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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 382 · 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 the core of a wire? (a) waterproof (b) transparent (c) electrical conductor (d) flexible
  2. 2.🧱 Which material is best for a raincoat? (a) paper (b) cardboard (c) cotton wool (d) plastic-coated cloth
  3. 3.Which of these needs a flexible material? (a) a raincoat (b) a roof sheet (c) an oven glove (d) a hair band
  4. 4.Which of these needs a transparent material? (a) a car windscreen (b) a hair band (c) an oven glove (d) a switch contact
  5. 5.🔍 Which is the odd one out? (a) copper (b) steel (c) cotton cloth (d) iron
  6. 6.Which of these needs a waterproof material? (a) a yoga mat (b) an oven glove (c) a raincoat (d) a hair band
  7. 7.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  8. 8.🔍 Which is the odd one out? (a) cotton cloth (b) dry wood (c) plastic (d) graphite
  9. 9.🧱 Which property matters most for an umbrella cover? (a) heat insulator (b) transparent (c) waterproof (d) electrical conductor
  10. 10.🧱 Which property matters most for a water tank? (a) heat insulator (b) flexible (c) waterproof (d) transparent
  11. 11.🔍 Which is the odd one out? (a) rubber (b) steel (c) dry wood (d) clay pottery
  12. 12.🧱 Which property matters most for an oven glove? (a) flexible (b) heat insulator (c) waterproof (d) electrical conductor
  13. 13.🧱 Which material is best for the core of an electric wire? (a) wood (b) glass (c) rubber (d) copper
  14. 14.Which of these needs a heat insulator? (a) a magnifier lens (b) a water tank (c) an oven glove (d) a roof sheet
  15. 15.🧱 Is dry wood an electrical conductor or an insulator? (a) a conductor (b) an insulator
  16. 16.🧱 Which property matters most for a roof sheet? (a) transparent (b) waterproof (c) flexible (d) heat insulator
  17. 17.🔍 Which is the odd one out? (a) graphite (b) rubber (c) aluminium (d) copper
  18. 18.🔍 Which is the odd one out? (a) glass (b) graphite (c) aluminium (d) brass
  19. 19.Which of these needs an electrical conductor? (a) an umbrella cover (b) a magnifier lens (c) the core of a wire (d) a yoga mat
  20. 20.🔍 Which is the odd one out? (a) graphite (b) clay pottery (c) steel (d) iron
  21. 21.🧱 Which material is best for the bars inside concrete? (a) steel (b) glass (c) rubber (d) plastic
  22. 22.🧱 Is plastic an electrical conductor or an insulator? (a) an insulator (b) a conductor
  23. 23.True or false: an umbrella cover needs a transparent material. (a) True (b) False
  24. 24.True or false: a boat hull needs a waterproof material. (a) True (b) False
  25. 25.🧱 Is glass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  26. 26.🧱 Which property matters most for a yoga mat? (a) flexible (b) heat insulator (c) waterproof (d) transparent
  27. 27.True or false: a car windscreen needs a transparent material. (a) True (b) False
  28. 28.🧱 Which property matters most for a spectacle lens? (a) transparent (b) waterproof (c) heat insulator (d) electrical conductor
  29. 29.🧱 Which material is best for a cooking pot handle? (a) aluminium (b) copper (c) iron (d) wood or plastic
  30. 30.Which of these needs a transparent material? (a) a yoga mat (b) an oven glove (c) a car seat belt (d) a spectacle lens
  31. 31.True or false: a car seat belt needs an electrical conductor. (a) False (b) True
  32. 32.Which of these needs a transparent material? (a) a tea flask lining (b) a window pane (c) a raincoat (d) a roof sheet
  33. 33.True or false: a water tank needs a waterproof material. (a) True (b) False
  34. 34.🧱 Which property matters most for a skipping rope? (a) flexible (b) waterproof (c) transparent (d) heat insulator
  35. 35.🧱 Which property matters most for a hair band? (a) flexible (b) transparent (c) waterproof (d) heat insulator
  36. 36.🧱 Which property matters most for a window pane? (a) flexible (b) waterproof (c) heat insulator (d) transparent
  37. 37.🧱 Is graphite an electrical conductor or an insulator? (a) a conductor (b) an insulator
  38. 38.True or false: a roof sheet needs a waterproof material. (a) True (b) False
  39. 39.🔍 Which is the odd one out? (a) brass (b) graphite (c) dry wood (d) aluminium
  40. 40.Which of these needs a flexible material? (a) a skipping rope (b) a roof sheet (c) the core of a wire (d) a raincoat

Answer key

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

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