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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 406 · 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 the core of an electric wire? (a) glass (b) wood (c) copper (d) rubber
  2. 2.🔍 Which is the odd one out? (a) brass (b) copper (c) rubber (d) aluminium
  3. 3.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  4. 4.True or false: an umbrella cover needs a transparent material. (a) True (b) False
  5. 5.🔍 Which is the odd one out? (a) cotton cloth (b) rubber (c) steel (d) clay pottery
  6. 6.True or false: a yoga mat needs a flexible material. (a) True (b) False
  7. 7.🧱 Which property matters most for a roof sheet? (a) flexible (b) heat insulator (c) electrical conductor (d) waterproof
  8. 8.True or false: the core of a wire needs a transparent material. (a) False (b) True
  9. 9.True or false: a boat hull needs a heat insulator. (a) False (b) True
  10. 10.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  11. 11.🧱 Which material is best for a window pane? (a) steel (b) wood (c) glass (d) brick
  12. 12.🧱 Which property matters most for a plug pin? (a) waterproof (b) electrical conductor (c) flexible (d) heat insulator
  13. 13.Which of these needs a waterproof material? (a) an umbrella cover (b) a plug pin (c) a cooking pot handle (d) a hair band
  14. 14.🧱 Which property matters most for a window pane? (a) waterproof (b) flexible (c) electrical conductor (d) transparent
  15. 15.🔍 Which is the odd one out? (a) aluminium (b) iron (c) steel (d) plastic
  16. 16.Which of these needs a heat insulator? (a) a switch contact (b) a car windscreen (c) an umbrella cover (d) a tea flask lining
  17. 17.True or false: the core of a wire needs a heat insulator. (a) True (b) False
  18. 18.🧱 Which property matters most for a tea flask lining? (a) heat insulator (b) waterproof (c) electrical conductor (d) flexible
  19. 19.Which of these needs a waterproof material? (a) the core of a wire (b) a hair band (c) a water tank (d) a tea flask lining
  20. 20.True or false: a spectacle lens needs a flexible material. (a) False (b) True
  21. 21.🧱 Which material is best for the bars inside concrete? (a) glass (b) plastic (c) rubber (d) steel
  22. 22.True or false: a cooking pot handle needs a transparent material. (a) True (b) False
  23. 23.Which of these needs an electrical conductor? (a) a water tank (b) an umbrella cover (c) a switch contact (d) a hair band
  24. 24.True or false: a roof sheet needs a waterproof material. (a) False (b) True
  25. 25.True or false: a plug pin needs an electrical conductor. (a) True (b) False
  26. 26.True or false: an oven glove needs a flexible material. (a) True (b) False
  27. 27.🧱 Is rubber an electrical conductor or an insulator? (a) a conductor (b) an insulator
  28. 28.🧱 Is clay pottery an electrical conductor or an insulator? (a) a conductor (b) an insulator
  29. 29.Which of these needs a flexible material? (a) a raincoat (b) a switch contact (c) a boat hull (d) a skipping rope
  30. 30.🔍 Which is the odd one out? (a) iron (b) aluminium (c) dry wood (d) steel
  31. 31.🧱 Which property matters most for a yoga mat? (a) transparent (b) heat insulator (c) flexible (d) waterproof
  32. 32.🔍 Which is the odd one out? (a) cotton cloth (b) dry wood (c) graphite (d) plastic
  33. 33.🧱 Which property matters most for a water tank? (a) transparent (b) waterproof (c) flexible (d) heat insulator
  34. 34.🧱 Is brass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  35. 35.🧱 Which material is best for a cooking pot handle? (a) aluminium (b) copper (c) wood or plastic (d) iron
  36. 36.Which of these needs a transparent material? (a) a plug pin (b) a tea flask lining (c) a car windscreen (d) a switch contact
  37. 37.True or false: a hair band needs a waterproof material. (a) True (b) False
  38. 38.Which of these needs an electrical conductor? (a) a boat hull (b) a magnifier lens (c) a spectacle lens (d) a plug pin
  39. 39.True or false: an umbrella cover needs a waterproof material. (a) False (b) True
  40. 40.Which of these needs a flexible material? (a) a raincoat (b) a boat hull (c) a roof sheet (d) a yoga mat

Answer key

  1. copper
  2. rubber
  3. a conductor
  4. False
  5. steel
  6. True
  7. waterproof
  8. False
  9. False
  10. a conductor
  11. glass
  12. electrical conductor
  13. an umbrella cover
  14. transparent
  15. plastic
  16. a tea flask lining
  17. False
  18. heat insulator
  19. a water tank
  20. False
  21. steel
  22. False
  23. a switch contact
  24. True
  25. True
  26. False
  27. an insulator
  28. an insulator
  29. a skipping rope
  30. dry wood
  31. flexible
  32. graphite
  33. waterproof
  34. a conductor
  35. wood or plastic
  36. a car windscreen
  37. False
  38. a plug pin
  39. True
  40. a yoga mat

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