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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 256 · 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) copper (b) clay pottery (c) dry wood (d) rubber
  2. 2.🧱 Is glass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  3. 3.🧱 Which property matters most for a yoga mat? (a) flexible (b) transparent (c) heat insulator (d) electrical conductor
  4. 4.🧱 Which material is best for the core of an electric wire? (a) rubber (b) glass (c) wood (d) copper
  5. 5.🧱 Which material is best for a raincoat? (a) plastic-coated cloth (b) cardboard (c) cotton wool (d) paper
  6. 6.True or false: a boat hull needs a transparent material. (a) True (b) False
  7. 7.🧱 Which property matters most for a spectacle lens? (a) transparent (b) flexible (c) waterproof (d) heat insulator
  8. 8.Which of these needs a waterproof material? (a) a tea flask lining (b) a plug pin (c) a skipping rope (d) a water tank
  9. 9.🔍 Which is the odd one out? (a) steel (b) iron (c) graphite (d) rubber
  10. 10.Which of these needs a heat insulator? (a) a skipping rope (b) a raincoat (c) a yoga mat (d) an oven glove
  11. 11.True or false: a tea flask lining needs a heat insulator. (a) True (b) False
  12. 12.🔍 Which is the odd one out? (a) copper (b) iron (c) brass (d) plastic
  13. 13.True or false: a window pane needs a transparent material. (a) True (b) False
  14. 14.🧱 Which property matters most for a car seat belt? (a) flexible (b) electrical conductor (c) transparent (d) heat insulator
  15. 15.True or false: a car seat belt needs a waterproof material. (a) True (b) False
  16. 16.🔍 Which is the odd one out? (a) copper (b) graphite (c) iron (d) clay pottery
  17. 17.🧱 Which material is best for a window pane? (a) brick (b) wood (c) steel (d) glass
  18. 18.🧱 Which property matters most for an oven glove? (a) waterproof (b) transparent (c) flexible (d) heat insulator
  19. 19.🧱 Which property matters most for the core of a wire? (a) transparent (b) flexible (c) electrical conductor (d) heat insulator
  20. 20.🧱 Is dry wood an electrical conductor or an insulator? (a) an insulator (b) a conductor
  21. 21.🧱 Is iron an electrical conductor or an insulator? (a) a conductor (b) an insulator
  22. 22.🔍 Which is the odd one out? (a) cotton cloth (b) dry wood (c) plastic (d) iron
  23. 23.🔍 Which is the odd one out? (a) steel (b) dry wood (c) graphite (d) brass
  24. 24.Which of these needs an electrical conductor? (a) a boat hull (b) the core of a wire (c) an umbrella cover (d) a skipping rope
  25. 25.🧱 Which property matters most for a water tank? (a) electrical conductor (b) flexible (c) waterproof (d) heat insulator
  26. 26.True or false: a plug pin needs an electrical conductor. (a) False (b) True
  27. 27.🧱 Which property matters most for an umbrella cover? (a) flexible (b) transparent (c) waterproof (d) electrical conductor
  28. 28.🧱 Which property matters most for a switch contact? (a) electrical conductor (b) heat insulator (c) transparent (d) waterproof
  29. 29.Which of these needs a waterproof material? (a) a yoga mat (b) a skipping rope (c) a raincoat (d) an oven glove
  30. 30.🧱 Which material is best for the bars inside concrete? (a) steel (b) plastic (c) rubber (d) glass
  31. 31.Which of these needs a flexible material? (a) a spectacle lens (b) an umbrella cover (c) a window pane (d) a car seat belt
  32. 32.True or false: a hair band needs a flexible material. (a) True (b) False
  33. 33.🔍 Which is the odd one out? (a) brass (b) copper (c) glass (d) aluminium
  34. 34.🔍 Which is the odd one out? (a) graphite (b) brass (c) cotton cloth (d) iron
  35. 35.🧱 Is clay pottery an electrical conductor or an insulator? (a) a conductor (b) an insulator
  36. 36.🧱 Is aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
  37. 37.True or false: a magnifier lens needs a transparent material. (a) False (b) True
  38. 38.Which of these needs a flexible material? (a) a tea flask lining (b) a skipping rope (c) a water tank (d) a roof sheet
  39. 39.True or false: a raincoat needs a heat insulator. (a) True (b) False
  40. 40.🧱 Which property matters most for a magnifier lens? (a) transparent (b) waterproof (c) electrical conductor (d) flexible

Answer key

  1. copper
  2. an insulator
  3. flexible
  4. copper
  5. plastic-coated cloth
  6. False
  7. transparent
  8. a water tank
  9. rubber
  10. an oven glove
  11. True
  12. plastic
  13. True
  14. flexible
  15. False
  16. clay pottery
  17. glass
  18. heat insulator
  19. electrical conductor
  20. an insulator
  21. a conductor
  22. iron
  23. dry wood
  24. the core of a wire
  25. waterproof
  26. True
  27. waterproof
  28. electrical conductor
  29. a raincoat
  30. steel
  31. a car seat belt
  32. True
  33. glass
  34. cotton cloth
  35. an insulator
  36. a conductor
  37. True
  38. a skipping rope
  39. False
  40. transparent

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