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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 328 · 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.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
  2. 2.Which of these needs a waterproof material? (a) a yoga mat (b) a window pane (c) an umbrella cover (d) a skipping rope
  3. 3.🔍 Which is the odd one out? (a) copper (b) rubber (c) cotton cloth (d) glass
  4. 4.🔍 Which is the odd one out? (a) glass (b) iron (c) clay pottery (d) cotton cloth
  5. 5.Which of these needs a heat insulator? (a) a magnifier lens (b) a roof sheet (c) a cooking pot handle (d) a raincoat
  6. 6.Which of these needs an electrical conductor? (a) an umbrella cover (b) a skipping rope (c) a roof sheet (d) a switch contact
  7. 7.🧱 Which property matters most for a tea flask lining? (a) waterproof (b) transparent (c) flexible (d) heat insulator
  8. 8.Which of these needs a transparent material? (a) a plug pin (b) a magnifier lens (c) a hair band (d) a skipping rope
  9. 9.Which of these needs a flexible material? (a) a car windscreen (b) a hair band (c) a raincoat (d) a window pane
  10. 10.🧱 Which property matters most for a car windscreen? (a) heat insulator (b) flexible (c) electrical conductor (d) transparent
  11. 11.🧱 Which material is best for a raincoat? (a) paper (b) plastic-coated cloth (c) cardboard (d) cotton wool
  12. 12.🧱 Which material is best for the bars inside concrete? (a) plastic (b) glass (c) rubber (d) steel
  13. 13.🧱 Which property matters most for a spectacle lens? (a) flexible (b) heat insulator (c) transparent (d) electrical conductor
  14. 14.🧱 Which material is best for a cooking pot handle? (a) wood or plastic (b) aluminium (c) iron (d) copper
  15. 15.True or false: an oven glove needs a flexible material. (a) True (b) False
  16. 16.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  17. 17.True or false: a hair band needs a waterproof material. (a) True (b) False
  18. 18.🧱 Which property matters most for a water tank? (a) heat insulator (b) electrical conductor (c) transparent (d) waterproof
  19. 19.🔍 Which is the odd one out? (a) clay pottery (b) cotton cloth (c) glass (d) brass
  20. 20.🔍 Which is the odd one out? (a) dry wood (b) steel (c) aluminium (d) copper
  21. 21.True or false: a car windscreen needs a transparent material. (a) True (b) False
  22. 22.🧱 Is brass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  23. 23.🧱 Which property matters most for the core of a wire? (a) heat insulator (b) electrical conductor (c) waterproof (d) flexible
  24. 24.🧱 Is clay pottery an electrical conductor or an insulator? (a) an insulator (b) a conductor
  25. 25.🧱 Which property matters most for an oven glove? (a) flexible (b) waterproof (c) heat insulator (d) transparent
  26. 26.True or false: a water tank needs a heat insulator. (a) False (b) True
  27. 27.True or false: a plug pin needs an electrical conductor. (a) False (b) True
  28. 28.🧱 Which property matters most for a switch contact? (a) waterproof (b) flexible (c) heat insulator (d) electrical conductor
  29. 29.True or false: a cooking pot handle needs a heat insulator. (a) False (b) True
  30. 30.🔍 Which is the odd one out? (a) iron (b) rubber (c) aluminium (d) copper
  31. 31.True or false: a magnifier lens needs a transparent material. (a) False (b) True
  32. 32.True or false: a water tank needs a transparent material. (a) True (b) False
  33. 33.🧱 Which property matters most for a boat hull? (a) flexible (b) waterproof (c) transparent (d) heat insulator
  34. 34.🔍 Which is the odd one out? (a) copper (b) graphite (c) clay pottery (d) steel
  35. 35.Which of these needs a heat insulator? (a) a boat hull (b) an oven glove (c) a magnifier lens (d) an umbrella cover
  36. 36.🧱 Which property matters most for a magnifier lens? (a) electrical conductor (b) flexible (c) transparent (d) waterproof
  37. 37.🧱 Which property matters most for a yoga mat? (a) electrical conductor (b) transparent (c) flexible (d) waterproof
  38. 38.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  39. 39.🔍 Which is the odd one out? (a) cotton cloth (b) rubber (c) dry wood (d) graphite
  40. 40.🔍 Which is the odd one out? (a) copper (b) graphite (c) cotton cloth (d) brass

Answer key

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

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