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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 538 · 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 magnifier lens? (a) heat insulator (b) waterproof (c) electrical conductor (d) transparent
  2. 2.🧱 Which material is best for the core of an electric wire? (a) rubber (b) wood (c) glass (d) copper
  3. 3.🧱 Which property matters most for the core of a wire? (a) transparent (b) heat insulator (c) electrical conductor (d) waterproof
  4. 4.🔍 Which is the odd one out? (a) plastic (b) copper (c) dry wood (d) rubber
  5. 5.Which of these needs an electrical conductor? (a) a car seat belt (b) a cooking pot handle (c) a yoga mat (d) a plug pin
  6. 6.🧱 Which material is best for a cooking pot handle? (a) aluminium (b) copper (c) wood or plastic (d) iron
  7. 7.🧱 Which material is best for the bars inside concrete? (a) glass (b) plastic (c) rubber (d) steel
  8. 8.🧱 Which material is best for a raincoat? (a) cardboard (b) cotton wool (c) paper (d) plastic-coated cloth
  9. 9.🧱 Which property matters most for a roof sheet? (a) electrical conductor (b) waterproof (c) transparent (d) heat insulator
  10. 10.🔍 Which is the odd one out? (a) clay pottery (b) cotton cloth (c) iron (d) glass
  11. 11.🧱 Which property matters most for a water tank? (a) transparent (b) flexible (c) waterproof (d) heat insulator
  12. 12.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
  13. 13.🧱 Is cotton cloth an electrical conductor or an insulator? (a) a conductor (b) an insulator
  14. 14.Which of these needs a heat insulator? (a) a car seat belt (b) an oven glove (c) a roof sheet (d) a plug pin
  15. 15.🔍 Which is the odd one out? (a) copper (b) glass (c) iron (d) graphite
  16. 16.True or false: a plug pin needs an electrical conductor. (a) True (b) False
  17. 17.Which of these needs an electrical conductor? (a) a water tank (b) a skipping rope (c) the core of a wire (d) an umbrella cover
  18. 18.True or false: a boat hull needs a waterproof material. (a) False (b) True
  19. 19.True or false: a water tank needs a waterproof material. (a) True (b) False
  20. 20.🧱 Which property matters most for a skipping rope? (a) waterproof (b) transparent (c) flexible (d) electrical conductor
  21. 21.🧱 Which property matters most for a raincoat? (a) heat insulator (b) electrical conductor (c) waterproof (d) flexible
  22. 22.True or false: a roof sheet needs a waterproof material. (a) True (b) False
  23. 23.True or false: a raincoat needs a waterproof material. (a) True (b) False
  24. 24.🧱 Is rubber an electrical conductor or an insulator? (a) a conductor (b) an insulator
  25. 25.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  26. 26.🔍 Which is the odd one out? (a) brass (b) iron (c) plastic (d) copper
  27. 27.🧱 Is clay pottery an electrical conductor or an insulator? (a) an insulator (b) a conductor
  28. 28.🔍 Which is the odd one out? (a) cotton cloth (b) glass (c) graphite (d) plastic
  29. 29.🧱 Which property matters most for an oven glove? (a) transparent (b) electrical conductor (c) heat insulator (d) waterproof
  30. 30.Which of these needs a transparent material? (a) a boat hull (b) the core of a wire (c) a magnifier lens (d) a hair band
  31. 31.🧱 Which property matters most for a plug pin? (a) transparent (b) heat insulator (c) electrical conductor (d) flexible
  32. 32.Which of these needs a transparent material? (a) a window pane (b) a cooking pot handle (c) an umbrella cover (d) a switch contact
  33. 33.🧱 Which property matters most for a cooking pot handle? (a) flexible (b) waterproof (c) electrical conductor (d) heat insulator
  34. 34.🧱 Which property matters most for a car windscreen? (a) flexible (b) electrical conductor (c) waterproof (d) transparent
  35. 35.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  36. 36.Which of these needs a transparent material? (a) a spectacle lens (b) a water tank (c) a switch contact (d) a plug pin
  37. 37.True or false: a skipping rope needs a transparent material. (a) True (b) False
  38. 38.🧱 Which property matters most for a boat hull? (a) heat insulator (b) flexible (c) waterproof (d) transparent
  39. 39.🧱 Which property matters most for an umbrella cover? (a) heat insulator (b) waterproof (c) flexible (d) electrical conductor
  40. 40.Which of these needs a waterproof material? (a) a cooking pot handle (b) a car seat belt (c) an umbrella cover (d) a plug pin

Answer key

  1. transparent
  2. copper
  3. electrical conductor
  4. copper
  5. a plug pin
  6. wood or plastic
  7. steel
  8. plastic-coated cloth
  9. waterproof
  10. iron
  11. waterproof
  12. a conductor
  13. an insulator
  14. an oven glove
  15. glass
  16. True
  17. the core of a wire
  18. True
  19. True
  20. flexible
  21. waterproof
  22. True
  23. True
  24. an insulator
  25. a conductor
  26. plastic
  27. an insulator
  28. graphite
  29. heat insulator
  30. a magnifier lens
  31. electrical conductor
  32. a window pane
  33. heat insulator
  34. transparent
  35. a conductor
  36. a spectacle lens
  37. False
  38. waterproof
  39. waterproof
  40. an umbrella cover

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