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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 837 · 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 a heat insulator? (a) a skipping rope (b) the core of a wire (c) a tea flask lining (d) a yoga mat
  2. 2.🧱 Is cotton cloth an electrical conductor or an insulator? (a) an insulator (b) a conductor
  3. 3.🔍 Which is the odd one out? (a) clay pottery (b) brass (c) plastic (d) cotton cloth
  4. 4.🔍 Which is the odd one out? (a) aluminium (b) dry wood (c) iron (d) steel
  5. 5.🧱 Which property matters most for a hair band? (a) heat insulator (b) flexible (c) waterproof (d) transparent
  6. 6.🧱 Which property matters most for a water tank? (a) waterproof (b) electrical conductor (c) flexible (d) heat insulator
  7. 7.Which of these needs a heat insulator? (a) a switch contact (b) a roof sheet (c) a plug pin (d) a cooking pot handle
  8. 8.Which of these needs an electrical conductor? (a) a car seat belt (b) an umbrella cover (c) a tea flask lining (d) the core of a wire
  9. 9.🧱 Which property matters most for a boat hull? (a) transparent (b) flexible (c) heat insulator (d) waterproof
  10. 10.🧱 Which material is best for a window pane? (a) steel (b) wood (c) brick (d) glass
  11. 11.🔍 Which is the odd one out? (a) dry wood (b) clay pottery (c) glass (d) iron
  12. 12.True or false: a magnifier lens needs a flexible material. (a) False (b) True
  13. 13.🧱 Is steel an electrical conductor or an insulator? (a) a conductor (b) an insulator
  14. 14.🔍 Which is the odd one out? (a) iron (b) cotton cloth (c) copper (d) steel
  15. 15.True or false: a magnifier lens needs a heat insulator. (a) True (b) False
  16. 16.True or false: the core of a wire needs a flexible material. (a) True (b) False
  17. 17.🧱 Is plastic an electrical conductor or an insulator? (a) an insulator (b) a conductor
  18. 18.Which of these needs a transparent material? (a) a hair band (b) an umbrella cover (c) a spectacle lens (d) a raincoat
  19. 19.True or false: a cooking pot handle needs a heat insulator. (a) False (b) True
  20. 20.🔍 Which is the odd one out? (a) clay pottery (b) graphite (c) rubber (d) glass
  21. 21.🧱 Which material is best for the bars inside concrete? (a) steel (b) rubber (c) plastic (d) glass
  22. 22.True or false: a boat hull needs a waterproof material. (a) False (b) True
  23. 23.🧱 Which property matters most for a roof sheet? (a) flexible (b) heat insulator (c) waterproof (d) transparent
  24. 24.🧱 Which material is best for the core of an electric wire? (a) wood (b) glass (c) copper (d) rubber
  25. 25.🧱 Which property matters most for a tea flask lining? (a) waterproof (b) flexible (c) transparent (d) heat insulator
  26. 26.🧱 Is iron an electrical conductor or an insulator? (a) a conductor (b) an insulator
  27. 27.True or false: a plug pin needs a waterproof material. (a) True (b) False
  28. 28.🧱 Which property matters most for a car windscreen? (a) waterproof (b) flexible (c) transparent (d) heat insulator
  29. 29.True or false: a car seat belt needs a waterproof material. (a) True (b) False
  30. 30.Which of these needs a flexible material? (a) a roof sheet (b) a window pane (c) an umbrella cover (d) a skipping rope
  31. 31.True or false: a hair band needs a waterproof material. (a) False (b) True
  32. 32.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  33. 33.🧱 Is brass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  34. 34.🧱 Is clay pottery an electrical conductor or an insulator? (a) an insulator (b) a conductor
  35. 35.Which of these needs a flexible material? (a) a car windscreen (b) a switch contact (c) a roof sheet (d) a yoga mat
  36. 36.🧱 Which property matters most for a car seat belt? (a) electrical conductor (b) heat insulator (c) flexible (d) transparent
  37. 37.Which of these needs an electrical conductor? (a) a car seat belt (b) a water tank (c) a hair band (d) a plug pin
  38. 38.🧱 Which property matters most for a raincoat? (a) heat insulator (b) flexible (c) electrical conductor (d) waterproof
  39. 39.🧱 Is graphite an electrical conductor or an insulator? (a) an insulator (b) a conductor
  40. 40.🔍 Which is the odd one out? (a) aluminium (b) dry wood (c) cotton cloth (d) glass

Answer key

  1. a tea flask lining
  2. an insulator
  3. brass
  4. dry wood
  5. flexible
  6. waterproof
  7. a cooking pot handle
  8. the core of a wire
  9. waterproof
  10. glass
  11. iron
  12. False
  13. a conductor
  14. cotton cloth
  15. False
  16. False
  17. an insulator
  18. a spectacle lens
  19. True
  20. graphite
  21. steel
  22. True
  23. waterproof
  24. copper
  25. heat insulator
  26. a conductor
  27. False
  28. transparent
  29. False
  30. a skipping rope
  31. False
  32. a conductor
  33. a conductor
  34. an insulator
  35. a yoga mat
  36. flexible
  37. a plug pin
  38. waterproof
  39. a conductor
  40. aluminium

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