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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 393 · 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 a boat hull? (a) waterproof (b) flexible (c) heat insulator (d) transparent
  2. 2.Which of these needs a transparent material? (a) an oven glove (b) a roof sheet (c) a plug pin (d) a magnifier lens
  3. 3.True or false: a water tank needs a waterproof material. (a) True (b) False
  4. 4.🧱 Is iron an electrical conductor or an insulator? (a) a conductor (b) an insulator
  5. 5.Which of these needs an electrical conductor? (a) a car seat belt (b) an oven glove (c) a plug pin (d) a raincoat
  6. 6.🧱 Is rubber an electrical conductor or an insulator? (a) an insulator (b) a conductor
  7. 7.🧱 Is graphite an electrical conductor or an insulator? (a) a conductor (b) an insulator
  8. 8.🧱 Which material is best for the bars inside concrete? (a) rubber (b) plastic (c) steel (d) glass
  9. 9.True or false: a hair band needs a transparent material. (a) False (b) True
  10. 10.🧱 Which material is best for the core of an electric wire? (a) rubber (b) copper (c) wood (d) glass
  11. 11.🔍 Which is the odd one out? (a) brass (b) plastic (c) clay pottery (d) rubber
  12. 12.🧱 Which property matters most for a plug pin? (a) heat insulator (b) flexible (c) electrical conductor (d) waterproof
  13. 13.Which of these needs a flexible material? (a) a tea flask lining (b) a window pane (c) the core of a wire (d) a yoga mat
  14. 14.Which of these needs a waterproof material? (a) a cooking pot handle (b) a plug pin (c) a water tank (d) a tea flask lining
  15. 15.Which of these needs a flexible material? (a) a skipping rope (b) a car windscreen (c) a spectacle lens (d) a tea flask lining
  16. 16.Which of these needs a waterproof material? (a) a skipping rope (b) a boat hull (c) a plug pin (d) a window pane
  17. 17.🧱 Which property matters most for a hair band? (a) heat insulator (b) transparent (c) flexible (d) electrical conductor
  18. 18.True or false: a roof sheet needs a waterproof material. (a) True (b) False
  19. 19.Which of these needs a waterproof material? (a) an oven glove (b) a yoga mat (c) a magnifier lens (d) a raincoat
  20. 20.🧱 Which property matters most for a window pane? (a) flexible (b) waterproof (c) electrical conductor (d) transparent
  21. 21.🧱 Which property matters most for a water tank? (a) waterproof (b) transparent (c) electrical conductor (d) flexible
  22. 22.🧱 Which material is best for a cooking pot handle? (a) aluminium (b) iron (c) copper (d) wood or plastic
  23. 23.Which of these needs a waterproof material? (a) a spectacle lens (b) a skipping rope (c) the core of a wire (d) an umbrella cover
  24. 24.🔍 Which is the odd one out? (a) brass (b) iron (c) clay pottery (d) copper
  25. 25.🧱 Which property matters most for the core of a wire? (a) heat insulator (b) flexible (c) electrical conductor (d) waterproof
  26. 26.Which of these needs a transparent material? (a) a spectacle lens (b) a car seat belt (c) a raincoat (d) a switch contact
  27. 27.Which of these needs a heat insulator? (a) a boat hull (b) a switch contact (c) a tea flask lining (d) a hair band
  28. 28.True or false: a switch contact needs a waterproof material. (a) True (b) False
  29. 29.🧱 Which property matters most for a cooking pot handle? (a) transparent (b) waterproof (c) heat insulator (d) flexible
  30. 30.🧱 Which property matters most for a car windscreen? (a) flexible (b) heat insulator (c) electrical conductor (d) transparent
  31. 31.True or false: a magnifier lens needs a waterproof material. (a) True (b) False
  32. 32.🧱 Which material is best for a raincoat? (a) cotton wool (b) plastic-coated cloth (c) cardboard (d) paper
  33. 33.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  34. 34.True or false: a window pane needs a heat insulator. (a) True (b) False
  35. 35.🧱 Which property matters most for a raincoat? (a) waterproof (b) electrical conductor (c) flexible (d) heat insulator
  36. 36.Which of these needs a waterproof material? (a) a car windscreen (b) a skipping rope (c) a plug pin (d) a roof sheet
  37. 37.🧱 Is cotton cloth an electrical conductor or an insulator? (a) a conductor (b) an insulator
  38. 38.True or false: a cooking pot handle needs a waterproof material. (a) True (b) False
  39. 39.🧱 Which property matters most for a magnifier lens? (a) electrical conductor (b) flexible (c) transparent (d) heat insulator
  40. 40.Which of these needs a flexible material? (a) a boat hull (b) a spectacle lens (c) a hair band (d) a plug pin

Answer key

  1. waterproof
  2. a magnifier lens
  3. True
  4. a conductor
  5. a plug pin
  6. an insulator
  7. a conductor
  8. steel
  9. False
  10. copper
  11. brass
  12. electrical conductor
  13. a yoga mat
  14. a water tank
  15. a skipping rope
  16. a boat hull
  17. flexible
  18. True
  19. a raincoat
  20. transparent
  21. waterproof
  22. wood or plastic
  23. an umbrella cover
  24. clay pottery
  25. electrical conductor
  26. a spectacle lens
  27. a tea flask lining
  28. False
  29. heat insulator
  30. transparent
  31. False
  32. plastic-coated cloth
  33. a conductor
  34. False
  35. waterproof
  36. a roof sheet
  37. an insulator
  38. False
  39. transparent
  40. a hair band

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