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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 663 · 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 hair band? (a) flexible (b) waterproof (c) heat insulator (d) electrical conductor
  2. 2.🧱 Is cotton cloth an electrical conductor or an insulator? (a) an insulator (b) a conductor
  3. 3.Which of these needs a heat insulator? (a) an umbrella cover (b) a raincoat (c) a switch contact (d) a tea flask lining
  4. 4.🧱 Which property matters most for a roof sheet? (a) transparent (b) waterproof (c) electrical conductor (d) heat insulator
  5. 5.🔍 Which is the odd one out? (a) glass (b) dry wood (c) plastic (d) copper
  6. 6.🧱 Which property matters most for a plug pin? (a) electrical conductor (b) waterproof (c) heat insulator (d) transparent
  7. 7.🧱 Which property matters most for a spectacle lens? (a) heat insulator (b) flexible (c) waterproof (d) transparent
  8. 8.🧱 Which property matters most for a car windscreen? (a) transparent (b) flexible (c) electrical conductor (d) waterproof
  9. 9.🧱 Which property matters most for a tea flask lining? (a) flexible (b) heat insulator (c) waterproof (d) electrical conductor
  10. 10.True or false: a roof sheet needs a waterproof material. (a) True (b) False
  11. 11.🧱 Which property matters most for the core of a wire? (a) heat insulator (b) waterproof (c) flexible (d) electrical conductor
  12. 12.🔍 Which is the odd one out? (a) graphite (b) rubber (c) iron (d) steel
  13. 13.🔍 Which is the odd one out? (a) dry wood (b) brass (c) glass (d) plastic
  14. 14.🧱 Which material is best for a window pane? (a) brick (b) wood (c) steel (d) glass
  15. 15.🔍 Which is the odd one out? (a) clay pottery (b) glass (c) iron (d) plastic
  16. 16.True or false: a water tank needs an electrical conductor. (a) True (b) False
  17. 17.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  18. 18.🧱 Which property matters most for an oven glove? (a) electrical conductor (b) heat insulator (c) flexible (d) waterproof
  19. 19.🔍 Which is the odd one out? (a) copper (b) aluminium (c) graphite (d) glass
  20. 20.🧱 Is brass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  21. 21.True or false: a switch contact needs an electrical conductor. (a) False (b) True
  22. 22.🧱 Is glass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  23. 23.Which of these needs a flexible material? (a) a hair band (b) a plug pin (c) an oven glove (d) a window pane
  24. 24.🧱 Which property matters most for a magnifier lens? (a) waterproof (b) transparent (c) heat insulator (d) electrical conductor
  25. 25.🧱 Which material is best for the bars inside concrete? (a) steel (b) glass (c) rubber (d) plastic
  26. 26.Which of these needs a waterproof material? (a) an umbrella cover (b) a window pane (c) a car windscreen (d) a car seat belt
  27. 27.True or false: a hair band needs a flexible material. (a) True (b) False
  28. 28.Which of these needs a waterproof material? (a) a skipping rope (b) a water tank (c) a spectacle lens (d) a car seat belt
  29. 29.Which of these needs a heat insulator? (a) a spectacle lens (b) a magnifier lens (c) a roof sheet (d) an oven glove
  30. 30.🧱 Which property matters most for a yoga mat? (a) flexible (b) electrical conductor (c) heat insulator (d) waterproof
  31. 31.True or false: a plug pin needs a transparent material. (a) True (b) False
  32. 32.🧱 Is dry wood an electrical conductor or an insulator? (a) a conductor (b) an insulator
  33. 33.Which of these needs an electrical conductor? (a) a raincoat (b) the core of a wire (c) a tea flask lining (d) a hair band
  34. 34.🧱 Is clay pottery an electrical conductor or an insulator? (a) an insulator (b) a conductor
  35. 35.🧱 Which property matters most for a switch contact? (a) waterproof (b) electrical conductor (c) flexible (d) transparent
  36. 36.Which of these needs a waterproof material? (a) a plug pin (b) a boat hull (c) a car seat belt (d) a skipping rope
  37. 37.🧱 Is graphite an electrical conductor or an insulator? (a) an insulator (b) a conductor
  38. 38.🧱 Which material is best for the core of an electric wire? (a) wood (b) rubber (c) copper (d) glass
  39. 39.Which of these needs a transparent material? (a) an umbrella cover (b) a yoga mat (c) a raincoat (d) a car windscreen
  40. 40.Which of these needs a flexible material? (a) a skipping rope (b) an umbrella cover (c) a raincoat (d) a window pane

Answer key

  1. flexible
  2. an insulator
  3. a tea flask lining
  4. waterproof
  5. copper
  6. electrical conductor
  7. transparent
  8. transparent
  9. heat insulator
  10. True
  11. electrical conductor
  12. rubber
  13. brass
  14. glass
  15. iron
  16. False
  17. a conductor
  18. heat insulator
  19. glass
  20. a conductor
  21. True
  22. an insulator
  23. a hair band
  24. transparent
  25. steel
  26. an umbrella cover
  27. True
  28. a water tank
  29. an oven glove
  30. flexible
  31. False
  32. an insulator
  33. the core of a wire
  34. an insulator
  35. electrical conductor
  36. a boat hull
  37. a conductor
  38. copper
  39. a car windscreen
  40. a skipping rope

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