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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 885 · 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 of these needs an electrical conductor? (a) a switch contact (b) a raincoat (c) a boat hull (d) an oven glove
  2. 2.Which of these needs a transparent material? (a) a water tank (b) a car seat belt (c) a window pane (d) a yoga mat
  3. 3.🧱 Is brass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  4. 4.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  5. 5.True or false: an oven glove needs a heat insulator. (a) True (b) False
  6. 6.Which of these needs a transparent material? (a) a boat hull (b) a magnifier lens (c) a switch contact (d) the core of a wire
  7. 7.🧱 Which property matters most for a boat hull? (a) heat insulator (b) electrical conductor (c) waterproof (d) flexible
  8. 8.True or false: a boat hull needs a waterproof material. (a) True (b) False
  9. 9.🧱 Which property matters most for a car windscreen? (a) transparent (b) electrical conductor (c) flexible (d) waterproof
  10. 10.🧱 Which material is best for the core of an electric wire? (a) wood (b) rubber (c) copper (d) glass
  11. 11.True or false: a raincoat needs a heat insulator. (a) True (b) False
  12. 12.Which of these needs a heat insulator? (a) a hair band (b) a spectacle lens (c) a car seat belt (d) an oven glove
  13. 13.True or false: a raincoat needs a flexible material. (a) False (b) True
  14. 14.True or false: a plug pin needs a waterproof material. (a) True (b) False
  15. 15.🧱 Which material is best for a window pane? (a) glass (b) brick (c) steel (d) wood
  16. 16.🔍 Which is the odd one out? (a) plastic (b) aluminium (c) cotton cloth (d) rubber
  17. 17.Which of these needs a flexible material? (a) a roof sheet (b) a yoga mat (c) a boat hull (d) a water tank
  18. 18.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
  19. 19.🔍 Which is the odd one out? (a) brass (b) cotton cloth (c) rubber (d) dry wood
  20. 20.🔍 Which is the odd one out? (a) iron (b) aluminium (c) rubber (d) brass
  21. 21.🔍 Which is the odd one out? (a) graphite (b) cotton cloth (c) clay pottery (d) rubber
  22. 22.🔍 Which is the odd one out? (a) copper (b) aluminium (c) cotton cloth (d) brass
  23. 23.True or false: a spectacle lens needs a waterproof material. (a) False (b) True
  24. 24.🧱 Which property matters most for a car seat belt? (a) waterproof (b) flexible (c) transparent (d) heat insulator
  25. 25.Which of these needs a flexible material? (a) a tea flask lining (b) a skipping rope (c) a spectacle lens (d) a boat hull
  26. 26.🧱 Is cotton cloth an electrical conductor or an insulator? (a) a conductor (b) an insulator
  27. 27.🧱 Which property matters most for a tea flask lining? (a) heat insulator (b) flexible (c) waterproof (d) electrical conductor
  28. 28.🧱 Which property matters most for a water tank? (a) waterproof (b) transparent (c) electrical conductor (d) flexible
  29. 29.Which of these needs a heat insulator? (a) a boat hull (b) an umbrella cover (c) a tea flask lining (d) a spectacle lens
  30. 30.🔍 Which is the odd one out? (a) steel (b) copper (c) plastic (d) graphite
  31. 31.True or false: the core of a wire needs an electrical conductor. (a) False (b) True
  32. 32.🧱 Which property matters most for a window pane? (a) waterproof (b) transparent (c) flexible (d) heat insulator
  33. 33.🧱 Which property matters most for an oven glove? (a) waterproof (b) transparent (c) flexible (d) heat insulator
  34. 34.True or false: a roof sheet needs a heat insulator. (a) True (b) False
  35. 35.🧱 Which property matters most for a hair band? (a) flexible (b) electrical conductor (c) transparent (d) waterproof
  36. 36.🧱 Which property matters most for a roof sheet? (a) heat insulator (b) waterproof (c) flexible (d) electrical conductor
  37. 37.Which of these needs a waterproof material? (a) a skipping rope (b) an umbrella cover (c) a tea flask lining (d) a yoga mat
  38. 38.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  39. 39.Which of these needs a flexible material? (a) a water tank (b) a car windscreen (c) a hair band (d) an umbrella cover
  40. 40.Which of these needs a waterproof material? (a) a skipping rope (b) a tea flask lining (c) a cooking pot handle (d) a raincoat

Answer key

  1. a switch contact
  2. a window pane
  3. a conductor
  4. a conductor
  5. True
  6. a magnifier lens
  7. waterproof
  8. True
  9. transparent
  10. copper
  11. False
  12. an oven glove
  13. False
  14. False
  15. glass
  16. aluminium
  17. a yoga mat
  18. a conductor
  19. brass
  20. rubber
  21. graphite
  22. cotton cloth
  23. False
  24. flexible
  25. a skipping rope
  26. an insulator
  27. heat insulator
  28. waterproof
  29. a tea flask lining
  30. plastic
  31. True
  32. transparent
  33. heat insulator
  34. False
  35. flexible
  36. waterproof
  37. an umbrella cover
  38. a conductor
  39. a hair band
  40. a raincoat

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