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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 191 · 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 hair band? (a) waterproof (b) electrical conductor (c) transparent (d) flexible
  2. 2.🧱 Is rubber an electrical conductor or an insulator? (a) an insulator (b) a conductor
  3. 3.Which of these needs an electrical conductor? (a) a tea flask lining (b) a cooking pot handle (c) a switch contact (d) a water tank
  4. 4.🧱 Which property matters most for a window pane? (a) flexible (b) heat insulator (c) transparent (d) waterproof
  5. 5.Which of these needs a heat insulator? (a) a cooking pot handle (b) a boat hull (c) a yoga mat (d) a water tank
  6. 6.🧱 Is brass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  7. 7.🔍 Which is the odd one out? (a) aluminium (b) copper (c) rubber (d) steel
  8. 8.Which of these needs a heat insulator? (a) the core of a wire (b) an umbrella cover (c) a boat hull (d) an oven glove
  9. 9.Which of these needs a transparent material? (a) a yoga mat (b) a magnifier lens (c) an umbrella cover (d) a raincoat
  10. 10.Which of these needs a heat insulator? (a) the core of a wire (b) a tea flask lining (c) a raincoat (d) a window pane
  11. 11.True or false: a car seat belt needs a transparent material. (a) False (b) True
  12. 12.True or false: a plug pin needs an electrical conductor. (a) True (b) False
  13. 13.True or false: an umbrella cover needs a flexible material. (a) False (b) True
  14. 14.Which of these needs a transparent material? (a) a cooking pot handle (b) a car seat belt (c) an oven glove (d) a car windscreen
  15. 15.🧱 Which property matters most for a water tank? (a) flexible (b) heat insulator (c) waterproof (d) electrical conductor
  16. 16.🧱 Which material is best for a cooking pot handle? (a) iron (b) copper (c) wood or plastic (d) aluminium
  17. 17.🧱 Which material is best for the core of an electric wire? (a) copper (b) glass (c) rubber (d) wood
  18. 18.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  19. 19.🧱 Which property matters most for a raincoat? (a) heat insulator (b) flexible (c) waterproof (d) electrical conductor
  20. 20.True or false: a spectacle lens needs an electrical conductor. (a) False (b) True
  21. 21.🔍 Which is the odd one out? (a) graphite (b) aluminium (c) copper (d) plastic
  22. 22.🔍 Which is the odd one out? (a) graphite (b) plastic (c) glass (d) cotton cloth
  23. 23.Which of these needs a waterproof material? (a) an oven glove (b) a magnifier lens (c) a raincoat (d) a spectacle lens
  24. 24.🧱 Is cotton cloth an electrical conductor or an insulator? (a) an insulator (b) a conductor
  25. 25.🧱 Is glass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  26. 26.Which of these needs an electrical conductor? (a) a window pane (b) a plug pin (c) a tea flask lining (d) a roof sheet
  27. 27.🔍 Which is the odd one out? (a) steel (b) cotton cloth (c) graphite (d) iron
  28. 28.🔍 Which is the odd one out? (a) iron (b) copper (c) aluminium (d) dry wood
  29. 29.🧱 Which material is best for a raincoat? (a) plastic-coated cloth (b) cardboard (c) cotton wool (d) paper
  30. 30.🧱 Which property matters most for a cooking pot handle? (a) electrical conductor (b) transparent (c) heat insulator (d) waterproof
  31. 31.🧱 Which property matters most for a roof sheet? (a) transparent (b) heat insulator (c) waterproof (d) flexible
  32. 32.🧱 Which property matters most for a yoga mat? (a) flexible (b) electrical conductor (c) transparent (d) waterproof
  33. 33.🧱 Which property matters most for a car seat belt? (a) flexible (b) transparent (c) waterproof (d) heat insulator
  34. 34.Which of these needs a waterproof material? (a) a tea flask lining (b) an umbrella cover (c) a yoga mat (d) a spectacle lens
  35. 35.🧱 Which property matters most for a boat hull? (a) heat insulator (b) transparent (c) electrical conductor (d) waterproof
  36. 36.Which of these needs a flexible material? (a) a switch contact (b) a water tank (c) a hair band (d) a plug pin
  37. 37.True or false: a roof sheet needs an electrical conductor. (a) True (b) False
  38. 38.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  39. 39.True or false: a car windscreen needs a transparent material. (a) True (b) False
  40. 40.🧱 Which material is best for a window pane? (a) wood (b) brick (c) glass (d) steel

Answer key

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

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