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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 281 · 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 is the odd one out? (a) clay pottery (b) aluminium (c) iron (d) graphite
  2. 2.🧱 Which material is best for the bars inside concrete? (a) rubber (b) plastic (c) steel (d) glass
  3. 3.True or false: an oven glove needs a heat insulator. (a) True (b) False
  4. 4.Which of these needs a waterproof material? (a) a plug pin (b) a boat hull (c) a hair band (d) a window pane
  5. 5.🧱 Is aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
  6. 6.🧱 Which property matters most for a spectacle lens? (a) electrical conductor (b) flexible (c) heat insulator (d) transparent
  7. 7.🧱 Which material is best for a cooking pot handle? (a) copper (b) aluminium (c) wood or plastic (d) iron
  8. 8.True or false: a plug pin needs a waterproof material. (a) False (b) True
  9. 9.Which of these needs a heat insulator? (a) a car seat belt (b) an oven glove (c) a magnifier lens (d) a boat hull
  10. 10.🧱 Which property matters most for a tea flask lining? (a) transparent (b) flexible (c) heat insulator (d) waterproof
  11. 11.True or false: a car windscreen needs a transparent material. (a) True (b) False
  12. 12.🧱 Which property matters most for a hair band? (a) waterproof (b) flexible (c) heat insulator (d) electrical conductor
  13. 13.Which of these needs an electrical conductor? (a) a spectacle lens (b) a water tank (c) an umbrella cover (d) a plug pin
  14. 14.🧱 Which property matters most for a yoga mat? (a) heat insulator (b) transparent (c) waterproof (d) flexible
  15. 15.True or false: a raincoat needs a transparent material. (a) False (b) True
  16. 16.True or false: an oven glove needs a transparent material. (a) False (b) True
  17. 17.🧱 Is glass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  18. 18.🧱 Which material is best for a window pane? (a) brick (b) glass (c) wood (d) steel
  19. 19.🧱 Which material is best for a raincoat? (a) cardboard (b) cotton wool (c) plastic-coated cloth (d) paper
  20. 20.True or false: a water tank needs a waterproof material. (a) False (b) True
  21. 21.Which of these needs a transparent material? (a) a tea flask lining (b) a plug pin (c) the core of a wire (d) a spectacle lens
  22. 22.🧱 Is copper an electrical conductor or an insulator? (a) a conductor (b) an insulator
  23. 23.Which of these needs a waterproof material? (a) a yoga mat (b) a cooking pot handle (c) a spectacle lens (d) a roof sheet
  24. 24.🧱 Which property matters most for a cooking pot handle? (a) electrical conductor (b) transparent (c) flexible (d) heat insulator
  25. 25.Which of these needs a waterproof material? (a) an umbrella cover (b) a spectacle lens (c) a skipping rope (d) a car windscreen
  26. 26.🧱 Which property matters most for a skipping rope? (a) flexible (b) waterproof (c) heat insulator (d) electrical conductor
  27. 27.True or false: a car seat belt needs a flexible material. (a) False (b) True
  28. 28.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  29. 29.🔍 Which is the odd one out? (a) graphite (b) copper (c) rubber (d) aluminium
  30. 30.🧱 Which property matters most for a plug pin? (a) flexible (b) electrical conductor (c) heat insulator (d) waterproof
  31. 31.Which of these needs a flexible material? (a) a boat hull (b) a switch contact (c) a window pane (d) a hair band
  32. 32.Which of these needs a flexible material? (a) a yoga mat (b) the core of a wire (c) a roof sheet (d) an umbrella cover
  33. 33.True or false: a window pane needs a waterproof material. (a) False (b) True
  34. 34.Which of these needs a flexible material? (a) the core of a wire (b) a skipping rope (c) a spectacle lens (d) a tea flask lining
  35. 35.🧱 Which property matters most for a roof sheet? (a) flexible (b) transparent (c) electrical conductor (d) waterproof
  36. 36.🧱 Which material is best for the core of an electric wire? (a) wood (b) rubber (c) glass (d) copper
  37. 37.🧱 Which property matters most for a water tank? (a) heat insulator (b) transparent (c) electrical conductor (d) waterproof
  38. 38.True or false: a switch contact needs a waterproof material. (a) True (b) False
  39. 39.Which of these needs a flexible material? (a) a car windscreen (b) a roof sheet (c) a tea flask lining (d) a car seat belt
  40. 40.Which of these needs a heat insulator? (a) a car seat belt (b) a cooking pot handle (c) a switch contact (d) a car windscreen

Answer key

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

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