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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 826 · 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 window pane? (a) electrical conductor (b) transparent (c) heat insulator (d) flexible
  2. 2.True or false: a yoga mat needs a transparent material. (a) True (b) False
  3. 3.🧱 Is dry wood an electrical conductor or an insulator? (a) an insulator (b) a conductor
  4. 4.🔍 Which is the odd one out? (a) glass (b) cotton cloth (c) plastic (d) aluminium
  5. 5.🔍 Which is the odd one out? (a) iron (b) aluminium (c) clay pottery (d) copper
  6. 6.True or false: the core of a wire needs an electrical conductor. (a) True (b) False
  7. 7.Which of these needs a waterproof material? (a) an umbrella cover (b) a car seat belt (c) an oven glove (d) a switch contact
  8. 8.🧱 Which material is best for a raincoat? (a) cotton wool (b) cardboard (c) paper (d) plastic-coated cloth
  9. 9.🧱 Is rubber an electrical conductor or an insulator? (a) an insulator (b) a conductor
  10. 10.🧱 Which property matters most for a hair band? (a) transparent (b) flexible (c) heat insulator (d) waterproof
  11. 11.🧱 Which property matters most for a roof sheet? (a) heat insulator (b) flexible (c) electrical conductor (d) waterproof
  12. 12.🔍 Which is the odd one out? (a) copper (b) steel (c) graphite (d) plastic
  13. 13.True or false: a boat hull needs a waterproof material. (a) True (b) False
  14. 14.🧱 Which property matters most for a raincoat? (a) heat insulator (b) waterproof (c) flexible (d) transparent
  15. 15.🧱 Is clay pottery an electrical conductor or an insulator? (a) a conductor (b) an insulator
  16. 16.🧱 Which material is best for a cooking pot handle? (a) iron (b) copper (c) wood or plastic (d) aluminium
  17. 17.🧱 Is copper an electrical conductor or an insulator? (a) a conductor (b) an insulator
  18. 18.Which of these needs a transparent material? (a) a spectacle lens (b) a water tank (c) a tea flask lining (d) a plug pin
  19. 19.🧱 Is graphite an electrical conductor or an insulator? (a) an insulator (b) a conductor
  20. 20.Which of these needs a heat insulator? (a) the core of a wire (b) a tea flask lining (c) a raincoat (d) a skipping rope
  21. 21.🔍 Which is the odd one out? (a) plastic (b) clay pottery (c) rubber (d) iron
  22. 22.True or false: a water tank needs a waterproof material. (a) False (b) True
  23. 23.🔍 Which is the odd one out? (a) iron (b) brass (c) glass (d) graphite
  24. 24.🧱 Which property matters most for the core of a wire? (a) flexible (b) transparent (c) waterproof (d) electrical conductor
  25. 25.🧱 Which property matters most for an oven glove? (a) transparent (b) waterproof (c) flexible (d) heat insulator
  26. 26.True or false: an oven glove needs a heat insulator. (a) False (b) True
  27. 27.🔍 Which is the odd one out? (a) iron (b) rubber (c) copper (d) brass
  28. 28.🧱 Which property matters most for a yoga mat? (a) waterproof (b) flexible (c) heat insulator (d) transparent
  29. 29.🧱 Which property matters most for a switch contact? (a) waterproof (b) electrical conductor (c) flexible (d) heat insulator
  30. 30.True or false: a magnifier lens needs a waterproof material. (a) True (b) False
  31. 31.Which of these needs a waterproof material? (a) a hair band (b) a boat hull (c) a skipping rope (d) a car windscreen
  32. 32.🔍 Which is the odd one out? (a) glass (b) cotton cloth (c) brass (d) dry wood
  33. 33.🧱 Is brass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  34. 34.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
  35. 35.True or false: a skipping rope needs an electrical conductor. (a) True (b) False
  36. 36.🧱 Which property matters most for a tea flask lining? (a) transparent (b) flexible (c) heat insulator (d) electrical conductor
  37. 37.🔍 Which is the odd one out? (a) graphite (b) copper (c) dry wood (d) brass
  38. 38.Which of these needs a waterproof material? (a) a switch contact (b) a magnifier lens (c) a raincoat (d) a plug pin
  39. 39.🧱 Which material is best for the core of an electric wire? (a) copper (b) rubber (c) wood (d) glass
  40. 40.🧱 Which material is best for a window pane? (a) wood (b) glass (c) brick (d) steel

Answer key

  1. transparent
  2. False
  3. an insulator
  4. aluminium
  5. clay pottery
  6. True
  7. an umbrella cover
  8. plastic-coated cloth
  9. an insulator
  10. flexible
  11. waterproof
  12. plastic
  13. True
  14. waterproof
  15. an insulator
  16. wood or plastic
  17. a conductor
  18. a spectacle lens
  19. a conductor
  20. a tea flask lining
  21. iron
  22. True
  23. glass
  24. electrical conductor
  25. heat insulator
  26. True
  27. rubber
  28. flexible
  29. electrical conductor
  30. False
  31. a boat hull
  32. brass
  33. a conductor
  34. a conductor
  35. False
  36. heat insulator
  37. dry wood
  38. a raincoat
  39. copper
  40. glass

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