductor (d) flexible
  38. 38.True or false: a raincoat needs an electrical conductor. (a) True (b) False
  39. 39.True or false: a roof sheet needs a waterproof material. (a) True (b) False
  40. 40.🧱 Is rubber an electrical conductor or an insulator? (a) an insulator (b) a conductor

Answer key

  1. waterproof
  2. False
  3. rubber
  4. transparent
  5. clay pottery
  6. a car windscreen
  7. brass
  8. False
  9. a conductor
  10. a magnifier lens
  11. plastic
  12. an umbrella cover
  13. electrical conductor
  14. a conductor
  15. True
  16. cotton cloth
  17. False
  18. True
  19. waterproof
  20. a cooking pot handle
  21. copper
  22. glass
  23. False
  24. False
  25. wood or plastic
  26. an insulator
  27. heat insulator
  28. a conductor
  29. False
  30. an insulator
  31. a switch contact
  32. transparent
  33. glass
  34. a boat hull
  35. False
  36. a water tank
  37. waterproof
  38. False
  39. True
  40. an insulator

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