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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 262 · 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 of these needs a heat insulator? (a) a yoga mat (b) a raincoat (c) a tea flask lining (d) a window pane
  2. 2.🔍 Which is the odd one out? (a) copper (b) clay pottery (c) graphite (d) iron
  3. 3.Which of these needs a waterproof material? (a) a spectacle lens (b) a skipping rope (c) a car seat belt (d) a roof sheet
  4. 4.🔍 Which is the odd one out? (a) glass (b) rubber (c) cotton cloth (d) steel
  5. 5.True or false: a skipping rope needs a waterproof material. (a) True (b) False
  6. 6.Which of these needs a waterproof material? (a) a plug pin (b) an umbrella cover (c) the core of a wire (d) a skipping rope
  7. 7.True or false: a raincoat needs a flexible material. (a) True (b) False
  8. 8.🧱 Is cotton cloth an electrical conductor or an insulator? (a) an insulator (b) a conductor
  9. 9.🧱 Which property matters most for a cooking pot handle? (a) flexible (b) heat insulator (c) electrical conductor (d) waterproof
  10. 10.🧱 Which material is best for the core of an electric wire? (a) glass (b) rubber (c) copper (d) wood
  11. 11.🧱 Is brass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  12. 12.True or false: an umbrella cover needs a transparent material. (a) True (b) False
  13. 13.🔍 Which is the odd one out? (a) rubber (b) glass (c) clay pottery (d) graphite
  14. 14.🧱 Which property matters most for a raincoat? (a) flexible (b) heat insulator (c) waterproof (d) electrical conductor
  15. 15.Which of these needs a flexible material? (a) a yoga mat (b) a tea flask lining (c) an oven glove (d) a boat hull
  16. 16.🔍 Which is the odd one out? (a) steel (b) brass (c) rubber (d) graphite
  17. 17.🧱 Which material is best for the bars inside concrete? (a) glass (b) rubber (c) steel (d) plastic
  18. 18.True or false: a boat hull needs a waterproof material. (a) True (b) False
  19. 19.🧱 Is glass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  20. 20.🧱 Which property matters most for a yoga mat? (a) flexible (b) heat insulator (c) transparent (d) waterproof
  21. 21.🧱 Which material is best for a raincoat? (a) cotton wool (b) paper (c) cardboard (d) plastic-coated cloth
  22. 22.Which of these needs a flexible material? (a) a skipping rope (b) the core of a wire (c) an umbrella cover (d) an oven glove
  23. 23.🔍 Which is the odd one out? (a) cotton cloth (b) rubber (c) aluminium (d) dry wood
  24. 24.🧱 Which property matters most for a spectacle lens? (a) flexible (b) waterproof (c) transparent (d) electrical conductor
  25. 25.🧱 Which property matters most for a car seat belt? (a) transparent (b) waterproof (c) flexible (d) electrical conductor
  26. 26.Which of these needs a transparent material? (a) a magnifier lens (b) a yoga mat (c) a cooking pot handle (d) a boat hull
  27. 27.🧱 Which material is best for a cooking pot handle? (a) copper (b) wood or plastic (c) aluminium (d) iron
  28. 28.🧱 Which property matters most for a roof sheet? (a) flexible (b) transparent (c) waterproof (d) heat insulator
  29. 29.Which of these needs a heat insulator? (a) an oven glove (b) a plug pin (c) a switch contact (d) a skipping rope
  30. 30.True or false: an umbrella cover needs a waterproof material. (a) True (b) False
  31. 31.🔍 Which is the odd one out? (a) brass (b) dry wood (c) aluminium (d) copper
  32. 32.🧱 Is rubber an electrical conductor or an insulator? (a) a conductor (b) an insulator
  33. 33.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  34. 34.🧱 Which property matters most for a car windscreen? (a) flexible (b) transparent (c) electrical conductor (d) heat insulator
  35. 35.True or false: a tea flask lining needs a heat insulator. (a) True (b) False
  36. 36.Which of these needs a waterproof material? (a) a car seat belt (b) a car windscreen (c) a raincoat (d) a hair band
  37. 37.🧱 Which property matters most for a boat hull? (a) transparent (b) flexible (c) heat insulator (d) waterproof
  38. 38.🧱 Is graphite an electrical conductor or an insulator? (a) an insulator (b) a conductor
  39. 39.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
  40. 40.🧱 Which property matters most for an oven glove? (a) flexible (b) heat insulator (c) waterproof (d) electrical conductor

Answer key

  1. a tea flask lining
  2. clay pottery
  3. a roof sheet
  4. steel
  5. False
  6. an umbrella cover
  7. False
  8. an insulator
  9. heat insulator
  10. copper
  11. a conductor
  12. False
  13. graphite
  14. waterproof
  15. a yoga mat
  16. rubber
  17. steel
  18. True
  19. an insulator
  20. flexible
  21. plastic-coated cloth
  22. a skipping rope
  23. aluminium
  24. transparent
  25. flexible
  26. a magnifier lens
  27. wood or plastic
  28. waterproof
  29. an oven glove
  30. True
  31. dry wood
  32. an insulator
  33. a conductor
  34. transparent
  35. True
  36. a raincoat
  37. waterproof
  38. a conductor
  39. a conductor
  40. heat insulator

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