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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 435 · 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 hair band? (a) flexible (b) transparent (c) waterproof (d) heat insulator
  2. 2.🧱 Is rubber an electrical conductor or an insulator? (a) an insulator (b) a conductor
  3. 3.🔍 Which is the odd one out? (a) brass (b) iron (c) graphite (d) cotton cloth
  4. 4.🔍 Which is the odd one out? (a) rubber (b) copper (c) steel (d) brass
  5. 5.Which of these needs a heat insulator? (a) a car windscreen (b) an oven glove (c) an umbrella cover (d) a switch contact
  6. 6.True or false: a tea flask lining needs an electrical conductor. (a) False (b) True
  7. 7.🧱 Is graphite an electrical conductor or an insulator? (a) an insulator (b) a conductor
  8. 8.🧱 Which property matters most for a magnifier lens? (a) electrical conductor (b) flexible (c) waterproof (d) transparent
  9. 9.Which of these needs an electrical conductor? (a) a boat hull (b) a hair band (c) a plug pin (d) a car seat belt
  10. 10.True or false: a plug pin needs a flexible material. (a) True (b) False
  11. 11.🧱 Which property matters most for a switch contact? (a) flexible (b) electrical conductor (c) heat insulator (d) waterproof
  12. 12.🧱 Is dry wood an electrical conductor or an insulator? (a) a conductor (b) an insulator
  13. 13.🧱 Which material is best for the bars inside concrete? (a) steel (b) glass (c) plastic (d) rubber
  14. 14.Which of these needs a transparent material? (a) a raincoat (b) a plug pin (c) a roof sheet (d) a spectacle lens
  15. 15.True or false: a yoga mat needs a transparent material. (a) False (b) True
  16. 16.Which of these needs a transparent material? (a) a raincoat (b) a tea flask lining (c) a water tank (d) a window pane
  17. 17.🔍 Which is the odd one out? (a) dry wood (b) steel (c) rubber (d) clay pottery
  18. 18.Which of these needs a waterproof material? (a) a cooking pot handle (b) an umbrella cover (c) a yoga mat (d) a car seat belt
  19. 19.🔍 Which is the odd one out? (a) brass (b) aluminium (c) copper (d) dry wood
  20. 20.🔍 Which is the odd one out? (a) aluminium (b) iron (c) plastic (d) copper
  21. 21.🔍 Which is the odd one out? (a) rubber (b) iron (c) dry wood (d) glass
  22. 22.🧱 Which material is best for a raincoat? (a) plastic-coated cloth (b) paper (c) cardboard (d) cotton wool
  23. 23.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
  24. 24.🧱 Which material is best for the core of an electric wire? (a) glass (b) wood (c) rubber (d) copper
  25. 25.🧱 Which property matters most for a car seat belt? (a) waterproof (b) transparent (c) flexible (d) electrical conductor
  26. 26.True or false: a boat hull needs a transparent material. (a) True (b) False
  27. 27.Which of these needs an electrical conductor? (a) a window pane (b) the core of a wire (c) a car windscreen (d) a raincoat
  28. 28.🧱 Is cotton cloth an electrical conductor or an insulator? (a) a conductor (b) an insulator
  29. 29.Which of these needs a flexible material? (a) a car windscreen (b) an umbrella cover (c) an oven glove (d) a skipping rope
  30. 30.🧱 Which material is best for a window pane? (a) wood (b) steel (c) brick (d) glass
  31. 31.True or false: a roof sheet needs a heat insulator. (a) False (b) True
  32. 32.Which of these needs an electrical conductor? (a) an umbrella cover (b) an oven glove (c) a switch contact (d) a cooking pot handle
  33. 33.True or false: a boat hull needs an electrical conductor. (a) True (b) False
  34. 34.Which of these needs a heat insulator? (a) a magnifier lens (b) a cooking pot handle (c) a roof sheet (d) an umbrella cover
  35. 35.True or false: a car seat belt needs a flexible material. (a) True (b) False
  36. 36.🧱 Which property matters most for a plug pin? (a) heat insulator (b) flexible (c) electrical conductor (d) transparent
  37. 37.True or false: an oven glove needs a waterproof material. (a) False (b) True
  38. 38.🧱 Is iron an electrical conductor or an insulator? (a) a conductor (b) an insulator
  39. 39.🧱 Which material is best for a cooking pot handle? (a) aluminium (b) iron (c) wood or plastic (d) copper
  40. 40.🧱 Is glass an electrical conductor or an insulator? (a) a conductor (b) an insulator

Answer key

  1. flexible
  2. an insulator
  3. cotton cloth
  4. rubber
  5. an oven glove
  6. False
  7. a conductor
  8. transparent
  9. a plug pin
  10. False
  11. electrical conductor
  12. an insulator
  13. steel
  14. a spectacle lens
  15. False
  16. a window pane
  17. steel
  18. an umbrella cover
  19. dry wood
  20. plastic
  21. iron
  22. plastic-coated cloth
  23. an insulator
  24. copper
  25. flexible
  26. False
  27. the core of a wire
  28. an insulator
  29. a skipping rope
  30. glass
  31. False
  32. a switch contact
  33. False
  34. a cooking pot handle
  35. True
  36. electrical conductor
  37. False
  38. a conductor
  39. wood or plastic
  40. an insulator

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