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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 57 · 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 window pane? (a) transparent (b) flexible (c) electrical conductor (d) waterproof
  2. 2.🔍 Which is the odd one out? (a) graphite (b) plastic (c) steel (d) copper
  3. 3.🔍 Which is the odd one out? (a) dry wood (b) graphite (c) copper (d) aluminium
  4. 4.True or false: a yoga mat needs a flexible material. (a) True (b) False
  5. 5.True or false: a yoga mat needs a waterproof material. (a) True (b) False
  6. 6.🧱 Is iron an electrical conductor or an insulator? (a) a conductor (b) an insulator
  7. 7.🧱 Which property matters most for a tea flask lining? (a) flexible (b) electrical conductor (c) heat insulator (d) transparent
  8. 8.🧱 Is dry wood an electrical conductor or an insulator? (a) an insulator (b) a conductor
  9. 9.🧱 Which material is best for the core of an electric wire? (a) rubber (b) wood (c) glass (d) copper
  10. 10.True or false: a magnifier lens needs a waterproof material. (a) True (b) False
  11. 11.🧱 Which material is best for a window pane? (a) brick (b) steel (c) wood (d) glass
  12. 12.True or false: a tea flask lining needs a heat insulator. (a) False (b) True
  13. 13.True or false: a boat hull needs a waterproof material. (a) False (b) True
  14. 14.🧱 Is aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
  15. 15.🧱 Which property matters most for an umbrella cover? (a) waterproof (b) heat insulator (c) flexible (d) electrical conductor
  16. 16.🧱 Which property matters most for a switch contact? (a) heat insulator (b) electrical conductor (c) transparent (d) waterproof
  17. 17.Which of these needs a heat insulator? (a) a skipping rope (b) a cooking pot handle (c) a yoga mat (d) an umbrella cover
  18. 18.Which of these needs a flexible material? (a) a car windscreen (b) a tea flask lining (c) a hair band (d) a raincoat
  19. 19.True or false: a window pane needs a transparent material. (a) False (b) True
  20. 20.🧱 Which property matters most for a yoga mat? (a) transparent (b) heat insulator (c) flexible (d) electrical conductor
  21. 21.Which of these needs a transparent material? (a) a roof sheet (b) a car windscreen (c) the core of a wire (d) an umbrella cover
  22. 22.Which of these needs a heat insulator? (a) a water tank (b) the core of a wire (c) a raincoat (d) an oven glove
  23. 23.🧱 Which property matters most for a car windscreen? (a) flexible (b) waterproof (c) heat insulator (d) transparent
  24. 24.🧱 Which property matters most for a plug pin? (a) electrical conductor (b) flexible (c) heat insulator (d) waterproof
  25. 25.Which of these needs a flexible material? (a) a car windscreen (b) a skipping rope (c) a window pane (d) an oven glove
  26. 26.🧱 Which property matters most for a water tank? (a) electrical conductor (b) heat insulator (c) flexible (d) waterproof
  27. 27.🧱 Is copper an electrical conductor or an insulator? (a) a conductor (b) an insulator
  28. 28.Which of these needs a transparent material? (a) a roof sheet (b) a magnifier lens (c) a raincoat (d) a tea flask lining
  29. 29.Which of these needs an electrical conductor? (a) an oven glove (b) a switch contact (c) a car windscreen (d) a hair band
  30. 30.🧱 Which material is best for the bars inside concrete? (a) rubber (b) plastic (c) glass (d) steel
  31. 31.🧱 Which property matters most for the core of a wire? (a) heat insulator (b) electrical conductor (c) waterproof (d) flexible
  32. 32.True or false: a tea flask lining needs a flexible material. (a) False (b) True
  33. 33.Which of these needs a transparent material? (a) a raincoat (b) an oven glove (c) a boat hull (d) a spectacle lens
  34. 34.🧱 Which property matters most for a boat hull? (a) flexible (b) waterproof (c) electrical conductor (d) heat insulator
  35. 35.True or false: a switch contact needs an electrical conductor. (a) True (b) False
  36. 36.Which of these needs a waterproof material? (a) a car seat belt (b) a magnifier lens (c) a plug pin (d) a raincoat
  37. 37.🧱 Is graphite an electrical conductor or an insulator? (a) a conductor (b) an insulator
  38. 38.Which of these needs a transparent material? (a) a water tank (b) a raincoat (c) a window pane (d) a skipping rope
  39. 39.🔍 Which is the odd one out? (a) iron (b) cotton cloth (c) rubber (d) clay pottery
  40. 40.🧱 Which property matters most for a car seat belt? (a) heat insulator (b) waterproof (c) transparent (d) flexible

Answer key

  1. transparent
  2. plastic
  3. dry wood
  4. True
  5. False
  6. a conductor
  7. heat insulator
  8. an insulator
  9. copper
  10. False
  11. glass
  12. True
  13. True
  14. a conductor
  15. waterproof
  16. electrical conductor
  17. a cooking pot handle
  18. a hair band
  19. True
  20. flexible
  21. a car windscreen
  22. an oven glove
  23. transparent
  24. electrical conductor
  25. a skipping rope
  26. waterproof
  27. a conductor
  28. a magnifier lens
  29. a switch contact
  30. steel
  31. electrical conductor
  32. False
  33. a spectacle lens
  34. waterproof
  35. True
  36. a raincoat
  37. a conductor
  38. a window pane
  39. iron
  40. flexible

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