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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 297 · 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 clay pottery an electrical conductor or an insulator? (a) a conductor (b) an insulator
  2. 2.🧱 Which property matters most for a raincoat? (a) flexible (b) transparent (c) waterproof (d) electrical conductor
  3. 3.True or false: a yoga mat needs an electrical conductor. (a) False (b) True
  4. 4.🔍 Which is the odd one out? (a) aluminium (b) iron (c) graphite (d) plastic
  5. 5.🧱 Which material is best for the bars inside concrete? (a) rubber (b) steel (c) glass (d) plastic
  6. 6.True or false: an umbrella cover needs a waterproof material. (a) True (b) False
  7. 7.🧱 Which property matters most for a spectacle lens? (a) electrical conductor (b) transparent (c) heat insulator (d) flexible
  8. 8.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  9. 9.Which of these needs a heat insulator? (a) an umbrella cover (b) a tea flask lining (c) a window pane (d) a yoga mat
  10. 10.🔍 Which is the odd one out? (a) plastic (b) cotton cloth (c) rubber (d) aluminium
  11. 11.True or false: a boat hull needs a heat insulator. (a) True (b) False
  12. 12.Which of these needs a flexible material? (a) a cooking pot handle (b) a hair band (c) a car windscreen (d) a water tank
  13. 13.True or false: the core of a wire needs a waterproof material. (a) True (b) False
  14. 14.🔍 Which is the odd one out? (a) graphite (b) rubber (c) iron (d) brass
  15. 15.Which of these needs an electrical conductor? (a) a window pane (b) a raincoat (c) a switch contact (d) an umbrella cover
  16. 16.🧱 Which material is best for a window pane? (a) brick (b) glass (c) steel (d) wood
  17. 17.🧱 Is rubber an electrical conductor or an insulator? (a) a conductor (b) an insulator
  18. 18.True or false: a boat hull needs a waterproof material. (a) True (b) False
  19. 19.🔍 Which is the odd one out? (a) glass (b) brass (c) copper (d) graphite
  20. 20.🔍 Which is the odd one out? (a) iron (b) brass (c) copper (d) clay pottery
  21. 21.🧱 Is cotton cloth an electrical conductor or an insulator? (a) a conductor (b) an insulator
  22. 22.True or false: a roof sheet needs a waterproof material. (a) False (b) True
  23. 23.🧱 Which property matters most for a car seat belt? (a) heat insulator (b) transparent (c) waterproof (d) flexible
  24. 24.Which of these needs a heat insulator? (a) the core of a wire (b) a spectacle lens (c) a cooking pot handle (d) an umbrella cover
  25. 25.True or false: a skipping rope needs a flexible material. (a) False (b) True
  26. 26.True or false: a water tank needs a waterproof material. (a) True (b) False
  27. 27.Which of these needs a waterproof material? (a) a spectacle lens (b) a raincoat (c) a car seat belt (d) a switch contact
  28. 28.🧱 Which property matters most for a yoga mat? (a) electrical conductor (b) flexible (c) waterproof (d) transparent
  29. 29.Which of these needs a flexible material? (a) a yoga mat (b) an oven glove (c) a water tank (d) a spectacle lens
  30. 30.🔍 Which is the odd one out? (a) brass (b) iron (c) cotton cloth (d) copper
  31. 31.🧱 Which property matters most for a roof sheet? (a) flexible (b) transparent (c) waterproof (d) electrical conductor
  32. 32.Which of these needs a flexible material? (a) an umbrella cover (b) a plug pin (c) a car seat belt (d) a spectacle lens
  33. 33.🧱 Which property matters most for a switch contact? (a) transparent (b) waterproof (c) electrical conductor (d) heat insulator
  34. 34.🧱 Is copper an electrical conductor or an insulator? (a) a conductor (b) an insulator
  35. 35.True or false: an oven glove needs a waterproof material. (a) True (b) False
  36. 36.True or false: a tea flask lining needs an electrical conductor. (a) False (b) True
  37. 37.True or false: the core of a wire needs an electrical conductor. (a) False (b) True
  38. 38.Which of these needs a waterproof material? (a) a water tank (b) a magnifier lens (c) a plug pin (d) a window pane
  39. 39.True or false: a magnifier lens needs a flexible material. (a) False (b) True
  40. 40.True or false: a car seat belt needs a heat insulator. (a) False (b) True

Answer key

  1. an insulator
  2. waterproof
  3. False
  4. plastic
  5. steel
  6. True
  7. transparent
  8. a conductor
  9. a tea flask lining
  10. aluminium
  11. False
  12. a hair band
  13. False
  14. rubber
  15. a switch contact
  16. glass
  17. an insulator
  18. True
  19. glass
  20. clay pottery
  21. an insulator
  22. True
  23. flexible
  24. a cooking pot handle
  25. True
  26. True
  27. a raincoat
  28. flexible
  29. a yoga mat
  30. cotton cloth
  31. waterproof
  32. a car seat belt
  33. electrical conductor
  34. a conductor
  35. False
  36. False
  37. True
  38. a water tank
  39. False
  40. False

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