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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 834 · 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) electrical conductor (b) waterproof (c) heat insulator (d) flexible
  2. 2.🧱 Which property matters most for a switch contact? (a) electrical conductor (b) waterproof (c) heat insulator (d) transparent
  3. 3.🧱 Which material is best for the core of an electric wire? (a) glass (b) wood (c) rubber (d) copper
  4. 4.Which of these needs a waterproof material? (a) a water tank (b) a car windscreen (c) a tea flask lining (d) an oven glove
  5. 5.🔍 Which is the odd one out? (a) aluminium (b) plastic (c) rubber (d) cotton cloth
  6. 6.🧱 Is dry wood an electrical conductor or an insulator? (a) an insulator (b) a conductor
  7. 7.🧱 Which property matters most for the core of a wire? (a) heat insulator (b) transparent (c) flexible (d) electrical conductor
  8. 8.🧱 Which property matters most for a skipping rope? (a) flexible (b) heat insulator (c) transparent (d) electrical conductor
  9. 9.🔍 Which is the odd one out? (a) steel (b) copper (c) graphite (d) plastic
  10. 10.True or false: a raincoat needs a waterproof material. (a) True (b) False
  11. 11.🔍 Which is the odd one out? (a) steel (b) graphite (c) aluminium (d) glass
  12. 12.🧱 Which property matters most for a yoga mat? (a) flexible (b) electrical conductor (c) waterproof (d) transparent
  13. 13.True or false: a magnifier lens needs an electrical conductor. (a) True (b) False
  14. 14.🧱 Is aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
  15. 15.🧱 Which property matters most for a water tank? (a) heat insulator (b) electrical conductor (c) transparent (d) waterproof
  16. 16.True or false: a yoga mat needs a flexible material. (a) False (b) True
  17. 17.True or false: a boat hull needs an electrical conductor. (a) True (b) False
  18. 18.🔍 Which is the odd one out? (a) brass (b) graphite (c) aluminium (d) clay pottery
  19. 19.Which of these needs a flexible material? (a) a window pane (b) a plug pin (c) a car seat belt (d) a spectacle lens
  20. 20.True or false: a boat hull needs a flexible material. (a) True (b) False
  21. 21.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
  22. 22.Which of these needs a heat insulator? (a) a car seat belt (b) a cooking pot handle (c) a spectacle lens (d) a window pane
  23. 23.Which of these needs a flexible material? (a) a water tank (b) a window pane (c) an oven glove (d) a skipping rope
  24. 24.True or false: a cooking pot handle needs an electrical conductor. (a) False (b) True
  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 car seat belt (b) a boat hull (c) a switch contact (d) an oven glove
  27. 27.🧱 Which property matters most for a raincoat? (a) electrical conductor (b) flexible (c) heat insulator (d) waterproof
  28. 28.🧱 Is steel an electrical conductor or an insulator? (a) a conductor (b) an insulator
  29. 29.🔍 Which is the odd one out? (a) dry wood (b) glass (c) steel (d) cotton cloth
  30. 30.🔍 Which is the odd one out? (a) iron (b) cotton cloth (c) rubber (d) plastic
  31. 31.🧱 Which property matters most for a boat hull? (a) electrical conductor (b) flexible (c) heat insulator (d) waterproof
  32. 32.🧱 Is copper an electrical conductor or an insulator? (a) a conductor (b) an insulator
  33. 33.🧱 Is clay pottery an electrical conductor or an insulator? (a) a conductor (b) an insulator
  34. 34.🔍 Which is the odd one out? (a) glass (b) dry wood (c) cotton cloth (d) brass
  35. 35.Which of these needs a transparent material? (a) a car windscreen (b) a hair band (c) a cooking pot handle (d) a tea flask lining
  36. 36.🔍 Which is the odd one out? (a) rubber (b) cotton cloth (c) copper (d) plastic
  37. 37.Which of these needs an electrical conductor? (a) a car windscreen (b) an oven glove (c) a magnifier lens (d) the core of a wire
  38. 38.True or false: a boat hull needs a waterproof material. (a) False (b) True
  39. 39.🧱 Is rubber an electrical conductor or an insulator? (a) a conductor (b) an insulator
  40. 40.🧱 Which property matters most for a tea flask lining? (a) waterproof (b) heat insulator (c) flexible (d) electrical conductor

Answer key

  1. waterproof
  2. electrical conductor
  3. copper
  4. a water tank
  5. aluminium
  6. an insulator
  7. electrical conductor
  8. flexible
  9. plastic
  10. True
  11. glass
  12. flexible
  13. False
  14. a conductor
  15. waterproof
  16. True
  17. False
  18. clay pottery
  19. a car seat belt
  20. False
  21. an insulator
  22. a cooking pot handle
  23. a skipping rope
  24. False
  25. an insulator
  26. a switch contact
  27. waterproof
  28. a conductor
  29. steel
  30. iron
  31. waterproof
  32. a conductor
  33. an insulator
  34. brass
  35. a car windscreen
  36. copper
  37. the core of a wire
  38. True
  39. an insulator
  40. heat insulator

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