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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 298 · 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 plug pin needs a flexible material. (a) True (b) False
  2. 2.Which of these needs a waterproof material? (a) the core of a wire (b) a raincoat (c) a window pane (d) a plug pin
  3. 3.Which of these needs a heat insulator? (a) a water tank (b) a tea flask lining (c) a car windscreen (d) a yoga mat
  4. 4.🧱 Which property matters most for a cooking pot handle? (a) waterproof (b) heat insulator (c) electrical conductor (d) transparent
  5. 5.🧱 Which property matters most for a switch contact? (a) heat insulator (b) flexible (c) electrical conductor (d) waterproof
  6. 6.🧱 Which property matters most for an oven glove? (a) transparent (b) heat insulator (c) electrical conductor (d) flexible
  7. 7.🧱 Which property matters most for a boat hull? (a) heat insulator (b) flexible (c) electrical conductor (d) waterproof
  8. 8.🧱 Is rubber an electrical conductor or an insulator? (a) a conductor (b) an insulator
  9. 9.🧱 Which property matters most for a car windscreen? (a) flexible (b) transparent (c) heat insulator (d) waterproof
  10. 10.🔍 Which is the odd one out? (a) brass (b) plastic (c) copper (d) iron
  11. 11.🔍 Which is the odd one out? (a) aluminium (b) iron (c) clay pottery (d) graphite
  12. 12.🧱 Is brass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  13. 13.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  14. 14.True or false: a skipping rope needs a flexible material. (a) True (b) False
  15. 15.🧱 Is graphite an electrical conductor or an insulator? (a) a conductor (b) an insulator
  16. 16.🔍 Which is the odd one out? (a) aluminium (b) glass (c) brass (d) copper
  17. 17.🔍 Which is the odd one out? (a) aluminium (b) iron (c) brass (d) rubber
  18. 18.🧱 Which material is best for the bars inside concrete? (a) rubber (b) steel (c) glass (d) plastic
  19. 19.Which of these needs a transparent material? (a) a yoga mat (b) a spectacle lens (c) a hair band (d) a boat hull
  20. 20.🧱 Which material is best for a cooking pot handle? (a) iron (b) aluminium (c) wood or plastic (d) copper
  21. 21.True or false: the core of a wire needs a transparent material. (a) True (b) False
  22. 22.🧱 Which property matters most for a skipping rope? (a) heat insulator (b) waterproof (c) flexible (d) electrical conductor
  23. 23.🧱 Which property matters most for a spectacle lens? (a) electrical conductor (b) waterproof (c) transparent (d) flexible
  24. 24.🔍 Which is the odd one out? (a) clay pottery (b) cotton cloth (c) graphite (d) plastic
  25. 25.🧱 Which property matters most for an umbrella cover? (a) electrical conductor (b) waterproof (c) heat insulator (d) transparent
  26. 26.🔍 Which is the odd one out? (a) rubber (b) cotton cloth (c) dry wood (d) brass
  27. 27.Which of these needs a flexible material? (a) a spectacle lens (b) a water tank (c) a roof sheet (d) a yoga mat
  28. 28.🔍 Which is the odd one out? (a) iron (b) clay pottery (c) dry wood (d) rubber
  29. 29.🧱 Which material is best for the core of an electric wire? (a) rubber (b) glass (c) copper (d) wood
  30. 30.🧱 Is cotton cloth an electrical conductor or an insulator? (a) a conductor (b) an insulator
  31. 31.True or false: an oven glove needs a heat insulator. (a) True (b) False
  32. 32.🧱 Which property matters most for a roof sheet? (a) transparent (b) electrical conductor (c) flexible (d) waterproof
  33. 33.🧱 Which property matters most for a hair band? (a) waterproof (b) heat insulator (c) flexible (d) transparent
  34. 34.🧱 Which material is best for a window pane? (a) steel (b) brick (c) wood (d) glass
  35. 35.True or false: a car windscreen needs a transparent material. (a) False (b) True
  36. 36.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  37. 37.True or false: a magnifier lens needs a transparent material. (a) False (b) True
  38. 38.🧱 Which material is best for a raincoat? (a) plastic-coated cloth (b) cardboard (c) cotton wool (d) paper
  39. 39.Which of these needs a flexible material? (a) a cooking pot handle (b) a tea flask lining (c) a hair band (d) a water tank
  40. 40.🧱 Is glass an electrical conductor or an insulator? (a) a conductor (b) an insulator

Answer key

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

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