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Engineering Worksheet: Materials

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

Answer key

  1. True
  2. plastic
  3. flexible
  4. True
  5. True
  6. copper
  7. a roof sheet
  8. waterproof
  9. rubber
  10. waterproof
  11. brass
  12. an insulator
  13. a conductor
  14. transparent
  15. copper
  16. plastic-coated cloth
  17. waterproof
  18. True
  19. transparent
  20. an insulator
  21. glass
  22. transparent
  23. a conductor
  24. a tea flask lining
  25. a conductor
  26. a cooking pot handle
  27. flexible
  28. True
  29. a hair band
  30. cotton cloth
  31. True
  32. a plug pin
  33. a car seat belt
  34. flexible
  35. a magnifier lens
  36. a window pane
  37. steel
  38. a yoga mat
  39. glass
  40. a raincoat

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