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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 868 · 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 a cooking pot handle? (a) iron (b) wood or plastic (c) aluminium (d) copper
  2. 2.True or false: a water tank needs a flexible material. (a) False (b) True
  3. 3.🧱 Which material is best for a window pane? (a) glass (b) wood (c) brick (d) steel
  4. 4.True or false: a switch contact needs an electrical conductor. (a) False (b) True
  5. 5.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
  6. 6.Which of these needs a transparent material? (a) a car windscreen (b) a switch contact (c) a plug pin (d) a water tank
  7. 7.🧱 Is clay pottery an electrical conductor or an insulator? (a) a conductor (b) an insulator
  8. 8.🧱 Which material is best for a raincoat? (a) cotton wool (b) cardboard (c) paper (d) plastic-coated cloth
  9. 9.🧱 Which property matters most for a switch contact? (a) waterproof (b) transparent (c) electrical conductor (d) heat insulator
  10. 10.True or false: a boat hull needs a waterproof material. (a) False (b) True
  11. 11.Which of these needs a heat insulator? (a) a plug pin (b) a yoga mat (c) a boat hull (d) an oven glove
  12. 12.🧱 Which property matters most for a car windscreen? (a) heat insulator (b) transparent (c) electrical conductor (d) waterproof
  13. 13.True or false: an umbrella cover needs a waterproof material. (a) False (b) True
  14. 14.🧱 Which property matters most for a hair band? (a) heat insulator (b) electrical conductor (c) waterproof (d) flexible
  15. 15.🧱 Which property matters most for an umbrella cover? (a) waterproof (b) flexible (c) electrical conductor (d) heat insulator
  16. 16.True or false: a yoga mat needs a flexible material. (a) False (b) True
  17. 17.🧱 Is aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
  18. 18.🧱 Which property matters most for a raincoat? (a) transparent (b) heat insulator (c) waterproof (d) flexible
  19. 19.True or false: a raincoat needs a flexible material. (a) False (b) True
  20. 20.🧱 Which property matters most for an oven glove? (a) electrical conductor (b) transparent (c) waterproof (d) heat insulator
  21. 21.🔍 Which is the odd one out? (a) graphite (b) plastic (c) copper (d) brass
  22. 22.Which of these needs a waterproof material? (a) a boat hull (b) a car seat belt (c) a window pane (d) a cooking pot handle
  23. 23.Which of these needs a flexible material? (a) a hair band (b) a window pane (c) a car windscreen (d) a switch contact
  24. 24.🧱 Which property matters most for a tea flask lining? (a) heat insulator (b) flexible (c) waterproof (d) transparent
  25. 25.🧱 Which property matters most for a yoga mat? (a) heat insulator (b) transparent (c) flexible (d) waterproof
  26. 26.🧱 Which property matters most for a boat hull? (a) heat insulator (b) transparent (c) electrical conductor (d) waterproof
  27. 27.True or false: an oven glove needs a waterproof material. (a) True (b) False
  28. 28.True or false: a cooking pot handle needs a flexible material. (a) False (b) True
  29. 29.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  30. 30.True or false: a magnifier lens needs a flexible material. (a) False (b) True
  31. 31.🧱 Which material is best for the core of an electric wire? (a) rubber (b) glass (c) copper (d) wood
  32. 32.Which of these needs a waterproof material? (a) a cooking pot handle (b) a roof sheet (c) a car windscreen (d) a switch contact
  33. 33.🧱 Which property matters most for a skipping rope? (a) heat insulator (b) electrical conductor (c) transparent (d) flexible
  34. 34.🔍 Which is the odd one out? (a) clay pottery (b) rubber (c) glass (d) aluminium
  35. 35.Which of these needs a waterproof material? (a) a switch contact (b) a tea flask lining (c) a raincoat (d) a skipping rope
  36. 36.True or false: a window pane needs an electrical conductor. (a) True (b) False
  37. 37.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  38. 38.🧱 Is cotton cloth an electrical conductor or an insulator? (a) an insulator (b) a conductor
  39. 39.Which of these needs an electrical conductor? (a) a roof sheet (b) a raincoat (c) a switch contact (d) a hair band
  40. 40.True or false: a tea flask lining needs a heat insulator. (a) True (b) False

Answer key

  1. wood or plastic
  2. False
  3. glass
  4. True
  5. an insulator
  6. a car windscreen
  7. an insulator
  8. plastic-coated cloth
  9. electrical conductor
  10. True
  11. an oven glove
  12. transparent
  13. True
  14. flexible
  15. waterproof
  16. True
  17. a conductor
  18. waterproof
  19. False
  20. heat insulator
  21. plastic
  22. a boat hull
  23. a hair band
  24. heat insulator
  25. flexible
  26. waterproof
  27. False
  28. False
  29. a conductor
  30. False
  31. copper
  32. a roof sheet
  33. flexible
  34. aluminium
  35. a raincoat
  36. False
  37. a conductor
  38. an insulator
  39. a switch contact
  40. True

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