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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 689 · 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 raincoat? (a) plastic-coated cloth (b) cardboard (c) cotton wool (d) paper
  2. 2.Which of these needs an electrical conductor? (a) a boat hull (b) a cooking pot handle (c) a switch contact (d) an oven glove
  3. 3.🧱 Is brass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  4. 4.🧱 Which property matters most for a boat hull? (a) waterproof (b) heat insulator (c) transparent (d) flexible
  5. 5.🧱 Which property matters most for a plug pin? (a) heat insulator (b) transparent (c) electrical conductor (d) waterproof
  6. 6.🧱 Which material is best for a cooking pot handle? (a) wood or plastic (b) aluminium (c) iron (d) copper
  7. 7.🔍 Which is the odd one out? (a) dry wood (b) plastic (c) rubber (d) graphite
  8. 8.🧱 Which property matters most for a raincoat? (a) waterproof (b) flexible (c) transparent (d) electrical conductor
  9. 9.True or false: a window pane needs a waterproof material. (a) False (b) True
  10. 10.🧱 Is clay pottery an electrical conductor or an insulator? (a) a conductor (b) an insulator
  11. 11.True or false: a raincoat needs a waterproof material. (a) True (b) False
  12. 12.🔍 Which is the odd one out? (a) copper (b) steel (c) iron (d) rubber
  13. 13.🧱 Which material is best for the bars inside concrete? (a) glass (b) plastic (c) rubber (d) steel
  14. 14.🧱 Is copper an electrical conductor or an insulator? (a) a conductor (b) an insulator
  15. 15.🔍 Which is the odd one out? (a) iron (b) steel (c) cotton cloth (d) brass
  16. 16.True or false: a spectacle lens needs a transparent material. (a) True (b) False
  17. 17.🧱 Which material is best for a window pane? (a) wood (b) brick (c) glass (d) steel
  18. 18.True or false: a car seat belt needs a transparent material. (a) False (b) True
  19. 19.🔍 Which is the odd one out? (a) plastic (b) brass (c) rubber (d) clay pottery
  20. 20.🔍 Which is the odd one out? (a) iron (b) aluminium (c) steel (d) plastic
  21. 21.Which of these needs a waterproof material? (a) the core of a wire (b) a spectacle lens (c) a switch contact (d) a boat hull
  22. 22.True or false: a car seat belt needs a flexible material. (a) True (b) False
  23. 23.🧱 Which property matters most for a tea flask lining? (a) transparent (b) waterproof (c) flexible (d) heat insulator
  24. 24.🔍 Which is the odd one out? (a) steel (b) rubber (c) glass (d) clay pottery
  25. 25.🧱 Is plastic an electrical conductor or an insulator? (a) an insulator (b) a conductor
  26. 26.True or false: a cooking pot handle needs a flexible material. (a) False (b) True
  27. 27.🧱 Which property matters most for a roof sheet? (a) electrical conductor (b) waterproof (c) heat insulator (d) flexible
  28. 28.True or false: an oven glove needs a heat insulator. (a) True (b) False
  29. 29.Which of these needs a transparent material? (a) a skipping rope (b) a tea flask lining (c) an oven glove (d) a spectacle lens
  30. 30.True or false: a hair band needs a transparent material. (a) True (b) False
  31. 31.🧱 Which property matters most for a hair band? (a) electrical conductor (b) waterproof (c) transparent (d) flexible
  32. 32.🧱 Which material is best for the core of an electric wire? (a) glass (b) rubber (c) copper (d) wood
  33. 33.Which of these needs a heat insulator? (a) a water tank (b) a roof sheet (c) a cooking pot handle (d) a window pane
  34. 34.Which of these needs a heat insulator? (a) an oven glove (b) a raincoat (c) a water tank (d) a plug pin
  35. 35.🧱 Which property matters most for a magnifier lens? (a) flexible (b) electrical conductor (c) waterproof (d) transparent
  36. 36.🧱 Which property matters most for a car seat belt? (a) flexible (b) heat insulator (c) transparent (d) waterproof
  37. 37.Which of these needs a waterproof material? (a) a raincoat (b) a plug pin (c) a spectacle lens (d) an oven glove
  38. 38.🧱 Which property matters most for a cooking pot handle? (a) electrical conductor (b) heat insulator (c) flexible (d) waterproof
  39. 39.Which of these needs an electrical conductor? (a) a water tank (b) a roof sheet (c) a skipping rope (d) a plug pin
  40. 40.🔍 Which is the odd one out? (a) iron (b) aluminium (c) steel (d) clay pottery

Answer key

  1. plastic-coated cloth
  2. a switch contact
  3. a conductor
  4. waterproof
  5. electrical conductor
  6. wood or plastic
  7. graphite
  8. waterproof
  9. False
  10. an insulator
  11. True
  12. rubber
  13. steel
  14. a conductor
  15. cotton cloth
  16. True
  17. glass
  18. False
  19. brass
  20. plastic
  21. a boat hull
  22. True
  23. heat insulator
  24. steel
  25. an insulator
  26. False
  27. waterproof
  28. True
  29. a spectacle lens
  30. False
  31. flexible
  32. copper
  33. a cooking pot handle
  34. an oven glove
  35. transparent
  36. flexible
  37. a raincoat
  38. heat insulator
  39. a plug pin
  40. clay pottery

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