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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 531 · 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 a window pane? (a) wood (b) glass (c) steel (d) brick
  2. 2.True or false: a car seat belt needs a flexible material. (a) False (b) True
  3. 3.🧱 Which material is best for the core of an electric wire? (a) copper (b) glass (c) rubber (d) wood
  4. 4.🧱 Is glass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  5. 5.🧱 Is dry wood an electrical conductor or an insulator? (a) an insulator (b) a conductor
  6. 6.🧱 Is clay pottery an electrical conductor or an insulator? (a) an insulator (b) a conductor
  7. 7.True or false: a tea flask lining needs an electrical conductor. (a) True (b) False
  8. 8.Which of these needs a heat insulator? (a) a cooking pot handle (b) a window pane (c) a switch contact (d) an umbrella cover
  9. 9.🔍 Which is the odd one out? (a) plastic (b) brass (c) copper (d) graphite
  10. 10.🧱 Is plastic an electrical conductor or an insulator? (a) an insulator (b) a conductor
  11. 11.Which of these needs an electrical conductor? (a) a yoga mat (b) a plug pin (c) a car seat belt (d) a water tank
  12. 12.🔍 Which is the odd one out? (a) glass (b) rubber (c) cotton cloth (d) iron
  13. 13.🧱 Which material is best for a cooking pot handle? (a) copper (b) aluminium (c) iron (d) wood or plastic
  14. 14.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  15. 15.🧱 Which property matters most for a spectacle lens? (a) electrical conductor (b) waterproof (c) heat insulator (d) transparent
  16. 16.True or false: a cooking pot handle needs a heat insulator. (a) True (b) False
  17. 17.🔍 Which is the odd one out? (a) copper (b) brass (c) iron (d) clay pottery
  18. 18.🧱 Which property matters most for a yoga mat? (a) transparent (b) flexible (c) heat insulator (d) waterproof
  19. 19.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
  20. 20.🔍 Which is the odd one out? (a) dry wood (b) rubber (c) aluminium (d) plastic
  21. 21.True or false: a switch contact needs a waterproof material. (a) False (b) True
  22. 22.🧱 Which property matters most for a car seat belt? (a) heat insulator (b) waterproof (c) flexible (d) transparent
  23. 23.🔍 Which is the odd one out? (a) graphite (b) brass (c) rubber (d) copper
  24. 24.🔍 Which is the odd one out? (a) dry wood (b) cotton cloth (c) rubber (d) graphite
  25. 25.🧱 Which property matters most for a cooking pot handle? (a) transparent (b) waterproof (c) heat insulator (d) flexible
  26. 26.🧱 Which property matters most for a boat hull? (a) flexible (b) heat insulator (c) electrical conductor (d) waterproof
  27. 27.Which of these needs a waterproof material? (a) a cooking pot handle (b) a yoga mat (c) a magnifier lens (d) an umbrella cover
  28. 28.🧱 Which material is best for the bars inside concrete? (a) plastic (b) glass (c) rubber (d) steel
  29. 29.True or false: a car seat belt needs a heat insulator. (a) False (b) True
  30. 30.🧱 Which material is best for a raincoat? (a) cotton wool (b) cardboard (c) plastic-coated cloth (d) paper
  31. 31.🔍 Which is the odd one out? (a) graphite (b) cotton cloth (c) steel (d) copper
  32. 32.Which of these needs a waterproof material? (a) a hair band (b) an oven glove (c) a roof sheet (d) the core of a wire
  33. 33.Which of these needs a heat insulator? (a) a tea flask lining (b) a raincoat (c) a hair band (d) a skipping rope
  34. 34.🔍 Which is the odd one out? (a) clay pottery (b) cotton cloth (c) rubber (d) steel
  35. 35.Which of these needs a flexible material? (a) a plug pin (b) a raincoat (c) a car seat belt (d) a roof sheet
  36. 36.True or false: a car seat belt needs a waterproof material. (a) False (b) True
  37. 37.True or false: a yoga mat needs a flexible material. (a) False (b) True
  38. 38.🧱 Which property matters most for the core of a wire? (a) heat insulator (b) flexible (c) electrical conductor (d) transparent
  39. 39.True or false: a roof sheet needs a waterproof material. (a) True (b) False
  40. 40.Which of these needs a transparent material? (a) a yoga mat (b) a spectacle lens (c) a car seat belt (d) a raincoat

Answer key

  1. glass
  2. True
  3. copper
  4. an insulator
  5. an insulator
  6. an insulator
  7. False
  8. a cooking pot handle
  9. plastic
  10. an insulator
  11. a plug pin
  12. iron
  13. wood or plastic
  14. a conductor
  15. transparent
  16. True
  17. clay pottery
  18. flexible
  19. a conductor
  20. aluminium
  21. False
  22. flexible
  23. rubber
  24. graphite
  25. heat insulator
  26. waterproof
  27. an umbrella cover
  28. steel
  29. False
  30. plastic-coated cloth
  31. cotton cloth
  32. a roof sheet
  33. a tea flask lining
  34. steel
  35. a car seat belt
  36. False
  37. True
  38. electrical conductor
  39. True
  40. a spectacle lens

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