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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 227 · 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 of these needs a waterproof material? (a) a window pane (b) a tea flask lining (c) a hair band (d) a raincoat
  2. 2.🧱 Which material is best for the bars inside concrete? (a) steel (b) glass (c) rubber (d) plastic
  3. 3.🧱 Which material is best for the core of an electric wire? (a) rubber (b) copper (c) wood (d) glass
  4. 4.🧱 Which property matters most for a switch contact? (a) transparent (b) heat insulator (c) waterproof (d) electrical conductor
  5. 5.🧱 Which property matters most for the core of a wire? (a) transparent (b) heat insulator (c) flexible (d) electrical conductor
  6. 6.🧱 Which material is best for a cooking pot handle? (a) copper (b) aluminium (c) wood or plastic (d) iron
  7. 7.🔍 Which is the odd one out? (a) dry wood (b) graphite (c) aluminium (d) iron
  8. 8.🧱 Which material is best for a raincoat? (a) plastic-coated cloth (b) cardboard (c) paper (d) cotton wool
  9. 9.Which of these needs a heat insulator? (a) a boat hull (b) a tea flask lining (c) a skipping rope (d) a raincoat
  10. 10.🔍 Which is the odd one out? (a) graphite (b) iron (c) plastic (d) copper
  11. 11.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  12. 12.🔍 Which is the odd one out? (a) iron (b) cotton cloth (c) aluminium (d) copper
  13. 13.🧱 Which property matters most for a hair band? (a) heat insulator (b) transparent (c) waterproof (d) flexible
  14. 14.Which of these needs a waterproof material? (a) a hair band (b) a yoga mat (c) a roof sheet (d) the core of a wire
  15. 15.Which of these needs an electrical conductor? (a) a raincoat (b) the core of a wire (c) a car windscreen (d) a magnifier lens
  16. 16.True or false: a skipping rope needs an electrical conductor. (a) True (b) False
  17. 17.🧱 Which property matters most for a tea flask lining? (a) electrical conductor (b) waterproof (c) heat insulator (d) flexible
  18. 18.🧱 Which material is best for a window pane? (a) steel (b) wood (c) glass (d) brick
  19. 19.🔍 Which is the odd one out? (a) brass (b) iron (c) rubber (d) steel
  20. 20.Which of these needs a flexible material? (a) a magnifier lens (b) a roof sheet (c) a water tank (d) a car seat belt
  21. 21.Which of these needs a heat insulator? (a) the core of a wire (b) a yoga mat (c) a water tank (d) a cooking pot handle
  22. 22.True or false: a switch contact needs a transparent material. (a) False (b) True
  23. 23.True or false: a car windscreen needs a transparent material. (a) True (b) False
  24. 24.🧱 Which property matters most for a boat hull? (a) heat insulator (b) transparent (c) electrical conductor (d) waterproof
  25. 25.🧱 Which property matters most for a cooking pot handle? (a) flexible (b) electrical conductor (c) waterproof (d) heat insulator
  26. 26.🔍 Which is the odd one out? (a) cotton cloth (b) glass (c) copper (d) dry wood
  27. 27.🧱 Is brass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  28. 28.Which of these needs an electrical conductor? (a) a switch contact (b) a window pane (c) a skipping rope (d) a magnifier lens
  29. 29.True or false: a car windscreen needs a waterproof material. (a) True (b) False
  30. 30.🧱 Is rubber an electrical conductor or an insulator? (a) a conductor (b) an insulator
  31. 31.True or false: a plug pin needs an electrical conductor. (a) True (b) False
  32. 32.🔍 Which is the odd one out? (a) copper (b) iron (c) brass (d) clay pottery
  33. 33.Which of these needs an electrical conductor? (a) a car seat belt (b) a raincoat (c) a plug pin (d) a spectacle lens
  34. 34.🧱 Which property matters most for an umbrella cover? (a) heat insulator (b) flexible (c) electrical conductor (d) waterproof
  35. 35.🧱 Which property matters most for a water tank? (a) flexible (b) electrical conductor (c) transparent (d) waterproof
  36. 36.🧱 Which property matters most for a yoga mat? (a) transparent (b) electrical conductor (c) flexible (d) waterproof
  37. 37.True or false: a water tank needs an electrical conductor. (a) True (b) False
  38. 38.🧱 Which property matters most for a skipping rope? (a) waterproof (b) heat insulator (c) transparent (d) flexible
  39. 39.Which of these needs a transparent material? (a) a boat hull (b) the core of a wire (c) a window pane (d) a tea flask lining
  40. 40.True or false: a roof sheet needs a waterproof material. (a) False (b) True

Answer key

  1. a raincoat
  2. steel
  3. copper
  4. electrical conductor
  5. electrical conductor
  6. wood or plastic
  7. dry wood
  8. plastic-coated cloth
  9. a tea flask lining
  10. plastic
  11. a conductor
  12. cotton cloth
  13. flexible
  14. a roof sheet
  15. the core of a wire
  16. False
  17. heat insulator
  18. glass
  19. rubber
  20. a car seat belt
  21. a cooking pot handle
  22. False
  23. True
  24. waterproof
  25. heat insulator
  26. copper
  27. a conductor
  28. a switch contact
  29. False
  30. an insulator
  31. True
  32. clay pottery
  33. a plug pin
  34. waterproof
  35. waterproof
  36. flexible
  37. False
  38. flexible
  39. a window pane
  40. True

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