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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 331 · 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.True or false: an umbrella cover needs an electrical conductor. (a) True (b) False
  2. 2.🧱 Which property matters most for a magnifier lens? (a) waterproof (b) transparent (c) electrical conductor (d) heat insulator
  3. 3.Which of these needs a waterproof material? (a) an oven glove (b) a tea flask lining (c) a car seat belt (d) a water tank
  4. 4.🧱 Which property matters most for a car windscreen? (a) electrical conductor (b) flexible (c) heat insulator (d) transparent
  5. 5.True or false: a window pane needs a transparent material. (a) False (b) True
  6. 6.🔍 Which is the odd one out? (a) rubber (b) copper (c) steel (d) aluminium
  7. 7.🧱 Which property matters most for a hair band? (a) waterproof (b) transparent (c) flexible (d) heat insulator
  8. 8.Which of these needs a waterproof material? (a) a skipping rope (b) an oven glove (c) a boat hull (d) a plug pin
  9. 9.🧱 Which property matters most for a water tank? (a) heat insulator (b) electrical conductor (c) transparent (d) waterproof
  10. 10.🧱 Which material is best for a cooking pot handle? (a) copper (b) iron (c) aluminium (d) wood or plastic
  11. 11.Which of these needs a waterproof material? (a) the core of a wire (b) an umbrella cover (c) a switch contact (d) a yoga mat
  12. 12.True or false: a water tank needs a flexible material. (a) False (b) True
  13. 13.🔍 Which is the odd one out? (a) clay pottery (b) rubber (c) iron (d) plastic
  14. 14.🧱 Which property matters most for an oven glove? (a) electrical conductor (b) transparent (c) heat insulator (d) flexible
  15. 15.🧱 Which material is best for the core of an electric wire? (a) glass (b) copper (c) rubber (d) wood
  16. 16.True or false: a tea flask lining needs a heat insulator. (a) True (b) False
  17. 17.Which of these needs a transparent material? (a) a window pane (b) a hair band (c) a plug pin (d) an oven glove
  18. 18.🔍 Which is the odd one out? (a) plastic (b) graphite (c) brass (d) aluminium
  19. 19.🧱 Is steel an electrical conductor or an insulator? (a) a conductor (b) an insulator
  20. 20.True or false: a yoga mat needs a waterproof material. (a) False (b) True
  21. 21.🧱 Is rubber an electrical conductor or an insulator? (a) an insulator (b) a conductor
  22. 22.🧱 Which material is best for a window pane? (a) glass (b) brick (c) steel (d) wood
  23. 23.🔍 Which is the odd one out? (a) copper (b) steel (c) cotton cloth (d) graphite
  24. 24.Which of these needs a heat insulator? (a) a car windscreen (b) a window pane (c) a car seat belt (d) an oven glove
  25. 25.🔍 Which is the odd one out? (a) steel (b) rubber (c) dry wood (d) plastic
  26. 26.Which of these needs a flexible material? (a) a plug pin (b) a boat hull (c) a spectacle lens (d) a yoga mat
  27. 27.Which of these needs a heat insulator? (a) a skipping rope (b) the core of a wire (c) a car seat belt (d) a cooking pot handle
  28. 28.🧱 Is plastic an electrical conductor or an insulator? (a) an insulator (b) a conductor
  29. 29.🧱 Which property matters most for a plug pin? (a) electrical conductor (b) waterproof (c) heat insulator (d) transparent
  30. 30.True or false: a skipping rope needs an electrical conductor. (a) False (b) True
  31. 31.🧱 Which material is best for the bars inside concrete? (a) rubber (b) glass (c) steel (d) plastic
  32. 32.🧱 Which material is best for a raincoat? (a) cotton wool (b) paper (c) cardboard (d) plastic-coated cloth
  33. 33.Which of these needs a transparent material? (a) an oven glove (b) a skipping rope (c) a spectacle lens (d) a tea flask lining
  34. 34.True or false: a hair band needs a waterproof material. (a) True (b) False
  35. 35.True or false: a boat hull needs a waterproof material. (a) True (b) False
  36. 36.🧱 Is glass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  37. 37.Which of these needs a flexible material? (a) a cooking pot handle (b) a roof sheet (c) a car seat belt (d) a spectacle lens
  38. 38.🔍 Which is the odd one out? (a) glass (b) rubber (c) copper (d) cotton cloth
  39. 39.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  40. 40.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor

Answer key

  1. False
  2. transparent
  3. a water tank
  4. transparent
  5. True
  6. rubber
  7. flexible
  8. a boat hull
  9. waterproof
  10. wood or plastic
  11. an umbrella cover
  12. False
  13. iron
  14. heat insulator
  15. copper
  16. True
  17. a window pane
  18. plastic
  19. a conductor
  20. False
  21. an insulator
  22. glass
  23. cotton cloth
  24. an oven glove
  25. steel
  26. a yoga mat
  27. a cooking pot handle
  28. an insulator
  29. electrical conductor
  30. False
  31. steel
  32. plastic-coated cloth
  33. a spectacle lens
  34. False
  35. True
  36. an insulator
  37. a car seat belt
  38. copper
  39. a conductor
  40. a conductor

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