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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 801 · 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 core of an electric wire? (a) wood (b) copper (c) rubber (d) glass
  2. 2.🧱 Which property matters most for an oven glove? (a) electrical conductor (b) transparent (c) waterproof (d) heat insulator
  3. 3.🧱 Which property matters most for a plug pin? (a) waterproof (b) transparent (c) electrical conductor (d) flexible
  4. 4.🧱 Is clay pottery an electrical conductor or an insulator? (a) an insulator (b) a conductor
  5. 5.🔍 Which is the odd one out? (a) glass (b) plastic (c) aluminium (d) dry wood
  6. 6.Which of these needs an electrical conductor? (a) a yoga mat (b) a boat hull (c) a skipping rope (d) the core of a wire
  7. 7.🧱 Which property matters most for a car seat belt? (a) flexible (b) transparent (c) heat insulator (d) waterproof
  8. 8.True or false: a boat hull needs a waterproof material. (a) False (b) True
  9. 9.🧱 Is graphite an electrical conductor or an insulator? (a) a conductor (b) an insulator
  10. 10.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  11. 11.Which of these needs an electrical conductor? (a) an oven glove (b) a roof sheet (c) a plug pin (d) a cooking pot handle
  12. 12.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
  13. 13.Which of these needs a heat insulator? (a) a yoga mat (b) a roof sheet (c) a raincoat (d) a tea flask lining
  14. 14.Which of these needs a flexible material? (a) a yoga mat (b) an umbrella cover (c) a tea flask lining (d) a spectacle lens
  15. 15.🧱 Which material is best for a cooking pot handle? (a) aluminium (b) iron (c) copper (d) wood or plastic
  16. 16.🧱 Which property matters most for a boat hull? (a) waterproof (b) flexible (c) heat insulator (d) transparent
  17. 17.🔍 Which is the odd one out? (a) graphite (b) aluminium (c) rubber (d) brass
  18. 18.🧱 Is glass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  19. 19.Which of these needs an electrical conductor? (a) a magnifier lens (b) a skipping rope (c) a switch contact (d) a window pane
  20. 20.True or false: a magnifier lens needs a transparent material. (a) True (b) False
  21. 21.Which of these needs a transparent material? (a) a magnifier lens (b) an oven glove (c) a switch contact (d) a car seat belt
  22. 22.🔍 Which is the odd one out? (a) cotton cloth (b) dry wood (c) copper (d) clay pottery
  23. 23.🧱 Which property matters most for a cooking pot handle? (a) transparent (b) waterproof (c) flexible (d) heat insulator
  24. 24.🧱 Which property matters most for an umbrella cover? (a) transparent (b) electrical conductor (c) heat insulator (d) waterproof
  25. 25.🧱 Which material is best for the bars inside concrete? (a) plastic (b) steel (c) glass (d) rubber
  26. 26.True or false: an oven glove needs a waterproof material. (a) True (b) False
  27. 27.True or false: an umbrella cover needs a waterproof material. (a) False (b) True
  28. 28.True or false: a car seat belt needs a heat insulator. (a) True (b) False
  29. 29.🧱 Which property matters most for a roof sheet? (a) transparent (b) flexible (c) electrical conductor (d) waterproof
  30. 30.Which of these needs a waterproof material? (a) a cooking pot handle (b) a hair band (c) a tea flask lining (d) an umbrella cover
  31. 31.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
  32. 32.🧱 Which material is best for a raincoat? (a) cotton wool (b) cardboard (c) paper (d) plastic-coated cloth
  33. 33.True or false: an oven glove needs a flexible material. (a) True (b) False
  34. 34.Which of these needs a flexible material? (a) a tea flask lining (b) a spectacle lens (c) a car windscreen (d) a car seat belt
  35. 35.🔍 Which is the odd one out? (a) plastic (b) steel (c) brass (d) iron
  36. 36.Which of these needs a heat insulator? (a) a water tank (b) a switch contact (c) a cooking pot handle (d) a hair band
  37. 37.🧱 Which material is best for a window pane? (a) wood (b) brick (c) steel (d) glass
  38. 38.🧱 Which property matters most for a tea flask lining? (a) heat insulator (b) transparent (c) flexible (d) electrical conductor
  39. 39.🧱 Is brass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  40. 40.True or false: a skipping rope needs a flexible material. (a) False (b) True

Answer key

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

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