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Engineering Worksheet: Materials

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

Answer key

  1. False
  2. a hair band
  3. a car windscreen
  4. a car seat belt
  5. a window pane
  6. waterproof
  7. wood or plastic
  8. copper
  9. an insulator
  10. transparent
  11. rubber
  12. steel
  13. False
  14. False
  15. waterproof
  16. a plug pin
  17. True
  18. plastic-coated cloth
  19. an oven glove
  20. electrical conductor
  21. a conductor
  22. transparent
  23. an insulator
  24. a tea flask lining
  25. transparent
  26. flexible
  27. glass
  28. a cooking pot handle
  29. True
  30. iron
  31. waterproof
  32. a boat hull
  33. copper
  34. heat insulator
  35. True
  36. a conductor
  37. False
  38. a roof sheet
  39. flexible
  40. a conductor

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