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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 684 · 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 material is best for a raincoat? (a) paper (b) plastic-coated cloth (c) cardboard (d) cotton wool
  2. 2.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  3. 3.True or false: a spectacle lens needs a heat insulator. (a) False (b) True
  4. 4.🧱 Is clay pottery an electrical conductor or an insulator? (a) a conductor (b) an insulator
  5. 5.🔍 Which is the odd one out? (a) copper (b) glass (c) graphite (d) brass
  6. 6.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
  7. 7.Which of these needs a transparent material? (a) a boat hull (b) a car windscreen (c) a water tank (d) a raincoat
  8. 8.🧱 Is dry wood an electrical conductor or an insulator? (a) a conductor (b) an insulator
  9. 9.🧱 Which property matters most for a water tank? (a) flexible (b) transparent (c) electrical conductor (d) waterproof
  10. 10.🧱 Which material is best for a window pane? (a) glass (b) brick (c) steel (d) wood
  11. 11.🔍 Which is the odd one out? (a) clay pottery (b) aluminium (c) graphite (d) iron
  12. 12.🧱 Is glass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  13. 13.True or false: a skipping rope needs a flexible material. (a) True (b) False
  14. 14.🧱 Which property matters most for a car seat belt? (a) waterproof (b) electrical conductor (c) heat insulator (d) flexible
  15. 15.🧱 Which property matters most for a switch contact? (a) flexible (b) waterproof (c) electrical conductor (d) heat insulator
  16. 16.🧱 Which property matters most for a spectacle lens? (a) heat insulator (b) flexible (c) electrical conductor (d) transparent
  17. 17.🔍 Which is the odd one out? (a) glass (b) steel (c) plastic (d) dry wood
  18. 18.🧱 Which property matters most for an oven glove? (a) transparent (b) electrical conductor (c) flexible (d) heat insulator
  19. 19.True or false: a yoga mat needs a flexible material. (a) False (b) True
  20. 20.Which of these needs a transparent material? (a) a switch contact (b) a hair band (c) a cooking pot handle (d) a window pane
  21. 21.🧱 Which property matters most for a boat hull? (a) heat insulator (b) waterproof (c) flexible (d) transparent
  22. 22.True or false: a plug pin needs an electrical conductor. (a) True (b) False
  23. 23.Which of these needs a waterproof material? (a) the core of a wire (b) a cooking pot handle (c) a water tank (d) a car windscreen
  24. 24.🔍 Which is the odd one out? (a) clay pottery (b) plastic (c) aluminium (d) dry wood
  25. 25.🧱 Is brass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  26. 26.🧱 Is graphite an electrical conductor or an insulator? (a) an insulator (b) a conductor
  27. 27.True or false: a window pane needs a transparent material. (a) True (b) False
  28. 28.Which of these needs a heat insulator? (a) a boat hull (b) a tea flask lining (c) a switch contact (d) a car seat belt
  29. 29.🧱 Which property matters most for a raincoat? (a) flexible (b) heat insulator (c) transparent (d) waterproof
  30. 30.🔍 Which is the odd one out? (a) glass (b) cotton cloth (c) plastic (d) copper
  31. 31.Which of these needs a transparent material? (a) a tea flask lining (b) a skipping rope (c) a cooking pot handle (d) a spectacle lens
  32. 32.🧱 Is cotton cloth an electrical conductor or an insulator? (a) an insulator (b) a conductor
  33. 33.🧱 Which material is best for the core of an electric wire? (a) copper (b) wood (c) glass (d) rubber
  34. 34.True or false: a roof sheet needs a flexible material. (a) False (b) True
  35. 35.🧱 Which material is best for the bars inside concrete? (a) plastic (b) rubber (c) glass (d) steel
  36. 36.🧱 Which material is best for a cooking pot handle? (a) aluminium (b) iron (c) wood or plastic (d) copper
  37. 37.Which of these needs a heat insulator? (a) an umbrella cover (b) an oven glove (c) a raincoat (d) a switch contact
  38. 38.🔍 Which is the odd one out? (a) cotton cloth (b) rubber (c) brass (d) clay pottery
  39. 39.Which of these needs an electrical conductor? (a) a water tank (b) a yoga mat (c) a skipping rope (d) a plug pin
  40. 40.True or false: a window pane needs a heat insulator. (a) False (b) True

Answer key

  1. plastic-coated cloth
  2. a conductor
  3. False
  4. an insulator
  5. glass
  6. an insulator
  7. a car windscreen
  8. an insulator
  9. waterproof
  10. glass
  11. clay pottery
  12. an insulator
  13. True
  14. flexible
  15. electrical conductor
  16. transparent
  17. steel
  18. heat insulator
  19. True
  20. a window pane
  21. waterproof
  22. True
  23. a water tank
  24. aluminium
  25. a conductor
  26. a conductor
  27. True
  28. a tea flask lining
  29. waterproof
  30. copper
  31. a spectacle lens
  32. an insulator
  33. copper
  34. False
  35. steel
  36. wood or plastic
  37. an oven glove
  38. brass
  39. a plug pin
  40. False

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