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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 257 · 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 material is best for the core of an electric wire? (a) copper (b) glass (c) rubber (d) wood
  2. 2.🧱 Which property matters most for a car seat belt? (a) heat insulator (b) transparent (c) flexible (d) electrical conductor
  3. 3.🧱 Which property matters most for a raincoat? (a) heat insulator (b) flexible (c) waterproof (d) electrical conductor
  4. 4.🧱 Which material is best for the bars inside concrete? (a) rubber (b) plastic (c) steel (d) glass
  5. 5.True or false: a magnifier lens needs a transparent material. (a) True (b) False
  6. 6.True or false: a yoga mat needs a flexible material. (a) True (b) False
  7. 7.Which of these needs a waterproof material? (a) a switch contact (b) a window pane (c) an umbrella cover (d) an oven glove
  8. 8.🧱 Which property matters most for a hair band? (a) heat insulator (b) waterproof (c) flexible (d) electrical conductor
  9. 9.🔍 Which is the odd one out? (a) graphite (b) dry wood (c) rubber (d) cotton cloth
  10. 10.🧱 Which property matters most for a spectacle lens? (a) electrical conductor (b) transparent (c) waterproof (d) flexible
  11. 11.🧱 Is iron an electrical conductor or an insulator? (a) a conductor (b) an insulator
  12. 12.🧱 Which property matters most for a water tank? (a) heat insulator (b) waterproof (c) transparent (d) flexible
  13. 13.True or false: a switch contact needs a waterproof material. (a) True (b) False
  14. 14.🧱 Which property matters most for a magnifier lens? (a) electrical conductor (b) flexible (c) heat insulator (d) transparent
  15. 15.True or false: a skipping rope needs an electrical conductor. (a) True (b) False
  16. 16.🧱 Is rubber an electrical conductor or an insulator? (a) an insulator (b) a conductor
  17. 17.🔍 Which is the odd one out? (a) aluminium (b) iron (c) graphite (d) clay pottery
  18. 18.🔍 Which is the odd one out? (a) steel (b) dry wood (c) rubber (d) glass
  19. 19.Which of these needs a heat insulator? (a) a skipping rope (b) a tea flask lining (c) the core of a wire (d) a hair band
  20. 20.🧱 Which material is best for a window pane? (a) steel (b) glass (c) wood (d) brick
  21. 21.Which of these needs a waterproof material? (a) a skipping rope (b) a car seat belt (c) a cooking pot handle (d) a boat hull
  22. 22.Which of these needs a transparent material? (a) a boat hull (b) a raincoat (c) a switch contact (d) a spectacle lens
  23. 23.🧱 Which material is best for a raincoat? (a) cardboard (b) plastic-coated cloth (c) cotton wool (d) paper
  24. 24.🧱 Is glass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  25. 25.True or false: an oven glove needs a heat insulator. (a) True (b) False
  26. 26.🧱 Which property matters most for a plug pin? (a) flexible (b) transparent (c) electrical conductor (d) waterproof
  27. 27.Which of these needs a flexible material? (a) the core of a wire (b) a boat hull (c) a hair band (d) a raincoat
  28. 28.Which of these needs a heat insulator? (a) a car windscreen (b) a yoga mat (c) a spectacle lens (d) an oven glove
  29. 29.🧱 Which property matters most for a roof sheet? (a) waterproof (b) flexible (c) electrical conductor (d) transparent
  30. 30.🧱 Is clay pottery an electrical conductor or an insulator? (a) a conductor (b) an insulator
  31. 31.🔍 Which is the odd one out? (a) copper (b) aluminium (c) plastic (d) graphite
  32. 32.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  33. 33.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  34. 34.🔍 Which is the odd one out? (a) aluminium (b) cotton cloth (c) plastic (d) clay pottery
  35. 35.Which of these needs a transparent material? (a) a skipping rope (b) a window pane (c) a cooking pot handle (d) a plug pin
  36. 36.🔍 Which is the odd one out? (a) cotton cloth (b) glass (c) copper (d) dry wood
  37. 37.True or false: a switch contact needs a flexible material. (a) True (b) False
  38. 38.🧱 Which property matters most for an oven glove? (a) waterproof (b) heat insulator (c) flexible (d) transparent
  39. 39.Which of these needs a flexible material? (a) an umbrella cover (b) a raincoat (c) a skipping rope (d) a cooking pot handle
  40. 40.Which of these needs an electrical conductor? (a) the core of a wire (b) a water tank (c) an umbrella cover (d) an oven glove

Answer key

  1. copper
  2. flexible
  3. waterproof
  4. steel
  5. True
  6. True
  7. an umbrella cover
  8. flexible
  9. graphite
  10. transparent
  11. a conductor
  12. waterproof
  13. False
  14. transparent
  15. False
  16. an insulator
  17. clay pottery
  18. steel
  19. a tea flask lining
  20. glass
  21. a boat hull
  22. a spectacle lens
  23. plastic-coated cloth
  24. an insulator
  25. True
  26. electrical conductor
  27. a hair band
  28. an oven glove
  29. waterproof
  30. an insulator
  31. plastic
  32. a conductor
  33. a conductor
  34. aluminium
  35. a window pane
  36. copper
  37. False
  38. heat insulator
  39. a skipping rope
  40. the core of a wire

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