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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 518 · 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 an umbrella cover? (a) flexible (b) transparent (c) heat insulator (d) waterproof
  2. 2.🧱 Is rubber an electrical conductor or an insulator? (a) an insulator (b) a conductor
  3. 3.🧱 Which property matters most for a switch contact? (a) transparent (b) electrical conductor (c) flexible (d) waterproof
  4. 4.Which of these needs a flexible material? (a) a plug pin (b) a magnifier lens (c) a tea flask lining (d) a yoga mat
  5. 5.True or false: a raincoat needs a waterproof material. (a) True (b) False
  6. 6.True or false: a car seat belt needs a flexible material. (a) False (b) True
  7. 7.🧱 Which property matters most for a cooking pot handle? (a) flexible (b) waterproof (c) heat insulator (d) electrical conductor
  8. 8.True or false: a magnifier lens needs a flexible material. (a) True (b) False
  9. 9.True or false: an oven glove needs a heat insulator. (a) False (b) True
  10. 10.Which of these needs an electrical conductor? (a) a skipping rope (b) an oven glove (c) a switch contact (d) a cooking pot handle
  11. 11.Which of these needs an electrical conductor? (a) an oven glove (b) a plug pin (c) a spectacle lens (d) a cooking pot handle
  12. 12.Which of these needs a waterproof material? (a) a water tank (b) a window pane (c) a magnifier lens (d) a car seat belt
  13. 13.Which of these needs a flexible material? (a) a spectacle lens (b) a car seat belt (c) a plug pin (d) a raincoat
  14. 14.Which of these needs a transparent material? (a) a window pane (b) a skipping rope (c) a plug pin (d) a raincoat
  15. 15.🧱 Which material is best for a cooking pot handle? (a) copper (b) aluminium (c) iron (d) wood or plastic
  16. 16.🧱 Which property matters most for a water tank? (a) electrical conductor (b) flexible (c) waterproof (d) heat insulator
  17. 17.🧱 Which property matters most for a window pane? (a) flexible (b) waterproof (c) heat insulator (d) transparent
  18. 18.🧱 Which property matters most for a raincoat? (a) flexible (b) heat insulator (c) transparent (d) waterproof
  19. 19.🧱 Is clay pottery an electrical conductor or an insulator? (a) a conductor (b) an insulator
  20. 20.🧱 Which property matters most for a plug pin? (a) transparent (b) electrical conductor (c) waterproof (d) flexible
  21. 21.🧱 Which material is best for a raincoat? (a) cardboard (b) cotton wool (c) plastic-coated cloth (d) paper
  22. 22.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
  23. 23.🔍 Which is the odd one out? (a) iron (b) dry wood (c) aluminium (d) copper
  24. 24.🧱 Which property matters most for the core of a wire? (a) flexible (b) electrical conductor (c) transparent (d) waterproof
  25. 25.Which of these needs a heat insulator? (a) a cooking pot handle (b) a skipping rope (c) a water tank (d) a raincoat
  26. 26.🧱 Which property matters most for a skipping rope? (a) heat insulator (b) waterproof (c) electrical conductor (d) flexible
  27. 27.True or false: the core of a wire needs an electrical conductor. (a) False (b) True
  28. 28.🔍 Which is the odd one out? (a) steel (b) cotton cloth (c) clay pottery (d) rubber
  29. 29.🧱 Which property matters most for a magnifier lens? (a) waterproof (b) transparent (c) electrical conductor (d) heat insulator
  30. 30.🧱 Which property matters most for a boat hull? (a) waterproof (b) electrical conductor (c) flexible (d) heat insulator
  31. 31.🧱 Which property matters most for an oven glove? (a) waterproof (b) transparent (c) flexible (d) heat insulator
  32. 32.🔍 Which is the odd one out? (a) brass (b) copper (c) steel (d) plastic
  33. 33.Which of these needs a transparent material? (a) an oven glove (b) a boat hull (c) an umbrella cover (d) a spectacle lens
  34. 34.🔍 Which is the odd one out? (a) iron (b) graphite (c) cotton cloth (d) aluminium
  35. 35.🧱 Is cotton cloth an electrical conductor or an insulator? (a) a conductor (b) an insulator
  36. 36.Which of these needs a heat insulator? (a) a skipping rope (b) a tea flask lining (c) a boat hull (d) a yoga mat
  37. 37.True or false: a spectacle lens needs a transparent material. (a) False (b) True
  38. 38.🧱 Which property matters most for a roof sheet? (a) transparent (b) waterproof (c) electrical conductor (d) heat insulator
  39. 39.🧱 Which material is best for the core of an electric wire? (a) copper (b) glass (c) wood (d) rubber
  40. 40.🔍 Which is the odd one out? (a) clay pottery (b) graphite (c) copper (d) steel

Answer key

  1. waterproof
  2. an insulator
  3. electrical conductor
  4. a yoga mat
  5. True
  6. True
  7. heat insulator
  8. False
  9. True
  10. a switch contact
  11. a plug pin
  12. a water tank
  13. a car seat belt
  14. a window pane
  15. wood or plastic
  16. waterproof
  17. transparent
  18. waterproof
  19. an insulator
  20. electrical conductor
  21. plastic-coated cloth
  22. an insulator
  23. dry wood
  24. electrical conductor
  25. a cooking pot handle
  26. flexible
  27. True
  28. steel
  29. transparent
  30. waterproof
  31. heat insulator
  32. plastic
  33. a spectacle lens
  34. cotton cloth
  35. an insulator
  36. a tea flask lining
  37. True
  38. waterproof
  39. copper
  40. clay pottery

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