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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 994 · 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 property matters most for a car seat belt? (a) flexible (b) electrical conductor (c) waterproof (d) transparent
  2. 2.Which of these needs an electrical conductor? (a) a plug pin (b) a magnifier lens (c) a skipping rope (d) an oven glove
  3. 3.Which of these needs a flexible material? (a) a water tank (b) a hair band (c) a tea flask lining (d) a boat hull
  4. 4.🔍 Which is the odd one out? (a) rubber (b) brass (c) cotton cloth (d) plastic
  5. 5.🧱 Which property matters most for a raincoat? (a) electrical conductor (b) flexible (c) transparent (d) waterproof
  6. 6.True or false: a tea flask lining needs a transparent material. (a) True (b) False
  7. 7.🔍 Which is the odd one out? (a) rubber (b) plastic (c) iron (d) glass
  8. 8.🧱 Which material is best for the core of an electric wire? (a) glass (b) wood (c) copper (d) rubber
  9. 9.Which of these needs an electrical conductor? (a) a hair band (b) a car windscreen (c) a skipping rope (d) a switch contact
  10. 10.🔍 Which is the odd one out? (a) copper (b) clay pottery (c) dry wood (d) cotton cloth
  11. 11.Which of these needs a waterproof material? (a) a hair band (b) a cooking pot handle (c) a boat hull (d) an oven glove
  12. 12.🧱 Which property matters most for a cooking pot handle? (a) waterproof (b) transparent (c) electrical conductor (d) heat insulator
  13. 13.Which of these needs an electrical conductor? (a) a boat hull (b) the core of a wire (c) a spectacle lens (d) a water tank
  14. 14.🧱 Which material is best for a cooking pot handle? (a) copper (b) aluminium (c) wood or plastic (d) iron
  15. 15.🧱 Which property matters most for an oven glove? (a) flexible (b) electrical conductor (c) heat insulator (d) waterproof
  16. 16.🧱 Is copper an electrical conductor or an insulator? (a) a conductor (b) an insulator
  17. 17.🔍 Which is the odd one out? (a) iron (b) aluminium (c) copper (d) rubber
  18. 18.True or false: a plug pin needs a heat insulator. (a) False (b) True
  19. 19.🧱 Is graphite an electrical conductor or an insulator? (a) an insulator (b) a conductor
  20. 20.🔍 Which is the odd one out? (a) graphite (b) aluminium (c) glass (d) copper
  21. 21.🧱 Which property matters most for a plug pin? (a) heat insulator (b) transparent (c) electrical conductor (d) waterproof
  22. 22.True or false: a water tank needs a waterproof material. (a) True (b) False
  23. 23.🔍 Which is the odd one out? (a) plastic (b) graphite (c) glass (d) rubber
  24. 24.🧱 Which material is best for a window pane? (a) brick (b) wood (c) glass (d) steel
  25. 25.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
  26. 26.🧱 Which material is best for the bars inside concrete? (a) glass (b) plastic (c) steel (d) rubber
  27. 27.🧱 Which property matters most for a skipping rope? (a) transparent (b) waterproof (c) heat insulator (d) flexible
  28. 28.🧱 Which property matters most for a yoga mat? (a) flexible (b) heat insulator (c) transparent (d) waterproof
  29. 29.🧱 Which property matters most for a spectacle lens? (a) waterproof (b) transparent (c) electrical conductor (d) heat insulator
  30. 30.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  31. 31.🔍 Which is the odd one out? (a) brass (b) iron (c) cotton cloth (d) copper
  32. 32.True or false: an oven glove needs a heat insulator. (a) False (b) True
  33. 33.🧱 Which property matters most for a boat hull? (a) waterproof (b) flexible (c) transparent (d) electrical conductor
  34. 34.🧱 Which property matters most for an umbrella cover? (a) electrical conductor (b) waterproof (c) flexible (d) heat insulator
  35. 35.True or false: an umbrella cover needs a waterproof material. (a) True (b) False
  36. 36.🧱 Is dry wood an electrical conductor or an insulator? (a) an insulator (b) a conductor
  37. 37.🧱 Which property matters most for a hair band? (a) heat insulator (b) waterproof (c) transparent (d) flexible
  38. 38.🧱 Which material is best for a raincoat? (a) cotton wool (b) plastic-coated cloth (c) cardboard (d) paper
  39. 39.Which of these needs a heat insulator? (a) a skipping rope (b) a yoga mat (c) a car windscreen (d) a cooking pot handle
  40. 40.True or false: an umbrella cover needs an electrical conductor. (a) False (b) True

Answer key

  1. flexible
  2. a plug pin
  3. a hair band
  4. brass
  5. waterproof
  6. False
  7. iron
  8. copper
  9. a switch contact
  10. copper
  11. a boat hull
  12. heat insulator
  13. the core of a wire
  14. wood or plastic
  15. heat insulator
  16. a conductor
  17. rubber
  18. False
  19. a conductor
  20. glass
  21. electrical conductor
  22. True
  23. graphite
  24. glass
  25. an insulator
  26. steel
  27. flexible
  28. flexible
  29. transparent
  30. a conductor
  31. cotton cloth
  32. True
  33. waterproof
  34. waterproof
  35. True
  36. an insulator
  37. flexible
  38. plastic-coated cloth
  39. a cooking pot handle
  40. False

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