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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 731 · 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 the bars inside concrete? (a) glass (b) rubber (c) plastic (d) steel
  2. 2.🔍 Which is the odd one out? (a) clay pottery (b) glass (c) steel (d) cotton cloth
  3. 3.🧱 Which material is best for a cooking pot handle? (a) iron (b) aluminium (c) copper (d) wood or plastic
  4. 4.🧱 Is graphite an electrical conductor or an insulator? (a) a conductor (b) an insulator
  5. 5.Which of these needs an electrical conductor? (a) the core of a wire (b) a magnifier lens (c) an oven glove (d) a roof sheet
  6. 6.🧱 Which material is best for a window pane? (a) brick (b) steel (c) wood (d) glass
  7. 7.🧱 Which property matters most for a skipping rope? (a) flexible (b) electrical conductor (c) transparent (d) heat insulator
  8. 8.🧱 Which property matters most for a switch contact? (a) heat insulator (b) waterproof (c) electrical conductor (d) transparent
  9. 9.🔍 Which is the odd one out? (a) glass (b) dry wood (c) rubber (d) copper
  10. 10.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
  11. 11.Which of these needs a waterproof material? (a) a car windscreen (b) a switch contact (c) a window pane (d) a raincoat
  12. 12.🧱 Is clay pottery an electrical conductor or an insulator? (a) a conductor (b) an insulator
  13. 13.🧱 Which material is best for a raincoat? (a) paper (b) cardboard (c) plastic-coated cloth (d) cotton wool
  14. 14.True or false: a roof sheet needs a heat insulator. (a) False (b) True
  15. 15.🧱 Which property matters most for a car seat belt? (a) transparent (b) waterproof (c) heat insulator (d) flexible
  16. 16.🔍 Which is the odd one out? (a) rubber (b) aluminium (c) dry wood (d) glass
  17. 17.Which of these needs a flexible material? (a) a raincoat (b) a boat hull (c) a water tank (d) a car seat belt
  18. 18.True or false: a car windscreen needs a transparent material. (a) False (b) True
  19. 19.True or false: a tea flask lining needs a heat insulator. (a) False (b) True
  20. 20.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  21. 21.🔍 Which is the odd one out? (a) iron (b) rubber (c) glass (d) plastic
  22. 22.Which of these needs a waterproof material? (a) a water tank (b) a magnifier lens (c) a spectacle lens (d) an oven glove
  23. 23.Which of these needs a transparent material? (a) a hair band (b) the core of a wire (c) a cooking pot handle (d) a car windscreen
  24. 24.True or false: a skipping rope needs a flexible material. (a) False (b) True
  25. 25.🧱 Which property matters most for an umbrella cover? (a) heat insulator (b) transparent (c) waterproof (d) flexible
  26. 26.🧱 Which property matters most for a roof sheet? (a) waterproof (b) flexible (c) electrical conductor (d) heat insulator
  27. 27.Which of these needs a flexible material? (a) a yoga mat (b) a window pane (c) a plug pin (d) an umbrella cover
  28. 28.🧱 Is rubber an electrical conductor or an insulator? (a) an insulator (b) a conductor
  29. 29.🔍 Which is the odd one out? (a) glass (b) brass (c) rubber (d) dry wood
  30. 30.🔍 Which is the odd one out? (a) glass (b) dry wood (c) rubber (d) graphite
  31. 31.🔍 Which is the odd one out? (a) iron (b) cotton cloth (c) aluminium (d) brass
  32. 32.🧱 Which property matters most for a window pane? (a) transparent (b) flexible (c) waterproof (d) electrical conductor
  33. 33.🔍 Which is the odd one out? (a) glass (b) brass (c) graphite (d) steel
  34. 34.🧱 Is dry wood an electrical conductor or an insulator? (a) a conductor (b) an insulator
  35. 35.🧱 Which property matters most for the core of a wire? (a) flexible (b) electrical conductor (c) transparent (d) waterproof
  36. 36.Which of these needs a transparent material? (a) an oven glove (b) a water tank (c) a raincoat (d) a spectacle lens
  37. 37.🧱 Which material is best for the core of an electric wire? (a) rubber (b) glass (c) wood (d) copper
  38. 38.Which of these needs a waterproof material? (a) a spectacle lens (b) a roof sheet (c) a car seat belt (d) the core of a wire
  39. 39.True or false: a boat hull needs a flexible material. (a) True (b) False
  40. 40.Which of these needs a heat insulator? (a) a raincoat (b) a cooking pot handle (c) a window pane (d) the core of a wire

Answer key

  1. steel
  2. steel
  3. wood or plastic
  4. a conductor
  5. the core of a wire
  6. glass
  7. flexible
  8. electrical conductor
  9. copper
  10. a conductor
  11. a raincoat
  12. an insulator
  13. plastic-coated cloth
  14. False
  15. flexible
  16. aluminium
  17. a car seat belt
  18. True
  19. True
  20. a conductor
  21. iron
  22. a water tank
  23. a car windscreen
  24. True
  25. waterproof
  26. waterproof
  27. a yoga mat
  28. an insulator
  29. brass
  30. graphite
  31. cotton cloth
  32. transparent
  33. glass
  34. an insulator
  35. electrical conductor
  36. a spectacle lens
  37. copper
  38. a roof sheet
  39. False
  40. a cooking pot handle

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