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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 388 · 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 magnifier lens? (a) waterproof (b) transparent (c) electrical conductor (d) flexible
  2. 2.Which of these needs a transparent material? (a) a magnifier lens (b) a boat hull (c) a plug pin (d) the core of a wire
  3. 3.True or false: a car windscreen needs a heat insulator. (a) True (b) False
  4. 4.True or false: a cooking pot handle needs a waterproof material. (a) True (b) False
  5. 5.🔍 Which is the odd one out? (a) graphite (b) aluminium (c) dry wood (d) brass
  6. 6.🧱 Which material is best for a raincoat? (a) cardboard (b) cotton wool (c) plastic-coated cloth (d) paper
  7. 7.🧱 Which property matters most for a boat hull? (a) flexible (b) transparent (c) waterproof (d) heat insulator
  8. 8.🧱 Which property matters most for a plug pin? (a) flexible (b) waterproof (c) electrical conductor (d) heat insulator
  9. 9.🔍 Which is the odd one out? (a) dry wood (b) rubber (c) graphite (d) clay pottery
  10. 10.🧱 Which material is best for the bars inside concrete? (a) glass (b) plastic (c) steel (d) rubber
  11. 11.Which of these needs an electrical conductor? (a) a roof sheet (b) a skipping rope (c) a plug pin (d) a boat hull
  12. 12.Which of these needs a flexible material? (a) a hair band (b) a cooking pot handle (c) a boat hull (d) a plug pin
  13. 13.True or false: a car windscreen needs a waterproof material. (a) True (b) False
  14. 14.🧱 Which property matters most for a car seat belt? (a) electrical conductor (b) transparent (c) flexible (d) waterproof
  15. 15.🧱 Which material is best for a window pane? (a) wood (b) brick (c) steel (d) glass
  16. 16.🧱 Which property matters most for a cooking pot handle? (a) flexible (b) waterproof (c) heat insulator (d) electrical conductor
  17. 17.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
  18. 18.Which of these needs a waterproof material? (a) an oven glove (b) a tea flask lining (c) a plug pin (d) a water tank
  19. 19.Which of these needs a heat insulator? (a) a water tank (b) a tea flask lining (c) a boat hull (d) the core of a wire
  20. 20.🧱 Which material is best for a cooking pot handle? (a) wood or plastic (b) copper (c) iron (d) aluminium
  21. 21.True or false: a yoga mat needs a waterproof material. (a) True (b) False
  22. 22.🧱 Is rubber an electrical conductor or an insulator? (a) a conductor (b) an insulator
  23. 23.🧱 Which material is best for the core of an electric wire? (a) rubber (b) glass (c) copper (d) wood
  24. 24.🔍 Which is the odd one out? (a) copper (b) clay pottery (c) plastic (d) rubber
  25. 25.True or false: a tea flask lining needs a heat insulator. (a) False (b) True
  26. 26.🧱 Which property matters most for a window pane? (a) electrical conductor (b) flexible (c) transparent (d) heat insulator
  27. 27.Which of these needs a waterproof material? (a) a hair band (b) a window pane (c) a tea flask lining (d) a raincoat
  28. 28.🧱 Which property matters most for a switch contact? (a) heat insulator (b) waterproof (c) electrical conductor (d) flexible
  29. 29.🔍 Which is the odd one out? (a) plastic (b) steel (c) copper (d) aluminium
  30. 30.🔍 Which is the odd one out? (a) steel (b) brass (c) graphite (d) cotton cloth
  31. 31.True or false: a plug pin needs a flexible material. (a) True (b) False
  32. 32.🧱 Which property matters most for a roof sheet? (a) waterproof (b) flexible (c) heat insulator (d) transparent
  33. 33.True or false: a water tank needs a heat insulator. (a) False (b) True
  34. 34.🧱 Is clay pottery an electrical conductor or an insulator? (a) an insulator (b) a conductor
  35. 35.Which of these needs a transparent material? (a) a car seat belt (b) a plug pin (c) an umbrella cover (d) a spectacle lens
  36. 36.True or false: a skipping rope needs an electrical conductor. (a) True (b) False
  37. 37.🧱 Which property matters most for a skipping rope? (a) transparent (b) electrical conductor (c) flexible (d) waterproof
  38. 38.Which of these needs a flexible material? (a) a tea flask lining (b) a roof sheet (c) a skipping rope (d) an umbrella cover
  39. 39.🧱 Is copper an electrical conductor or an insulator? (a) a conductor (b) an insulator
  40. 40.True or false: the core of a wire needs an electrical conductor. (a) False (b) True

Answer key

  1. transparent
  2. a magnifier lens
  3. False
  4. False
  5. dry wood
  6. plastic-coated cloth
  7. waterproof
  8. electrical conductor
  9. graphite
  10. steel
  11. a plug pin
  12. a hair band
  13. False
  14. flexible
  15. glass
  16. heat insulator
  17. a conductor
  18. a water tank
  19. a tea flask lining
  20. wood or plastic
  21. False
  22. an insulator
  23. copper
  24. copper
  25. True
  26. transparent
  27. a raincoat
  28. electrical conductor
  29. plastic
  30. cotton cloth
  31. False
  32. waterproof
  33. False
  34. an insulator
  35. a spectacle lens
  36. False
  37. flexible
  38. a skipping rope
  39. a conductor
  40. True

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