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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 752 · 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 is the odd one out? (a) graphite (b) plastic (c) brass (d) copper
  2. 2.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  3. 3.True or false: a yoga mat needs a flexible material. (a) False (b) True
  4. 4.🧱 Which property matters most for a yoga mat? (a) transparent (b) electrical conductor (c) heat insulator (d) flexible
  5. 5.🧱 Which property matters most for a spectacle lens? (a) transparent (b) waterproof (c) flexible (d) heat insulator
  6. 6.Which of these needs a transparent material? (a) a car seat belt (b) a raincoat (c) a hair band (d) a window pane
  7. 7.True or false: a water tank needs a waterproof material. (a) False (b) True
  8. 8.Which of these needs a waterproof material? (a) a yoga mat (b) a tea flask lining (c) a cooking pot handle (d) a water tank
  9. 9.True or false: a raincoat needs a waterproof material. (a) False (b) True
  10. 10.🧱 Which property matters most for a raincoat? (a) waterproof (b) heat insulator (c) transparent (d) flexible
  11. 11.🧱 Which property matters most for a skipping rope? (a) waterproof (b) flexible (c) transparent (d) electrical conductor
  12. 12.🧱 Is iron an electrical conductor or an insulator? (a) a conductor (b) an insulator
  13. 13.True or false: an umbrella cover needs a waterproof material. (a) False (b) True
  14. 14.🧱 Is clay pottery an electrical conductor or an insulator? (a) an insulator (b) a conductor
  15. 15.🧱 Which property matters most for a tea flask lining? (a) flexible (b) transparent (c) heat insulator (d) waterproof
  16. 16.Which of these needs a flexible material? (a) the core of a wire (b) a switch contact (c) an oven glove (d) a hair band
  17. 17.Which of these needs a waterproof material? (a) a skipping rope (b) a window pane (c) a boat hull (d) a spectacle lens
  18. 18.🧱 Is glass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  19. 19.🔍 Which is the odd one out? (a) graphite (b) steel (c) copper (d) glass
  20. 20.True or false: a boat hull needs a waterproof material. (a) False (b) True
  21. 21.🧱 Is rubber an electrical conductor or an insulator? (a) a conductor (b) an insulator
  22. 22.🧱 Which property matters most for an oven glove? (a) waterproof (b) electrical conductor (c) transparent (d) heat insulator
  23. 23.🧱 Which property matters most for a plug pin? (a) heat insulator (b) waterproof (c) flexible (d) electrical conductor
  24. 24.True or false: a cooking pot handle needs a transparent material. (a) False (b) True
  25. 25.True or false: the core of a wire needs a flexible material. (a) True (b) False
  26. 26.🧱 Which material is best for a window pane? (a) glass (b) brick (c) wood (d) steel
  27. 27.🧱 Which material is best for a raincoat? (a) paper (b) cardboard (c) plastic-coated cloth (d) cotton wool
  28. 28.🔍 Which is the odd one out? (a) dry wood (b) aluminium (c) graphite (d) iron
  29. 29.🧱 Which property matters most for a window pane? (a) heat insulator (b) waterproof (c) flexible (d) transparent
  30. 30.🔍 Which is the odd one out? (a) plastic (b) glass (c) aluminium (d) rubber
  31. 31.🧱 Is cotton cloth an electrical conductor or an insulator? (a) an insulator (b) a conductor
  32. 32.True or false: the core of a wire needs a waterproof material. (a) True (b) False
  33. 33.Which of these needs a flexible material? (a) a yoga mat (b) a raincoat (c) an oven glove (d) a switch contact
  34. 34.True or false: an oven glove needs a flexible material. (a) True (b) False
  35. 35.🔍 Which is the odd one out? (a) plastic (b) dry wood (c) rubber (d) brass
  36. 36.Which of these needs a waterproof material? (a) a roof sheet (b) a switch contact (c) a car seat belt (d) the core of a wire
  37. 37.🔍 Which is the odd one out? (a) cotton cloth (b) steel (c) glass (d) plastic
  38. 38.🔍 Which is the odd one out? (a) rubber (b) glass (c) iron (d) dry wood
  39. 39.True or false: the core of a wire needs a heat insulator. (a) True (b) False
  40. 40.Which of these needs a heat insulator? (a) a plug pin (b) the core of a wire (c) an oven glove (d) a roof sheet

Answer key

  1. plastic
  2. a conductor
  3. True
  4. flexible
  5. transparent
  6. a window pane
  7. True
  8. a water tank
  9. True
  10. waterproof
  11. flexible
  12. a conductor
  13. True
  14. an insulator
  15. heat insulator
  16. a hair band
  17. a boat hull
  18. an insulator
  19. glass
  20. True
  21. an insulator
  22. heat insulator
  23. electrical conductor
  24. False
  25. False
  26. glass
  27. plastic-coated cloth
  28. dry wood
  29. transparent
  30. aluminium
  31. an insulator
  32. False
  33. a yoga mat
  34. False
  35. brass
  36. a roof sheet
  37. steel
  38. iron
  39. False
  40. an oven glove

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