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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 292 · 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.True or false: a hair band needs a flexible material. (a) False (b) True
  2. 2.True or false: a switch contact needs an electrical conductor. (a) False (b) True
  3. 3.Which of these needs a waterproof material? (a) a switch contact (b) the core of a wire (c) a window pane (d) a raincoat
  4. 4.🧱 Which material is best for a raincoat? (a) cotton wool (b) cardboard (c) paper (d) plastic-coated cloth
  5. 5.🧱 Which material is best for a cooking pot handle? (a) iron (b) aluminium (c) copper (d) wood or plastic
  6. 6.🧱 Is plastic an electrical conductor or an insulator? (a) an insulator (b) a conductor
  7. 7.True or false: a window pane needs a transparent material. (a) True (b) False
  8. 8.🧱 Is glass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  9. 9.True or false: a car seat belt needs a heat insulator. (a) True (b) False
  10. 10.Which of these needs a waterproof material? (a) a roof sheet (b) a hair band (c) a magnifier lens (d) a car seat belt
  11. 11.🧱 Which material is best for the core of an electric wire? (a) rubber (b) glass (c) wood (d) copper
  12. 12.🔍 Which is the odd one out? (a) glass (b) iron (c) aluminium (d) copper
  13. 13.🔍 Which is the odd one out? (a) cotton cloth (b) rubber (c) aluminium (d) glass
  14. 14.🧱 Is dry wood an electrical conductor or an insulator? (a) a conductor (b) an insulator
  15. 15.🧱 Which property matters most for a yoga mat? (a) transparent (b) electrical conductor (c) waterproof (d) flexible
  16. 16.🧱 Which property matters most for a roof sheet? (a) transparent (b) waterproof (c) heat insulator (d) electrical conductor
  17. 17.Which of these needs an electrical conductor? (a) a spectacle lens (b) a boat hull (c) a water tank (d) the core of a wire
  18. 18.True or false: an umbrella cover needs a flexible material. (a) True (b) False
  19. 19.Which of these needs a transparent material? (a) a roof sheet (b) a raincoat (c) a car windscreen (d) a switch contact
  20. 20.Which of these needs a flexible material? (a) a boat hull (b) an oven glove (c) a roof sheet (d) a yoga mat
  21. 21.Which of these needs a flexible material? (a) a tea flask lining (b) a skipping rope (c) a spectacle lens (d) a switch contact
  22. 22.🧱 Which property matters most for a boat hull? (a) electrical conductor (b) transparent (c) waterproof (d) flexible
  23. 23.Which of these needs a waterproof material? (a) a yoga mat (b) a car seat belt (c) a boat hull (d) a tea flask lining
  24. 24.Which of these needs a heat insulator? (a) a switch contact (b) a window pane (c) a cooking pot handle (d) a boat hull
  25. 25.Which of these needs an electrical conductor? (a) a tea flask lining (b) a plug pin (c) a car seat belt (d) a car windscreen
  26. 26.True or false: a boat hull needs a heat insulator. (a) True (b) False
  27. 27.🔍 Which is the odd one out? (a) cotton cloth (b) aluminium (c) steel (d) copper
  28. 28.True or false: a raincoat needs a flexible material. (a) True (b) False
  29. 29.🔍 Which is the odd one out? (a) clay pottery (b) glass (c) copper (d) cotton cloth
  30. 30.🧱 Which material is best for the bars inside concrete? (a) plastic (b) glass (c) rubber (d) steel
  31. 31.🧱 Which property matters most for a plug pin? (a) heat insulator (b) transparent (c) waterproof (d) electrical conductor
  32. 32.🧱 Which property matters most for a skipping rope? (a) electrical conductor (b) transparent (c) waterproof (d) flexible
  33. 33.🧱 Which property matters most for a hair band? (a) electrical conductor (b) waterproof (c) transparent (d) flexible
  34. 34.🧱 Which property matters most for an oven glove? (a) waterproof (b) electrical conductor (c) transparent (d) heat insulator
  35. 35.🧱 Which property matters most for a raincoat? (a) electrical conductor (b) transparent (c) flexible (d) waterproof
  36. 36.🧱 Is brass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  37. 37.🧱 Is aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
  38. 38.🧱 Which property matters most for a spectacle lens? (a) waterproof (b) electrical conductor (c) transparent (d) flexible
  39. 39.🔍 Which is the odd one out? (a) graphite (b) plastic (c) aluminium (d) iron
  40. 40.True or false: a plug pin needs an electrical conductor. (a) False (b) True

Answer key

  1. True
  2. True
  3. a raincoat
  4. plastic-coated cloth
  5. wood or plastic
  6. an insulator
  7. True
  8. an insulator
  9. False
  10. a roof sheet
  11. copper
  12. glass
  13. aluminium
  14. an insulator
  15. flexible
  16. waterproof
  17. the core of a wire
  18. False
  19. a car windscreen
  20. a yoga mat
  21. a skipping rope
  22. waterproof
  23. a boat hull
  24. a cooking pot handle
  25. a plug pin
  26. False
  27. cotton cloth
  28. False
  29. copper
  30. steel
  31. electrical conductor
  32. flexible
  33. flexible
  34. heat insulator
  35. waterproof
  36. a conductor
  37. a conductor
  38. transparent
  39. plastic
  40. True

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