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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 565 · 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 plastic an electrical conductor or an insulator? (a) an insulator (b) a conductor
  2. 2.🧱 Which property matters most for a magnifier lens? (a) waterproof (b) flexible (c) electrical conductor (d) transparent
  3. 3.🔍 Which is the odd one out? (a) copper (b) brass (c) iron (d) dry wood
  4. 4.🧱 Which property matters most for an oven glove? (a) transparent (b) waterproof (c) flexible (d) heat insulator
  5. 5.🧱 Which property matters most for an umbrella cover? (a) heat insulator (b) waterproof (c) transparent (d) electrical conductor
  6. 6.🧱 Which property matters most for the core of a wire? (a) flexible (b) transparent (c) electrical conductor (d) waterproof
  7. 7.Which of these needs a flexible material? (a) a yoga mat (b) a car windscreen (c) a plug pin (d) a tea flask lining
  8. 8.🔍 Which is the odd one out? (a) dry wood (b) rubber (c) clay pottery (d) iron
  9. 9.🧱 Is dry wood an electrical conductor or an insulator? (a) an insulator (b) a conductor
  10. 10.Which of these needs a waterproof material? (a) a switch contact (b) a tea flask lining (c) a spectacle lens (d) a raincoat
  11. 11.🔍 Which is the odd one out? (a) dry wood (b) plastic (c) brass (d) cotton cloth
  12. 12.Which of these needs a waterproof material? (a) a tea flask lining (b) a car windscreen (c) an oven glove (d) an umbrella cover
  13. 13.🧱 Is steel an electrical conductor or an insulator? (a) a conductor (b) an insulator
  14. 14.🧱 Which property matters most for a tea flask lining? (a) flexible (b) transparent (c) heat insulator (d) electrical conductor
  15. 15.🧱 Which property matters most for a plug pin? (a) transparent (b) waterproof (c) electrical conductor (d) heat insulator
  16. 16.🧱 Which material is best for a window pane? (a) brick (b) glass (c) wood (d) steel
  17. 17.🧱 Which property matters most for a spectacle lens? (a) waterproof (b) flexible (c) transparent (d) electrical conductor
  18. 18.True or false: a yoga mat needs a flexible material. (a) False (b) True
  19. 19.🧱 Which material is best for a cooking pot handle? (a) copper (b) iron (c) wood or plastic (d) aluminium
  20. 20.True or false: a plug pin needs an electrical conductor. (a) True (b) False
  21. 21.🔍 Which is the odd one out? (a) clay pottery (b) dry wood (c) aluminium (d) rubber
  22. 22.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
  23. 23.🧱 Is brass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  24. 24.🔍 Which is the odd one out? (a) rubber (b) cotton cloth (c) copper (d) dry wood
  25. 25.🧱 Which property matters most for a window pane? (a) waterproof (b) flexible (c) transparent (d) heat insulator
  26. 26.True or false: a car windscreen needs a heat insulator. (a) True (b) False
  27. 27.🧱 Which property matters most for a boat hull? (a) waterproof (b) flexible (c) electrical conductor (d) transparent
  28. 28.Which of these needs a transparent material? (a) an oven glove (b) a water tank (c) a window pane (d) an umbrella cover
  29. 29.🧱 Which material is best for the core of an electric wire? (a) copper (b) wood (c) glass (d) rubber
  30. 30.Which of these needs a waterproof material? (a) a skipping rope (b) an oven glove (c) a tea flask lining (d) a water tank
  31. 31.True or false: a water tank needs a transparent material. (a) True (b) False
  32. 32.Which of these needs an electrical conductor? (a) an oven glove (b) a car seat belt (c) a car windscreen (d) the core of a wire
  33. 33.🧱 Which property matters most for a car seat belt? (a) heat insulator (b) flexible (c) transparent (d) electrical conductor
  34. 34.🧱 Which property matters most for a yoga mat? (a) flexible (b) waterproof (c) electrical conductor (d) transparent
  35. 35.True or false: a skipping rope needs a flexible material. (a) False (b) True
  36. 36.True or false: a water tank needs a waterproof material. (a) True (b) False
  37. 37.True or false: a roof sheet needs a heat insulator. (a) False (b) True
  38. 38.True or false: a tea flask lining needs a transparent material. (a) True (b) False
  39. 39.True or false: a hair band needs a flexible material. (a) True (b) False
  40. 40.🧱 Which material is best for the bars inside concrete? (a) rubber (b) steel (c) glass (d) plastic

Answer key

  1. an insulator
  2. transparent
  3. dry wood
  4. heat insulator
  5. waterproof
  6. electrical conductor
  7. a yoga mat
  8. iron
  9. an insulator
  10. a raincoat
  11. brass
  12. an umbrella cover
  13. a conductor
  14. heat insulator
  15. electrical conductor
  16. glass
  17. transparent
  18. True
  19. wood or plastic
  20. True
  21. aluminium
  22. a conductor
  23. a conductor
  24. copper
  25. transparent
  26. False
  27. waterproof
  28. a window pane
  29. copper
  30. a water tank
  31. False
  32. the core of a wire
  33. flexible
  34. flexible
  35. True
  36. True
  37. False
  38. False
  39. True
  40. steel

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