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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 503 · 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 material is best for the bars inside concrete? (a) glass (b) plastic (c) rubber (d) steel
  2. 2.🔍 Which is the odd one out? (a) rubber (b) aluminium (c) dry wood (d) clay pottery
  3. 3.True or false: a car windscreen needs a flexible material. (a) True (b) False
  4. 4.True or false: a plug pin needs an electrical conductor. (a) True (b) False
  5. 5.🔍 Which is the odd one out? (a) aluminium (b) rubber (c) steel (d) iron
  6. 6.Which of these needs an electrical conductor? (a) a boat hull (b) a hair band (c) the core of a wire (d) a window pane
  7. 7.🧱 Which material is best for a raincoat? (a) cotton wool (b) cardboard (c) paper (d) plastic-coated cloth
  8. 8.Which of these needs a transparent material? (a) a car windscreen (b) a raincoat (c) a skipping rope (d) a yoga mat
  9. 9.🧱 Which property matters most for a raincoat? (a) transparent (b) waterproof (c) electrical conductor (d) heat insulator
  10. 10.🧱 Is rubber an electrical conductor or an insulator? (a) a conductor (b) an insulator
  11. 11.True or false: a switch contact needs a heat insulator. (a) True (b) False
  12. 12.🧱 Which property matters most for a car seat belt? (a) flexible (b) transparent (c) heat insulator (d) waterproof
  13. 13.True or false: a yoga mat needs a flexible material. (a) True (b) False
  14. 14.Which of these needs a flexible material? (a) an oven glove (b) a raincoat (c) a magnifier lens (d) a car seat belt
  15. 15.🔍 Which is the odd one out? (a) copper (b) glass (c) dry wood (d) cotton cloth
  16. 16.🧱 Is glass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  17. 17.🔍 Which is the odd one out? (a) dry wood (b) glass (c) cotton cloth (d) steel
  18. 18.🧱 Which property matters most for an oven glove? (a) transparent (b) flexible (c) waterproof (d) heat insulator
  19. 19.Which of these needs a transparent material? (a) a spectacle lens (b) an umbrella cover (c) a tea flask lining (d) a yoga mat
  20. 20.🧱 Is dry wood an electrical conductor or an insulator? (a) an insulator (b) a conductor
  21. 21.Which of these needs a flexible material? (a) a boat hull (b) an oven glove (c) a hair band (d) a water tank
  22. 22.True or false: a hair band needs a transparent material. (a) True (b) False
  23. 23.🧱 Which material is best for the core of an electric wire? (a) wood (b) rubber (c) copper (d) glass
  24. 24.🧱 Is cotton cloth an electrical conductor or an insulator? (a) a conductor (b) an insulator
  25. 25.🧱 Is iron an electrical conductor or an insulator? (a) a conductor (b) an insulator
  26. 26.🧱 Which property matters most for a roof sheet? (a) heat insulator (b) waterproof (c) flexible (d) transparent
  27. 27.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
  28. 28.True or false: a yoga mat needs a heat insulator. (a) True (b) False
  29. 29.🧱 Which property matters most for a tea flask lining? (a) electrical conductor (b) waterproof (c) heat insulator (d) flexible
  30. 30.Which of these needs a heat insulator? (a) a yoga mat (b) a switch contact (c) a tea flask lining (d) a magnifier lens
  31. 31.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  32. 32.True or false: a boat hull needs a waterproof material. (a) False (b) True
  33. 33.🧱 Which property matters most for a plug pin? (a) heat insulator (b) electrical conductor (c) transparent (d) waterproof
  34. 34.🔍 Which is the odd one out? (a) cotton cloth (b) dry wood (c) graphite (d) plastic
  35. 35.🔍 Which is the odd one out? (a) steel (b) aluminium (c) copper (d) glass
  36. 36.Which of these needs a transparent material? (a) a water tank (b) a plug pin (c) an oven glove (d) a window pane
  37. 37.🧱 Is steel an electrical conductor or an insulator? (a) a conductor (b) an insulator
  38. 38.🧱 Which property matters most for a yoga mat? (a) waterproof (b) electrical conductor (c) flexible (d) heat insulator
  39. 39.🔍 Which is the odd one out? (a) copper (b) aluminium (c) cotton cloth (d) graphite
  40. 40.🔍 Which is the odd one out? (a) clay pottery (b) cotton cloth (c) dry wood (d) iron

Answer key

  1. steel
  2. aluminium
  3. False
  4. True
  5. rubber
  6. the core of a wire
  7. plastic-coated cloth
  8. a car windscreen
  9. waterproof
  10. an insulator
  11. False
  12. flexible
  13. True
  14. a car seat belt
  15. copper
  16. an insulator
  17. steel
  18. heat insulator
  19. a spectacle lens
  20. an insulator
  21. a hair band
  22. False
  23. copper
  24. an insulator
  25. a conductor
  26. waterproof
  27. an insulator
  28. False
  29. heat insulator
  30. a tea flask lining
  31. a conductor
  32. True
  33. electrical conductor
  34. graphite
  35. glass
  36. a window pane
  37. a conductor
  38. flexible
  39. cotton cloth
  40. iron

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