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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 569 · 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 property matters most for a cooking pot handle? (a) waterproof (b) flexible (c) heat insulator (d) transparent
  2. 2.Which of these needs an electrical conductor? (a) a boat hull (b) the core of a wire (c) a tea flask lining (d) a water tank
  3. 3.True or false: a magnifier lens needs a transparent material. (a) False (b) True
  4. 4.True or false: a car windscreen needs a transparent material. (a) True (b) False
  5. 5.Which of these needs a transparent material? (a) a car seat belt (b) a skipping rope (c) a roof sheet (d) a window pane
  6. 6.🧱 Which material is best for a cooking pot handle? (a) iron (b) copper (c) aluminium (d) wood or plastic
  7. 7.🧱 Which material is best for the core of an electric wire? (a) rubber (b) copper (c) wood (d) glass
  8. 8.Which of these needs a heat insulator? (a) a water tank (b) an umbrella cover (c) a roof sheet (d) a tea flask lining
  9. 9.🧱 Which property matters most for a switch contact? (a) flexible (b) waterproof (c) electrical conductor (d) heat insulator
  10. 10.True or false: a switch contact needs a flexible material. (a) True (b) False
  11. 11.🔍 Which is the odd one out? (a) plastic (b) graphite (c) aluminium (d) brass
  12. 12.🧱 Which material is best for a window pane? (a) glass (b) brick (c) wood (d) steel
  13. 13.🔍 Which is the odd one out? (a) copper (b) aluminium (c) dry wood (d) steel
  14. 14.True or false: an umbrella cover needs a waterproof material. (a) True (b) False
  15. 15.True or false: a water tank needs a heat insulator. (a) False (b) True
  16. 16.True or false: the core of a wire needs an electrical conductor. (a) True (b) False
  17. 17.True or false: a car seat belt needs a heat insulator. (a) True (b) False
  18. 18.Which of these needs a flexible material? (a) a tea flask lining (b) a window pane (c) a hair band (d) the core of a wire
  19. 19.Which of these needs a waterproof material? (a) a car seat belt (b) a hair band (c) the core of a wire (d) an umbrella cover
  20. 20.True or false: a tea flask lining needs a heat insulator. (a) False (b) True
  21. 21.🧱 Which property matters most for a window pane? (a) flexible (b) waterproof (c) electrical conductor (d) transparent
  22. 22.True or false: a switch contact needs an electrical conductor. (a) True (b) False
  23. 23.🧱 Is graphite an electrical conductor or an insulator? (a) a conductor (b) an insulator
  24. 24.Which of these needs a waterproof material? (a) a tea flask lining (b) a boat hull (c) a yoga mat (d) a plug pin
  25. 25.🔍 Which is the odd one out? (a) brass (b) steel (c) rubber (d) aluminium
  26. 26.🧱 Is clay pottery an electrical conductor or an insulator? (a) an insulator (b) a conductor
  27. 27.Which of these needs a transparent material? (a) a yoga mat (b) a hair band (c) a magnifier lens (d) a boat hull
  28. 28.True or false: a raincoat needs a flexible material. (a) True (b) False
  29. 29.🧱 Is cotton cloth an electrical conductor or an insulator? (a) a conductor (b) an insulator
  30. 30.🧱 Which property matters most for a plug pin? (a) transparent (b) electrical conductor (c) waterproof (d) flexible
  31. 31.🧱 Is rubber an electrical conductor or an insulator? (a) an insulator (b) a conductor
  32. 32.🧱 Which material is best for a raincoat? (a) plastic-coated cloth (b) cardboard (c) paper (d) cotton wool
  33. 33.🧱 Which property matters most for an oven glove? (a) flexible (b) transparent (c) electrical conductor (d) heat insulator
  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) brass (b) copper (c) clay pottery (d) steel
  36. 36.True or false: a car windscreen needs a flexible material. (a) False (b) True
  37. 37.Which of these needs a waterproof material? (a) an oven glove (b) a spectacle lens (c) a cooking pot handle (d) a water tank
  38. 38.🧱 Which property matters most for an umbrella cover? (a) heat insulator (b) transparent (c) electrical conductor (d) waterproof
  39. 39.Which of these needs a heat insulator? (a) a water tank (b) a car seat belt (c) a cooking pot handle (d) a roof sheet
  40. 40.🧱 Is steel an electrical conductor or an insulator? (a) a conductor (b) an insulator

Answer key

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

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