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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 213 · 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 of these needs a waterproof material? (a) a car windscreen (b) a hair band (c) a cooking pot handle (d) a boat hull
  2. 2.True or false: a boat hull needs a waterproof material. (a) False (b) True
  3. 3.True or false: an oven glove needs a waterproof material. (a) False (b) True
  4. 4.Which of these needs a transparent material? (a) an umbrella cover (b) a cooking pot handle (c) a raincoat (d) a spectacle lens
  5. 5.🧱 Which property matters most for a tea flask lining? (a) waterproof (b) transparent (c) heat insulator (d) flexible
  6. 6.🧱 Which property matters most for a raincoat? (a) heat insulator (b) waterproof (c) electrical conductor (d) flexible
  7. 7.🔍 Which is the odd one out? (a) aluminium (b) brass (c) iron (d) rubber
  8. 8.True or false: a hair band needs a flexible material. (a) False (b) True
  9. 9.🧱 Which material is best for the bars inside concrete? (a) glass (b) steel (c) rubber (d) plastic
  10. 10.🔍 Which is the odd one out? (a) dry wood (b) steel (c) brass (d) iron
  11. 11.🧱 Is glass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  12. 12.True or false: an umbrella cover needs a waterproof material. (a) False (b) True
  13. 13.🧱 Which property matters most for a window pane? (a) flexible (b) electrical conductor (c) heat insulator (d) transparent
  14. 14.True or false: a switch contact needs an electrical conductor. (a) False (b) True
  15. 15.🔍 Which is the odd one out? (a) plastic (b) copper (c) brass (d) steel
  16. 16.Which of these needs a flexible material? (a) a roof sheet (b) a water tank (c) a yoga mat (d) a plug pin
  17. 17.🧱 Which material is best for the core of an electric wire? (a) rubber (b) wood (c) glass (d) copper
  18. 18.🧱 Which material is best for a cooking pot handle? (a) copper (b) aluminium (c) wood or plastic (d) iron
  19. 19.🧱 Which property matters most for a spectacle lens? (a) transparent (b) waterproof (c) flexible (d) electrical conductor
  20. 20.🧱 Which property matters most for a yoga mat? (a) flexible (b) waterproof (c) heat insulator (d) electrical conductor
  21. 21.🧱 Which property matters most for an oven glove? (a) heat insulator (b) transparent (c) electrical conductor (d) waterproof
  22. 22.True or false: a skipping rope needs a flexible material. (a) True (b) False
  23. 23.True or false: an oven glove needs a heat insulator. (a) True (b) False
  24. 24.True or false: a roof sheet needs a heat insulator. (a) True (b) False
  25. 25.Which of these needs an electrical conductor? (a) a car seat belt (b) a water tank (c) a tea flask lining (d) the core of a wire
  26. 26.Which of these needs a transparent material? (a) a car seat belt (b) a water tank (c) a roof sheet (d) a car windscreen
  27. 27.True or false: a raincoat needs a waterproof material. (a) False (b) True
  28. 28.Which of these needs a heat insulator? (a) a yoga mat (b) a roof sheet (c) a hair band (d) a cooking pot handle
  29. 29.🧱 Which property matters most for an umbrella cover? (a) flexible (b) electrical conductor (c) heat insulator (d) waterproof
  30. 30.True or false: an oven glove needs a flexible material. (a) False (b) True
  31. 31.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  32. 32.🧱 Is rubber an electrical conductor or an insulator? (a) a conductor (b) an insulator
  33. 33.True or false: a car windscreen needs an electrical conductor. (a) False (b) True
  34. 34.🧱 Which material is best for a raincoat? (a) paper (b) cardboard (c) cotton wool (d) plastic-coated cloth
  35. 35.Which of these needs a flexible material? (a) a hair band (b) a magnifier lens (c) a boat hull (d) a raincoat
  36. 36.🧱 Which property matters most for a car windscreen? (a) transparent (b) heat insulator (c) electrical conductor (d) waterproof
  37. 37.Which of these needs a transparent material? (a) a plug pin (b) a cooking pot handle (c) a hair band (d) a window pane
  38. 38.🧱 Which property matters most for a water tank? (a) transparent (b) waterproof (c) electrical conductor (d) flexible
  39. 39.🧱 Is dry wood an electrical conductor or an insulator? (a) a conductor (b) an insulator
  40. 40.🧱 Is graphite an electrical conductor or an insulator? (a) an insulator (b) a conductor

Answer key

  1. a boat hull
  2. True
  3. False
  4. a spectacle lens
  5. heat insulator
  6. waterproof
  7. rubber
  8. True
  9. steel
  10. dry wood
  11. an insulator
  12. True
  13. transparent
  14. True
  15. plastic
  16. a yoga mat
  17. copper
  18. wood or plastic
  19. transparent
  20. flexible
  21. heat insulator
  22. True
  23. True
  24. False
  25. the core of a wire
  26. a car windscreen
  27. True
  28. a cooking pot handle
  29. waterproof
  30. False
  31. a conductor
  32. an insulator
  33. False
  34. plastic-coated cloth
  35. a hair band
  36. transparent
  37. a window pane
  38. waterproof
  39. an insulator
  40. a conductor

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