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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 288 · 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) rubber (b) plastic (c) aluminium (d) clay pottery
  2. 2.Which of these needs a waterproof material? (a) a plug pin (b) a roof sheet (c) a car windscreen (d) a window pane
  3. 3.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
  4. 4.🔍 Which is the odd one out? (a) copper (b) plastic (c) rubber (d) glass
  5. 5.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  6. 6.🧱 Which property matters most for the core of a wire? (a) electrical conductor (b) flexible (c) transparent (d) heat insulator
  7. 7.True or false: a car seat belt needs a flexible material. (a) False (b) True
  8. 8.True or false: a switch contact needs an electrical conductor. (a) True (b) False
  9. 9.🧱 Which material is best for a window pane? (a) steel (b) brick (c) wood (d) glass
  10. 10.🧱 Which material is best for a cooking pot handle? (a) aluminium (b) copper (c) iron (d) wood or plastic
  11. 11.🧱 Which material is best for a raincoat? (a) plastic-coated cloth (b) paper (c) cotton wool (d) cardboard
  12. 12.Which of these needs a transparent material? (a) a yoga mat (b) a window pane (c) a hair band (d) a roof sheet
  13. 13.🧱 Which material is best for the bars inside concrete? (a) plastic (b) glass (c) rubber (d) steel
  14. 14.Which of these needs a heat insulator? (a) a roof sheet (b) a skipping rope (c) a car windscreen (d) a tea flask lining
  15. 15.🧱 Is graphite an electrical conductor or an insulator? (a) a conductor (b) an insulator
  16. 16.True or false: a window pane needs a heat insulator. (a) True (b) False
  17. 17.True or false: a car windscreen needs a heat insulator. (a) True (b) False
  18. 18.🧱 Which property matters most for a plug pin? (a) waterproof (b) electrical conductor (c) flexible (d) transparent
  19. 19.🧱 Is rubber an electrical conductor or an insulator? (a) a conductor (b) an insulator
  20. 20.Which of these needs an electrical conductor? (a) a raincoat (b) the core of a wire (c) a tea flask lining (d) a skipping rope
  21. 21.🧱 Which material is best for the core of an electric wire? (a) rubber (b) wood (c) glass (d) copper
  22. 22.🔍 Which is the odd one out? (a) glass (b) clay pottery (c) dry wood (d) brass
  23. 23.🧱 Which property matters most for an umbrella cover? (a) transparent (b) waterproof (c) heat insulator (d) flexible
  24. 24.True or false: a water tank needs a waterproof material. (a) True (b) False
  25. 25.True or false: the core of a wire needs a waterproof material. (a) False (b) True
  26. 26.Which of these needs a waterproof material? (a) an oven glove (b) a skipping rope (c) a water tank (d) a window pane
  27. 27.True or false: a tea flask lining needs a transparent material. (a) True (b) False
  28. 28.Which of these needs a transparent material? (a) a hair band (b) a magnifier lens (c) a water tank (d) an oven glove
  29. 29.🔍 Which is the odd one out? (a) steel (b) clay pottery (c) brass (d) graphite
  30. 30.Which of these needs a heat insulator? (a) a hair band (b) a cooking pot handle (c) a skipping rope (d) a plug pin
  31. 31.True or false: an oven glove needs a heat insulator. (a) False (b) True
  32. 32.🧱 Which property matters most for a yoga mat? (a) flexible (b) transparent (c) heat insulator (d) waterproof
  33. 33.🧱 Is dry wood an electrical conductor or an insulator? (a) an insulator (b) a conductor
  34. 34.🧱 Which property matters most for a skipping rope? (a) electrical conductor (b) waterproof (c) flexible (d) heat insulator
  35. 35.True or false: a car seat belt needs a transparent material. (a) False (b) True
  36. 36.Which of these needs a flexible material? (a) an oven glove (b) a plug pin (c) a yoga mat (d) a switch contact
  37. 37.🧱 Is clay pottery 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) flexible (c) heat insulator (d) transparent
  39. 39.🧱 Is glass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  40. 40.🔍 Which is the odd one out? (a) copper (b) aluminium (c) steel (d) cotton cloth

Answer key

  1. aluminium
  2. a roof sheet
  3. a conductor
  4. copper
  5. a conductor
  6. electrical conductor
  7. True
  8. True
  9. glass
  10. wood or plastic
  11. plastic-coated cloth
  12. a window pane
  13. steel
  14. a tea flask lining
  15. a conductor
  16. False
  17. False
  18. electrical conductor
  19. an insulator
  20. the core of a wire
  21. copper
  22. brass
  23. waterproof
  24. True
  25. False
  26. a water tank
  27. False
  28. a magnifier lens
  29. clay pottery
  30. a cooking pot handle
  31. True
  32. flexible
  33. an insulator
  34. flexible
  35. False
  36. a yoga mat
  37. an insulator
  38. transparent
  39. an insulator
  40. cotton cloth

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