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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 103 · 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.True or false: a window pane needs a transparent material. (a) False (b) True
  2. 2.🧱 Which property matters most for a hair band? (a) transparent (b) electrical conductor (c) flexible (d) waterproof
  3. 3.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  4. 4.Which of these needs a flexible material? (a) a water tank (b) an oven glove (c) a roof sheet (d) a car seat belt
  5. 5.🔍 Which is the odd one out? (a) cotton cloth (b) rubber (c) plastic (d) brass
  6. 6.🔍 Which is the odd one out? (a) graphite (b) plastic (c) aluminium (d) steel
  7. 7.🔍 Which is the odd one out? (a) rubber (b) iron (c) glass (d) plastic
  8. 8.🧱 Which property matters most for a roof sheet? (a) waterproof (b) flexible (c) heat insulator (d) electrical conductor
  9. 9.Which of these needs a waterproof material? (a) an umbrella cover (b) a window pane (c) a spectacle lens (d) a magnifier lens
  10. 10.🧱 Is graphite an electrical conductor or an insulator? (a) a conductor (b) an insulator
  11. 11.🧱 Is brass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  12. 12.Which of these needs a waterproof material? (a) a magnifier lens (b) a water tank (c) the core of a wire (d) a switch contact
  13. 13.🧱 Which property matters most for the core of a wire? (a) flexible (b) electrical conductor (c) heat insulator (d) transparent
  14. 14.🧱 Which material is best for the bars inside concrete? (a) glass (b) steel (c) plastic (d) rubber
  15. 15.Which of these needs a heat insulator? (a) a cooking pot handle (b) a roof sheet (c) the core of a wire (d) a plug pin
  16. 16.🧱 Which property matters most for a switch contact? (a) electrical conductor (b) heat insulator (c) transparent (d) flexible
  17. 17.Which of these needs a flexible material? (a) the core of a wire (b) a window pane (c) a boat hull (d) a yoga mat
  18. 18.🧱 Which property matters most for a skipping rope? (a) electrical conductor (b) transparent (c) waterproof (d) flexible
  19. 19.🧱 Which property matters most for a raincoat? (a) waterproof (b) transparent (c) flexible (d) electrical conductor
  20. 20.True or false: a spectacle lens needs an electrical conductor. (a) True (b) False
  21. 21.Which of these needs a waterproof material? (a) a boat hull (b) a plug pin (c) a yoga mat (d) the core of a wire
  22. 22.Which of these needs a transparent material? (a) a cooking pot handle (b) a plug pin (c) a roof sheet (d) a window pane
  23. 23.🔍 Which is the odd one out? (a) glass (b) brass (c) copper (d) graphite
  24. 24.True or false: an oven glove needs a heat insulator. (a) False (b) True
  25. 25.🔍 Which is the odd one out? (a) plastic (b) cotton cloth (c) dry wood (d) steel
  26. 26.🧱 Which property matters most for a plug pin? (a) electrical conductor (b) waterproof (c) transparent (d) flexible
  27. 27.🧱 Which property matters most for a water tank? (a) transparent (b) heat insulator (c) electrical conductor (d) waterproof
  28. 28.🧱 Is dry wood an electrical conductor or an insulator? (a) a conductor (b) an insulator
  29. 29.Which of these needs a transparent material? (a) a switch contact (b) an oven glove (c) a spectacle lens (d) a skipping rope
  30. 30.🧱 Which material is best for the core of an electric wire? (a) rubber (b) copper (c) glass (d) wood
  31. 31.Which of these needs an electrical conductor? (a) a magnifier lens (b) a car windscreen (c) a switch contact (d) a tea flask lining
  32. 32.🧱 Which material is best for a cooking pot handle? (a) aluminium (b) copper (c) wood or plastic (d) iron
  33. 33.True or false: the core of a wire needs a flexible material. (a) True (b) False
  34. 34.Which of these needs an electrical conductor? (a) a roof sheet (b) a plug pin (c) an oven glove (d) a hair band
  35. 35.🧱 Is copper an electrical conductor or an insulator? (a) a conductor (b) an insulator
  36. 36.True or false: a car windscreen needs an electrical conductor. (a) False (b) True
  37. 37.Which of these needs a heat insulator? (a) an oven glove (b) a spectacle lens (c) a switch contact (d) an umbrella cover
  38. 38.True or false: a switch contact needs a transparent material. (a) True (b) False
  39. 39.True or false: an umbrella cover needs a waterproof material. (a) True (b) False
  40. 40.🧱 Which material is best for a raincoat? (a) paper (b) plastic-coated cloth (c) cotton wool (d) cardboard

Answer key

  1. True
  2. flexible
  3. a conductor
  4. a car seat belt
  5. brass
  6. plastic
  7. iron
  8. waterproof
  9. an umbrella cover
  10. a conductor
  11. a conductor
  12. a water tank
  13. electrical conductor
  14. steel
  15. a cooking pot handle
  16. electrical conductor
  17. a yoga mat
  18. flexible
  19. waterproof
  20. False
  21. a boat hull
  22. a window pane
  23. glass
  24. True
  25. steel
  26. electrical conductor
  27. waterproof
  28. an insulator
  29. a spectacle lens
  30. copper
  31. a switch contact
  32. wood or plastic
  33. False
  34. a plug pin
  35. a conductor
  36. False
  37. an oven glove
  38. False
  39. True
  40. plastic-coated cloth

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