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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 595 · 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 window pane? (a) steel (b) glass (c) wood (d) brick
  2. 2.🧱 Which property matters most for a car windscreen? (a) heat insulator (b) waterproof (c) transparent (d) electrical conductor
  3. 3.🔍 Which is the odd one out? (a) clay pottery (b) rubber (c) dry wood (d) graphite
  4. 4.Which of these needs a flexible material? (a) a cooking pot handle (b) a magnifier lens (c) a yoga mat (d) a water tank
  5. 5.True or false: a boat hull needs a waterproof material. (a) False (b) True
  6. 6.Which of these needs a waterproof material? (a) a car seat belt (b) a boat hull (c) a spectacle lens (d) a plug pin
  7. 7.🧱 Which property matters most for an oven glove? (a) heat insulator (b) transparent (c) electrical conductor (d) flexible
  8. 8.🔍 Which is the odd one out? (a) rubber (b) copper (c) clay pottery (d) dry wood
  9. 9.🧱 Which property matters most for a roof sheet? (a) waterproof (b) heat insulator (c) flexible (d) transparent
  10. 10.🧱 Which material is best for the core of an electric wire? (a) rubber (b) copper (c) glass (d) wood
  11. 11.Which of these needs a transparent material? (a) a skipping rope (b) a yoga mat (c) a window pane (d) a cooking pot handle
  12. 12.🧱 Is graphite an electrical conductor or an insulator? (a) an insulator (b) a conductor
  13. 13.True or false: a car seat belt needs a flexible material. (a) True (b) False
  14. 14.Which of these needs a flexible material? (a) a spectacle lens (b) a hair band (c) a water tank (d) a roof sheet
  15. 15.🔍 Which is the odd one out? (a) iron (b) copper (c) brass (d) dry wood
  16. 16.Which of these needs a flexible material? (a) a tea flask lining (b) an oven glove (c) a skipping rope (d) an umbrella cover
  17. 17.Which of these needs a heat insulator? (a) a cooking pot handle (b) a raincoat (c) a roof sheet (d) a plug pin
  18. 18.🧱 Is dry wood an electrical conductor or an insulator? (a) a conductor (b) an insulator
  19. 19.🧱 Which material is best for the bars inside concrete? (a) glass (b) plastic (c) steel (d) rubber
  20. 20.True or false: a magnifier lens needs a transparent material. (a) False (b) True
  21. 21.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  22. 22.🧱 Which property matters most for a skipping rope? (a) heat insulator (b) electrical conductor (c) transparent (d) flexible
  23. 23.Which of these needs an electrical conductor? (a) a yoga mat (b) a switch contact (c) a water tank (d) a boat hull
  24. 24.🧱 Which material is best for a cooking pot handle? (a) copper (b) wood or plastic (c) iron (d) aluminium
  25. 25.Which of these needs a heat insulator? (a) a water tank (b) an oven glove (c) a yoga mat (d) a window pane
  26. 26.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  27. 27.True or false: a yoga mat needs a flexible material. (a) True (b) False
  28. 28.🔍 Which is the odd one out? (a) dry wood (b) cotton cloth (c) brass (d) rubber
  29. 29.🧱 Which property matters most for an umbrella cover? (a) flexible (b) heat insulator (c) waterproof (d) electrical conductor
  30. 30.🧱 Which material is best for a raincoat? (a) paper (b) plastic-coated cloth (c) cotton wool (d) cardboard
  31. 31.🔍 Which is the odd one out? (a) copper (b) graphite (c) steel (d) cotton cloth
  32. 32.🧱 Which property matters most for a cooking pot handle? (a) flexible (b) transparent (c) waterproof (d) heat insulator
  33. 33.Which of these needs a transparent material? (a) a switch contact (b) a skipping rope (c) a magnifier lens (d) an oven glove
  34. 34.🧱 Is iron an electrical conductor or an insulator? (a) a conductor (b) an insulator
  35. 35.🧱 Which property matters most for a plug pin? (a) electrical conductor (b) transparent (c) waterproof (d) flexible
  36. 36.🧱 Is glass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  37. 37.🧱 Is clay pottery an electrical conductor or an insulator? (a) an insulator (b) a conductor
  38. 38.True or false: the core of a wire needs an electrical conductor. (a) True (b) False
  39. 39.True or false: a raincoat needs a flexible material. (a) True (b) False
  40. 40.🧱 Which property matters most for a car seat belt? (a) transparent (b) waterproof (c) flexible (d) heat insulator

Answer key

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

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