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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 706 · 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) plastic (b) aluminium (c) graphite (d) brass
  2. 2.🧱 Which property matters most for a cooking pot handle? (a) transparent (b) waterproof (c) heat insulator (d) flexible
  3. 3.🧱 Which material is best for a cooking pot handle? (a) wood or plastic (b) iron (c) copper (d) aluminium
  4. 4.🧱 Which material is best for the core of an electric wire? (a) glass (b) rubber (c) copper (d) wood
  5. 5.Which of these needs an electrical conductor? (a) a window pane (b) the core of a wire (c) a raincoat (d) a car seat belt
  6. 6.🧱 Which property matters most for the core of a wire? (a) electrical conductor (b) flexible (c) waterproof (d) transparent
  7. 7.🔍 Which is the odd one out? (a) plastic (b) rubber (c) glass (d) copper
  8. 8.🧱 Which property matters most for a plug pin? (a) electrical conductor (b) flexible (c) waterproof (d) transparent
  9. 9.True or false: an oven glove needs a heat insulator. (a) True (b) False
  10. 10.🧱 Which material is best for the bars inside concrete? (a) rubber (b) plastic (c) glass (d) steel
  11. 11.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  12. 12.🧱 Which property matters most for a magnifier lens? (a) heat insulator (b) electrical conductor (c) transparent (d) waterproof
  13. 13.🧱 Which material is best for a raincoat? (a) plastic-coated cloth (b) cotton wool (c) paper (d) cardboard
  14. 14.🔍 Which is the odd one out? (a) brass (b) rubber (c) cotton cloth (d) clay pottery
  15. 15.🧱 Which property matters most for a window pane? (a) flexible (b) electrical conductor (c) heat insulator (d) transparent
  16. 16.Which of these needs a waterproof material? (a) a skipping rope (b) the core of a wire (c) a switch contact (d) a water tank
  17. 17.True or false: a cooking pot handle needs a transparent material. (a) False (b) True
  18. 18.🧱 Which property matters most for a roof sheet? (a) heat insulator (b) flexible (c) waterproof (d) electrical conductor
  19. 19.Which of these needs a heat insulator? (a) a window pane (b) a raincoat (c) a water tank (d) a cooking pot handle
  20. 20.🧱 Is graphite an electrical conductor or an insulator? (a) an insulator (b) a conductor
  21. 21.🔍 Which is the odd one out? (a) iron (b) brass (c) clay pottery (d) copper
  22. 22.True or false: a hair band needs a flexible material. (a) False (b) True
  23. 23.True or false: a magnifier lens needs a waterproof material. (a) False (b) True
  24. 24.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  25. 25.🧱 Which property matters most for a water tank? (a) flexible (b) electrical conductor (c) waterproof (d) heat insulator
  26. 26.🧱 Is dry wood an electrical conductor or an insulator? (a) a conductor (b) an insulator
  27. 27.🧱 Which property matters most for a raincoat? (a) heat insulator (b) waterproof (c) flexible (d) transparent
  28. 28.🧱 Which property matters most for a spectacle lens? (a) electrical conductor (b) waterproof (c) transparent (d) heat insulator
  29. 29.True or false: the core of a wire needs a waterproof material. (a) False (b) True
  30. 30.🔍 Which is the odd one out? (a) steel (b) rubber (c) brass (d) aluminium
  31. 31.True or false: an umbrella cover needs a waterproof material. (a) True (b) False
  32. 32.🔍 Which is the odd one out? (a) steel (b) graphite (c) glass (d) brass
  33. 33.True or false: a water tank needs a waterproof material. (a) False (b) True
  34. 34.True or false: a car windscreen needs a waterproof material. (a) False (b) True
  35. 35.🧱 Which property matters most for an umbrella cover? (a) flexible (b) heat insulator (c) waterproof (d) transparent
  36. 36.🔍 Which is the odd one out? (a) rubber (b) clay pottery (c) glass (d) graphite
  37. 37.🔍 Which is the odd one out? (a) plastic (b) aluminium (c) dry wood (d) rubber
  38. 38.🧱 Is glass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  39. 39.🧱 Is brass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  40. 40.🧱 Which property matters most for a skipping rope? (a) flexible (b) transparent (c) waterproof (d) electrical conductor

Answer key

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

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