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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 232 · 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 material is best for a raincoat? (a) paper (b) plastic-coated cloth (c) cotton wool (d) cardboard
  2. 2.True or false: a cooking pot handle needs a heat insulator. (a) False (b) True
  3. 3.🧱 Is rubber an electrical conductor or an insulator? (a) a conductor (b) an insulator
  4. 4.🧱 Which property matters most for an umbrella cover? (a) flexible (b) transparent (c) waterproof (d) electrical conductor
  5. 5.Which of these needs a waterproof material? (a) a car windscreen (b) a raincoat (c) a skipping rope (d) a yoga mat
  6. 6.🔍 Which is the odd one out? (a) aluminium (b) graphite (c) brass (d) glass
  7. 7.🧱 Which material is best for a cooking pot handle? (a) aluminium (b) copper (c) iron (d) wood or plastic
  8. 8.🧱 Is clay pottery an electrical conductor or an insulator? (a) a conductor (b) an insulator
  9. 9.🧱 Is graphite an electrical conductor or an insulator? (a) an insulator (b) a conductor
  10. 10.Which of these needs a flexible material? (a) a spectacle lens (b) a boat hull (c) an umbrella cover (d) a car seat belt
  11. 11.Which of these needs a heat insulator? (a) a car windscreen (b) a cooking pot handle (c) a plug pin (d) a car seat belt
  12. 12.Which of these needs a flexible material? (a) a tea flask lining (b) a window pane (c) a skipping rope (d) a boat hull
  13. 13.🧱 Which property matters most for a cooking pot handle? (a) flexible (b) electrical conductor (c) heat insulator (d) waterproof
  14. 14.🧱 Which property matters most for a plug pin? (a) flexible (b) electrical conductor (c) transparent (d) waterproof
  15. 15.True or false: a plug pin needs a transparent material. (a) False (b) True
  16. 16.🔍 Which is the odd one out? (a) glass (b) cotton cloth (c) clay pottery (d) aluminium
  17. 17.🧱 Which property matters most for a magnifier lens? (a) flexible (b) electrical conductor (c) heat insulator (d) transparent
  18. 18.Which of these needs an electrical conductor? (a) a water tank (b) an umbrella cover (c) an oven glove (d) the core of a wire
  19. 19.🧱 Is glass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  20. 20.Which of these needs a flexible material? (a) a yoga mat (b) a car windscreen (c) a tea flask lining (d) a magnifier lens
  21. 21.Which of these needs a transparent material? (a) a plug pin (b) a hair band (c) a car windscreen (d) an umbrella cover
  22. 22.Which of these needs an electrical conductor? (a) a magnifier lens (b) a tea flask lining (c) a roof sheet (d) a plug pin
  23. 23.🧱 Which property matters most for a car windscreen? (a) heat insulator (b) flexible (c) transparent (d) waterproof
  24. 24.🧱 Which material is best for a window pane? (a) steel (b) brick (c) wood (d) glass
  25. 25.🔍 Which is the odd one out? (a) copper (b) brass (c) iron (d) rubber
  26. 26.True or false: a raincoat needs a waterproof material. (a) True (b) False
  27. 27.True or false: a window pane needs a transparent material. (a) True (b) False
  28. 28.🧱 Which property matters most for a yoga mat? (a) electrical conductor (b) flexible (c) heat insulator (d) transparent
  29. 29.🧱 Which property matters most for a skipping rope? (a) transparent (b) electrical conductor (c) flexible (d) heat insulator
  30. 30.🔍 Which is the odd one out? (a) plastic (b) clay pottery (c) iron (d) cotton cloth
  31. 31.🧱 Which material is best for the core of an electric wire? (a) glass (b) rubber (c) wood (d) copper
  32. 32.True or false: the core of a wire needs an electrical conductor. (a) False (b) True
  33. 33.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  34. 34.🧱 Is brass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  35. 35.🔍 Which is the odd one out? (a) plastic (b) clay pottery (c) cotton cloth (d) copper
  36. 36.Which of these needs a waterproof material? (a) a yoga mat (b) a car windscreen (c) a roof sheet (d) an oven glove
  37. 37.True or false: a switch contact needs an electrical conductor. (a) False (b) True
  38. 38.🧱 Which property matters most for a roof sheet? (a) transparent (b) electrical conductor (c) flexible (d) waterproof
  39. 39.🧱 Is dry wood an electrical conductor or an insulator? (a) an insulator (b) a conductor
  40. 40.True or false: a skipping rope needs a flexible material. (a) False (b) True

Answer key

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

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