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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 201 · 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 of these needs a waterproof material? (a) an umbrella cover (b) a switch contact (c) a tea flask lining (d) a skipping rope
  2. 2.🧱 Is iron an electrical conductor or an insulator? (a) a conductor (b) an insulator
  3. 3.True or false: a window pane needs a transparent material. (a) False (b) True
  4. 4.🧱 Which property matters most for a window pane? (a) transparent (b) electrical conductor (c) heat insulator (d) waterproof
  5. 5.🔍 Which is the odd one out? (a) copper (b) plastic (c) cotton cloth (d) rubber
  6. 6.True or false: a switch contact needs an electrical conductor. (a) True (b) False
  7. 7.True or false: a cooking pot handle needs a heat insulator. (a) False (b) True
  8. 8.Which of these needs a transparent material? (a) a car seat belt (b) a raincoat (c) a window pane (d) the core of a wire
  9. 9.🧱 Is cotton cloth an electrical conductor or an insulator? (a) an insulator (b) a conductor
  10. 10.🧱 Which property matters most for a magnifier lens? (a) transparent (b) waterproof (c) heat insulator (d) flexible
  11. 11.True or false: a raincoat needs a transparent material. (a) False (b) True
  12. 12.True or false: a car windscreen needs a transparent material. (a) False (b) True
  13. 13.🧱 Which material is best for a raincoat? (a) plastic-coated cloth (b) cotton wool (c) cardboard (d) paper
  14. 14.🧱 Which property matters most for a skipping rope? (a) heat insulator (b) transparent (c) electrical conductor (d) flexible
  15. 15.Which of these needs a flexible material? (a) a hair band (b) a car windscreen (c) a roof sheet (d) an oven glove
  16. 16.🧱 Which property matters most for a switch contact? (a) transparent (b) waterproof (c) electrical conductor (d) flexible
  17. 17.🧱 Which material is best for the core of an electric wire? (a) copper (b) rubber (c) glass (d) wood
  18. 18.🧱 Is brass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  19. 19.🧱 Which property matters most for the core of a wire? (a) transparent (b) waterproof (c) electrical conductor (d) flexible
  20. 20.Which of these needs a heat insulator? (a) a car windscreen (b) a window pane (c) an umbrella cover (d) a cooking pot handle
  21. 21.🧱 Which material is best for a window pane? (a) glass (b) wood (c) steel (d) brick
  22. 22.Which of these needs a transparent material? (a) an umbrella cover (b) a roof sheet (c) a car windscreen (d) a skipping rope
  23. 23.🧱 Which property matters most for a plug pin? (a) transparent (b) flexible (c) electrical conductor (d) heat insulator
  24. 24.🧱 Which property matters most for a boat hull? (a) electrical conductor (b) heat insulator (c) waterproof (d) transparent
  25. 25.True or false: a car seat belt needs a waterproof material. (a) False (b) True
  26. 26.True or false: a magnifier lens needs an electrical conductor. (a) True (b) False
  27. 27.Which of these needs a heat insulator? (a) a roof sheet (b) a skipping rope (c) an oven glove (d) an umbrella cover
  28. 28.🧱 Which material is best for the bars inside concrete? (a) plastic (b) rubber (c) steel (d) glass
  29. 29.🔍 Which is the odd one out? (a) aluminium (b) copper (c) glass (d) iron
  30. 30.🧱 Which property matters most for a water tank? (a) heat insulator (b) waterproof (c) transparent (d) electrical conductor
  31. 31.Which of these needs a heat insulator? (a) a tea flask lining (b) a car seat belt (c) a yoga mat (d) a switch contact
  32. 32.🔍 Which is the odd one out? (a) copper (b) graphite (c) brass (d) dry wood
  33. 33.True or false: a tea flask lining needs a transparent material. (a) False (b) True
  34. 34.True or false: a hair band needs an electrical conductor. (a) False (b) True
  35. 35.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  36. 36.🧱 Is dry wood an electrical conductor or an insulator? (a) an insulator (b) a conductor
  37. 37.Which of these needs a transparent material? (a) a raincoat (b) a magnifier lens (c) a switch contact (d) a cooking pot handle
  38. 38.🧱 Is copper an electrical conductor or an insulator? (a) a conductor (b) an insulator
  39. 39.🔍 Which is the odd one out? (a) dry wood (b) brass (c) plastic (d) rubber
  40. 40.🧱 Which material is best for a cooking pot handle? (a) iron (b) wood or plastic (c) copper (d) aluminium

Answer key

  1. an umbrella cover
  2. a conductor
  3. True
  4. transparent
  5. copper
  6. True
  7. True
  8. a window pane
  9. an insulator
  10. transparent
  11. False
  12. True
  13. plastic-coated cloth
  14. flexible
  15. a hair band
  16. electrical conductor
  17. copper
  18. a conductor
  19. electrical conductor
  20. a cooking pot handle
  21. glass
  22. a car windscreen
  23. electrical conductor
  24. waterproof
  25. False
  26. False
  27. an oven glove
  28. steel
  29. glass
  30. waterproof
  31. a tea flask lining
  32. dry wood
  33. False
  34. False
  35. a conductor
  36. an insulator
  37. a magnifier lens
  38. a conductor
  39. brass
  40. wood or plastic

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