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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 109 · 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 tea flask lining needs a waterproof material. (a) False (b) True
  2. 2.True or false: a plug pin needs an electrical conductor. (a) False (b) True
  3. 3.🧱 Which material is best for the core of an electric wire? (a) rubber (b) glass (c) wood (d) copper
  4. 4.Which of these needs a waterproof material? (a) a cooking pot handle (b) a water tank (c) a window pane (d) an oven glove
  5. 5.🔍 Which is the odd one out? (a) brass (b) iron (c) steel (d) cotton cloth
  6. 6.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  7. 7.True or false: a spectacle lens needs a transparent material. (a) True (b) False
  8. 8.True or false: the core of a wire needs an electrical conductor. (a) True (b) False
  9. 9.🧱 Which property matters most for a raincoat? (a) heat insulator (b) flexible (c) waterproof (d) electrical conductor
  10. 10.🧱 Which material is best for a raincoat? (a) plastic-coated cloth (b) cotton wool (c) paper (d) cardboard
  11. 11.True or false: the core of a wire needs a transparent material. (a) True (b) False
  12. 12.🔍 Which is the odd one out? (a) glass (b) brass (c) steel (d) aluminium
  13. 13.Which of these needs an electrical conductor? (a) the core of a wire (b) a magnifier lens (c) a raincoat (d) a yoga mat
  14. 14.🔍 Which is the odd one out? (a) dry wood (b) rubber (c) clay pottery (d) steel
  15. 15.🧱 Is cotton cloth an electrical conductor or an insulator? (a) an insulator (b) a conductor
  16. 16.🧱 Which material is best for a cooking pot handle? (a) aluminium (b) copper (c) wood or plastic (d) iron
  17. 17.🧱 Which property matters most for an umbrella cover? (a) electrical conductor (b) flexible (c) heat insulator (d) waterproof
  18. 18.True or false: a roof sheet needs a waterproof material. (a) True (b) False
  19. 19.🧱 Is plastic an electrical conductor or an insulator? (a) an insulator (b) a conductor
  20. 20.True or false: a window pane needs a transparent material. (a) False (b) True
  21. 21.🧱 Which property matters most for a plug pin? (a) electrical conductor (b) flexible (c) transparent (d) heat insulator
  22. 22.🧱 Which property matters most for a window pane? (a) heat insulator (b) transparent (c) waterproof (d) electrical conductor
  23. 23.True or false: a car windscreen needs a waterproof material. (a) True (b) False
  24. 24.True or false: a magnifier lens needs a flexible material. (a) False (b) True
  25. 25.Which of these needs a transparent material? (a) an oven glove (b) a spectacle lens (c) a cooking pot handle (d) a tea flask lining
  26. 26.🧱 Is graphite an electrical conductor or an insulator? (a) a conductor (b) an insulator
  27. 27.Which of these needs a waterproof material? (a) a tea flask lining (b) a roof sheet (c) a magnifier lens (d) a skipping rope
  28. 28.Which of these needs a heat insulator? (a) a tea flask lining (b) a magnifier lens (c) a raincoat (d) a car windscreen
  29. 29.🧱 Which property matters most for a skipping rope? (a) heat insulator (b) electrical conductor (c) waterproof (d) flexible
  30. 30.🧱 Which material is best for a window pane? (a) glass (b) steel (c) wood (d) brick
  31. 31.True or false: a roof sheet needs a flexible material. (a) True (b) False
  32. 32.Which of these needs a flexible material? (a) a plug pin (b) a raincoat (c) a window pane (d) a skipping rope
  33. 33.🧱 Which property matters most for a water tank? (a) waterproof (b) flexible (c) electrical conductor (d) transparent
  34. 34.🧱 Which property matters most for the core of a wire? (a) transparent (b) heat insulator (c) flexible (d) electrical conductor
  35. 35.Which of these needs an electrical conductor? (a) a raincoat (b) a plug pin (c) a skipping rope (d) an umbrella cover
  36. 36.Which of these needs a waterproof material? (a) a car windscreen (b) a yoga mat (c) a window pane (d) a raincoat
  37. 37.True or false: a skipping rope needs a flexible material. (a) True (b) False
  38. 38.🔍 Which is the odd one out? (a) plastic (b) copper (c) cotton cloth (d) clay pottery
  39. 39.Which of these needs a heat insulator? (a) a magnifier lens (b) a raincoat (c) a car seat belt (d) an oven glove
  40. 40.🔍 Which is the odd one out? (a) graphite (b) aluminium (c) brass (d) dry wood

Answer key

  1. False
  2. True
  3. copper
  4. a water tank
  5. cotton cloth
  6. a conductor
  7. True
  8. True
  9. waterproof
  10. plastic-coated cloth
  11. False
  12. glass
  13. the core of a wire
  14. steel
  15. an insulator
  16. wood or plastic
  17. waterproof
  18. True
  19. an insulator
  20. True
  21. electrical conductor
  22. transparent
  23. False
  24. False
  25. a spectacle lens
  26. a conductor
  27. a roof sheet
  28. a tea flask lining
  29. flexible
  30. glass
  31. False
  32. a skipping rope
  33. waterproof
  34. electrical conductor
  35. a plug pin
  36. a raincoat
  37. True
  38. copper
  39. an oven glove
  40. dry wood

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