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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 702 · 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 transparent material? (a) a spectacle lens (b) a hair band (c) a water tank (d) a raincoat
  2. 2.🧱 Is iron an electrical conductor or an insulator? (a) a conductor (b) an insulator
  3. 3.Which of these needs a flexible material? (a) a skipping rope (b) an oven glove (c) a magnifier lens (d) a boat hull
  4. 4.🧱 Is cotton cloth an electrical conductor or an insulator? (a) an insulator (b) a conductor
  5. 5.🧱 Which property matters most for a magnifier lens? (a) transparent (b) flexible (c) heat insulator (d) waterproof
  6. 6.🧱 Is rubber an electrical conductor or an insulator? (a) a conductor (b) an insulator
  7. 7.🧱 Which material is best for a window pane? (a) brick (b) steel (c) wood (d) glass
  8. 8.🧱 Which property matters most for a roof sheet? (a) waterproof (b) heat insulator (c) flexible (d) transparent
  9. 9.True or false: a car seat belt needs a waterproof material. (a) True (b) False
  10. 10.Which of these needs a waterproof material? (a) a cooking pot handle (b) a hair band (c) a plug pin (d) a raincoat
  11. 11.🔍 Which is the odd one out? (a) copper (b) iron (c) steel (d) clay pottery
  12. 12.🧱 Which material is best for a raincoat? (a) paper (b) plastic-coated cloth (c) cotton wool (d) cardboard
  13. 13.🧱 Which property matters most for a boat hull? (a) flexible (b) transparent (c) heat insulator (d) waterproof
  14. 14.🧱 Which material is best for the core of an electric wire? (a) rubber (b) copper (c) glass (d) wood
  15. 15.True or false: a switch contact needs an electrical conductor. (a) True (b) False
  16. 16.🧱 Which property matters most for a yoga mat? (a) flexible (b) waterproof (c) heat insulator (d) electrical conductor
  17. 17.🧱 Which material is best for the bars inside concrete? (a) plastic (b) glass (c) steel (d) rubber
  18. 18.Which of these needs a waterproof material? (a) a cooking pot handle (b) the core of a wire (c) a tea flask lining (d) a boat hull
  19. 19.🧱 Which material is best for a cooking pot handle? (a) aluminium (b) wood or plastic (c) iron (d) copper
  20. 20.True or false: a cooking pot handle needs a heat insulator. (a) False (b) True
  21. 21.Which of these needs a flexible material? (a) a car windscreen (b) a raincoat (c) a car seat belt (d) a spectacle lens
  22. 22.🔍 Which is the odd one out? (a) copper (b) plastic (c) cotton cloth (d) glass
  23. 23.True or false: a window pane needs a heat insulator. (a) False (b) True
  24. 24.True or false: a water tank needs a waterproof material. (a) True (b) False
  25. 25.Which of these needs a transparent material? (a) an umbrella cover (b) a car seat belt (c) a car windscreen (d) an oven glove
  26. 26.True or false: a hair band needs a waterproof material. (a) True (b) False
  27. 27.🧱 Which property matters most for an umbrella cover? (a) transparent (b) flexible (c) electrical conductor (d) waterproof
  28. 28.🔍 Which is the odd one out? (a) clay pottery (b) dry wood (c) rubber (d) graphite
  29. 29.True or false: a water tank needs an electrical conductor. (a) True (b) False
  30. 30.True or false: a skipping rope needs a waterproof material. (a) True (b) False
  31. 31.True or false: a tea flask lining needs an electrical conductor. (a) False (b) True
  32. 32.True or false: a spectacle lens needs a transparent material. (a) True (b) False
  33. 33.Which of these needs a transparent material? (a) the core of a wire (b) a boat hull (c) an umbrella cover (d) a window pane
  34. 34.🧱 Is brass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  35. 35.Which of these needs a heat insulator? (a) an oven glove (b) a roof sheet (c) a raincoat (d) a window pane
  36. 36.True or false: a tea flask lining needs a heat insulator. (a) True (b) False
  37. 37.True or false: a yoga mat needs a transparent material. (a) True (b) False
  38. 38.🔍 Which is the odd one out? (a) cotton cloth (b) rubber (c) iron (d) glass
  39. 39.True or false: a cooking pot handle needs a waterproof material. (a) False (b) True
  40. 40.🧱 Which property matters most for a cooking pot handle? (a) waterproof (b) flexible (c) electrical conductor (d) heat insulator

Answer key

  1. a spectacle lens
  2. a conductor
  3. a skipping rope
  4. an insulator
  5. transparent
  6. an insulator
  7. glass
  8. waterproof
  9. False
  10. a raincoat
  11. clay pottery
  12. plastic-coated cloth
  13. waterproof
  14. copper
  15. True
  16. flexible
  17. steel
  18. a boat hull
  19. wood or plastic
  20. True
  21. a car seat belt
  22. copper
  23. False
  24. True
  25. a car windscreen
  26. False
  27. waterproof
  28. graphite
  29. False
  30. False
  31. False
  32. True
  33. a window pane
  34. a conductor
  35. an oven glove
  36. True
  37. False
  38. iron
  39. False
  40. heat insulator

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