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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 914 · 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 of these needs a heat insulator? (a) a roof sheet (b) a magnifier lens (c) a cooking pot handle (d) a boat hull
  2. 2.🔍 Which is the odd one out? (a) brass (b) steel (c) iron (d) plastic
  3. 3.🧱 Which material is best for the core of an electric wire? (a) wood (b) rubber (c) glass (d) copper
  4. 4.Which of these needs a flexible material? (a) a magnifier lens (b) the core of a wire (c) a car seat belt (d) a water tank
  5. 5.🧱 Which material is best for a raincoat? (a) cotton wool (b) paper (c) cardboard (d) plastic-coated cloth
  6. 6.🧱 Which property matters most for a boat hull? (a) waterproof (b) flexible (c) heat insulator (d) electrical conductor
  7. 7.Which of these needs an electrical conductor? (a) a yoga mat (b) a spectacle lens (c) a cooking pot handle (d) a switch contact
  8. 8.🧱 Which property matters most for a roof sheet? (a) transparent (b) flexible (c) waterproof (d) electrical conductor
  9. 9.Which of these needs a transparent material? (a) a cooking pot handle (b) the core of a wire (c) a tea flask lining (d) a magnifier lens
  10. 10.🧱 Which property matters most for a car seat belt? (a) electrical conductor (b) flexible (c) transparent (d) waterproof
  11. 11.Which of these needs a waterproof material? (a) a hair band (b) a skipping rope (c) a spectacle lens (d) a raincoat
  12. 12.🧱 Is dry wood an electrical conductor or an insulator? (a) a conductor (b) an insulator
  13. 13.True or false: a hair band needs a transparent material. (a) False (b) True
  14. 14.🧱 Is iron an electrical conductor or an insulator? (a) a conductor (b) an insulator
  15. 15.Which of these needs a flexible material? (a) a yoga mat (b) a cooking pot handle (c) a magnifier lens (d) an oven glove
  16. 16.🔍 Which is the odd one out? (a) iron (b) rubber (c) brass (d) copper
  17. 17.🧱 Which property matters most for a yoga mat? (a) heat insulator (b) electrical conductor (c) flexible (d) waterproof
  18. 18.🧱 Is steel an electrical conductor or an insulator? (a) a conductor (b) an insulator
  19. 19.🧱 Which property matters most for a hair band? (a) heat insulator (b) transparent (c) flexible (d) electrical conductor
  20. 20.🔍 Which is the odd one out? (a) rubber (b) clay pottery (c) dry wood (d) aluminium
  21. 21.🔍 Which is the odd one out? (a) rubber (b) iron (c) cotton cloth (d) plastic
  22. 22.True or false: a water tank needs a flexible material. (a) False (b) True
  23. 23.🧱 Is clay pottery an electrical conductor or an insulator? (a) a conductor (b) an insulator
  24. 24.Which of these needs a transparent material? (a) a car windscreen (b) an umbrella cover (c) the core of a wire (d) a raincoat
  25. 25.Which of these needs a heat insulator? (a) a magnifier lens (b) an oven glove (c) a switch contact (d) a raincoat
  26. 26.🔍 Which is the odd one out? (a) clay pottery (b) iron (c) brass (d) aluminium
  27. 27.Which of these needs a waterproof material? (a) a skipping rope (b) a car seat belt (c) a spectacle lens (d) an umbrella cover
  28. 28.🧱 Is cotton cloth an electrical conductor or an insulator? (a) a conductor (b) an insulator
  29. 29.🧱 Which property matters most for a plug pin? (a) waterproof (b) transparent (c) heat insulator (d) electrical conductor
  30. 30.🧱 Which property matters most for a spectacle lens? (a) electrical conductor (b) heat insulator (c) waterproof (d) transparent
  31. 31.🧱 Which material is best for a window pane? (a) wood (b) steel (c) brick (d) glass
  32. 32.🔍 Which is the odd one out? (a) steel (b) plastic (c) cotton cloth (d) rubber
  33. 33.True or false: a tea flask lining needs a heat insulator. (a) False (b) True
  34. 34.🧱 Is rubber an electrical conductor or an insulator? (a) a conductor (b) an insulator
  35. 35.True or false: a plug pin needs an electrical conductor. (a) True (b) False
  36. 36.True or false: a boat hull needs a transparent material. (a) False (b) True
  37. 37.True or false: a boat hull needs a waterproof material. (a) False (b) True
  38. 38.True or false: a roof sheet needs a waterproof material. (a) True (b) False
  39. 39.True or false: a magnifier lens needs a flexible material. (a) False (b) True
  40. 40.True or false: a skipping rope needs a flexible material. (a) True (b) False

Answer key

  1. a cooking pot handle
  2. plastic
  3. copper
  4. a car seat belt
  5. plastic-coated cloth
  6. waterproof
  7. a switch contact
  8. waterproof
  9. a magnifier lens
  10. flexible
  11. a raincoat
  12. an insulator
  13. False
  14. a conductor
  15. a yoga mat
  16. rubber
  17. flexible
  18. a conductor
  19. flexible
  20. aluminium
  21. iron
  22. False
  23. an insulator
  24. a car windscreen
  25. an oven glove
  26. clay pottery
  27. an umbrella cover
  28. an insulator
  29. electrical conductor
  30. transparent
  31. glass
  32. steel
  33. True
  34. an insulator
  35. True
  36. False
  37. True
  38. True
  39. False
  40. True

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