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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 721 · 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 is the odd one out? (a) graphite (b) steel (c) rubber (d) aluminium
  2. 2.🧱 Which material is best for a window pane? (a) glass (b) brick (c) wood (d) steel
  3. 3.🧱 Which property matters most for a magnifier lens? (a) electrical conductor (b) flexible (c) waterproof (d) transparent
  4. 4.True or false: a roof sheet needs a waterproof material. (a) True (b) False
  5. 5.🔍 Which is the odd one out? (a) glass (b) steel (c) dry wood (d) clay pottery
  6. 6.🧱 Which material is best for the bars inside concrete? (a) plastic (b) steel (c) glass (d) rubber
  7. 7.True or false: a car windscreen needs a flexible material. (a) False (b) True
  8. 8.True or false: a car windscreen needs a heat insulator. (a) True (b) False
  9. 9.True or false: a cooking pot handle needs a waterproof material. (a) False (b) True
  10. 10.🧱 Which property matters most for a hair band? (a) heat insulator (b) flexible (c) waterproof (d) transparent
  11. 11.Which of these needs an electrical conductor? (a) a roof sheet (b) a hair band (c) the core of a wire (d) a tea flask lining
  12. 12.True or false: a spectacle lens needs a flexible material. (a) True (b) False
  13. 13.True or false: a cooking pot handle needs a flexible material. (a) True (b) False
  14. 14.🧱 Which material is best for a cooking pot handle? (a) aluminium (b) wood or plastic (c) copper (d) iron
  15. 15.🧱 Is cotton cloth an electrical conductor or an insulator? (a) a conductor (b) an insulator
  16. 16.🧱 Is dry wood an electrical conductor or an insulator? (a) an insulator (b) a conductor
  17. 17.🧱 Which material is best for the core of an electric wire? (a) copper (b) wood (c) rubber (d) glass
  18. 18.🔍 Which is the odd one out? (a) cotton cloth (b) dry wood (c) rubber (d) aluminium
  19. 19.Which of these needs a heat insulator? (a) a plug pin (b) a water tank (c) a raincoat (d) a cooking pot handle
  20. 20.🧱 Which material is best for a raincoat? (a) paper (b) cotton wool (c) cardboard (d) plastic-coated cloth
  21. 21.Which of these needs a waterproof material? (a) a car windscreen (b) a raincoat (c) a yoga mat (d) the core of a wire
  22. 22.🔍 Which is the odd one out? (a) graphite (b) brass (c) copper (d) glass
  23. 23.🧱 Which property matters most for a cooking pot handle? (a) heat insulator (b) waterproof (c) flexible (d) transparent
  24. 24.🔍 Which is the odd one out? (a) cotton cloth (b) copper (c) plastic (d) clay pottery
  25. 25.🧱 Is brass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  26. 26.🧱 Which property matters most for a switch contact? (a) transparent (b) heat insulator (c) electrical conductor (d) waterproof
  27. 27.Which of these needs a heat insulator? (a) a car windscreen (b) an oven glove (c) a roof sheet (d) a hair band
  28. 28.🧱 Which property matters most for a car windscreen? (a) flexible (b) electrical conductor (c) waterproof (d) transparent
  29. 29.True or false: an oven glove needs a heat insulator. (a) True (b) False
  30. 30.True or false: a roof sheet needs a heat insulator. (a) True (b) False
  31. 31.🔍 Which is the odd one out? (a) copper (b) dry wood (c) iron (d) aluminium
  32. 32.🧱 Is aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
  33. 33.Which of these needs a waterproof material? (a) an oven glove (b) the core of a wire (c) a roof sheet (d) a plug pin
  34. 34.🧱 Which property matters most for a raincoat? (a) electrical conductor (b) flexible (c) waterproof (d) heat insulator
  35. 35.🔍 Which is the odd one out? (a) copper (b) plastic (c) steel (d) iron
  36. 36.🧱 Which property matters most for a water tank? (a) electrical conductor (b) waterproof (c) flexible (d) heat insulator
  37. 37.True or false: a skipping rope needs a waterproof material. (a) True (b) False
  38. 38.True or false: a skipping rope needs a flexible material. (a) True (b) False
  39. 39.🧱 Is graphite an electrical conductor or an insulator? (a) an insulator (b) a conductor
  40. 40.🧱 Which property matters most for the core of a wire? (a) waterproof (b) flexible (c) heat insulator (d) electrical conductor

Answer key

  1. rubber
  2. glass
  3. transparent
  4. True
  5. steel
  6. steel
  7. False
  8. False
  9. False
  10. flexible
  11. the core of a wire
  12. False
  13. False
  14. wood or plastic
  15. an insulator
  16. an insulator
  17. copper
  18. aluminium
  19. a cooking pot handle
  20. plastic-coated cloth
  21. a raincoat
  22. glass
  23. heat insulator
  24. copper
  25. a conductor
  26. electrical conductor
  27. an oven glove
  28. transparent
  29. True
  30. False
  31. dry wood
  32. a conductor
  33. a roof sheet
  34. waterproof
  35. plastic
  36. waterproof
  37. False
  38. True
  39. a conductor
  40. electrical conductor

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