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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 719 · 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 an oven glove? (a) waterproof (b) electrical conductor (c) flexible (d) heat insulator
  2. 2.🧱 Which material is best for a raincoat? (a) cardboard (b) paper (c) cotton wool (d) plastic-coated cloth
  3. 3.Which of these needs a waterproof material? (a) a switch contact (b) a boat hull (c) a car seat belt (d) a spectacle lens
  4. 4.🧱 Is graphite an electrical conductor or an insulator? (a) a conductor (b) an insulator
  5. 5.🧱 Which material is best for a window pane? (a) wood (b) steel (c) brick (d) glass
  6. 6.Which of these needs a waterproof material? (a) an oven glove (b) a spectacle lens (c) a hair band (d) a raincoat
  7. 7.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  8. 8.🧱 Which property matters most for an umbrella cover? (a) heat insulator (b) waterproof (c) flexible (d) transparent
  9. 9.Which of these needs a heat insulator? (a) a raincoat (b) a window pane (c) a spectacle lens (d) an oven glove
  10. 10.🧱 Which material is best for a cooking pot handle? (a) aluminium (b) iron (c) copper (d) wood or plastic
  11. 11.🧱 Is clay pottery an electrical conductor or an insulator? (a) a conductor (b) an insulator
  12. 12.🔍 Which is the odd one out? (a) cotton cloth (b) brass (c) steel (d) aluminium
  13. 13.🧱 Which property matters most for a magnifier lens? (a) transparent (b) electrical conductor (c) heat insulator (d) waterproof
  14. 14.True or false: a boat hull needs a waterproof material. (a) True (b) False
  15. 15.Which of these needs a transparent material? (a) a window pane (b) a roof sheet (c) a skipping rope (d) a boat hull
  16. 16.🔍 Which is the odd one out? (a) plastic (b) cotton cloth (c) steel (d) clay pottery
  17. 17.True or false: a tea flask lining needs a heat insulator. (a) False (b) True
  18. 18.Which of these needs an electrical conductor? (a) a car windscreen (b) a plug pin (c) a tea flask lining (d) a skipping rope
  19. 19.Which of these needs a flexible material? (a) a magnifier lens (b) a yoga mat (c) a raincoat (d) a tea flask lining
  20. 20.🧱 Which material is best for the core of an electric wire? (a) rubber (b) glass (c) wood (d) copper
  21. 21.Which of these needs a waterproof material? (a) a water tank (b) a car seat belt (c) a cooking pot handle (d) a spectacle lens
  22. 22.🔍 Which is the odd one out? (a) steel (b) iron (c) copper (d) dry wood
  23. 23.🧱 Is glass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  24. 24.🧱 Which property matters most for a water tank? (a) heat insulator (b) transparent (c) waterproof (d) electrical conductor
  25. 25.🔍 Which is the odd one out? (a) dry wood (b) glass (c) iron (d) rubber
  26. 26.🔍 Which is the odd one out? (a) clay pottery (b) rubber (c) copper (d) glass
  27. 27.🔍 Which is the odd one out? (a) cotton cloth (b) brass (c) plastic (d) dry wood
  28. 28.True or false: a raincoat needs a flexible material. (a) True (b) False
  29. 29.True or false: a tea flask lining needs an electrical conductor. (a) True (b) False
  30. 30.🧱 Is dry wood an electrical conductor or an insulator? (a) a conductor (b) an insulator
  31. 31.True or false: a raincoat needs a waterproof material. (a) False (b) True
  32. 32.Which of these needs an electrical conductor? (a) a cooking pot handle (b) a roof sheet (c) a tea flask lining (d) a switch contact
  33. 33.🧱 Which material is best for the bars inside concrete? (a) glass (b) rubber (c) steel (d) plastic
  34. 34.🧱 Is plastic an electrical conductor or an insulator? (a) an insulator (b) a conductor
  35. 35.True or false: a cooking pot handle needs a heat insulator. (a) True (b) False
  36. 36.Which of these needs a flexible material? (a) a plug pin (b) a car seat belt (c) a tea flask lining (d) a raincoat
  37. 37.🔍 Which is the odd one out? (a) copper (b) steel (c) glass (d) brass
  38. 38.True or false: a roof sheet needs a transparent material. (a) True (b) False
  39. 39.True or false: a roof sheet needs an electrical conductor. (a) True (b) False
  40. 40.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor

Answer key

  1. heat insulator
  2. plastic-coated cloth
  3. a boat hull
  4. a conductor
  5. glass
  6. a raincoat
  7. a conductor
  8. waterproof
  9. an oven glove
  10. wood or plastic
  11. an insulator
  12. cotton cloth
  13. transparent
  14. True
  15. a window pane
  16. steel
  17. True
  18. a plug pin
  19. a yoga mat
  20. copper
  21. a water tank
  22. dry wood
  23. an insulator
  24. waterproof
  25. iron
  26. copper
  27. brass
  28. False
  29. False
  30. an insulator
  31. True
  32. a switch contact
  33. steel
  34. an insulator
  35. True
  36. a car seat belt
  37. glass
  38. False
  39. False
  40. a conductor

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