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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 865 · 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) the core of a wire (b) a window pane (c) a hair band (d) a switch contact
  2. 2.🧱 Is clay pottery an electrical conductor or an insulator? (a) an insulator (b) a conductor
  3. 3.🔍 Which is the odd one out? (a) iron (b) glass (c) cotton cloth (d) clay pottery
  4. 4.🧱 Which property matters most for a plug pin? (a) transparent (b) heat insulator (c) electrical conductor (d) flexible
  5. 5.Which of these needs a heat insulator? (a) a raincoat (b) a tea flask lining (c) a switch contact (d) a roof sheet
  6. 6.True or false: a tea flask lining needs a flexible material. (a) True (b) False
  7. 7.Which of these needs a flexible material? (a) the core of a wire (b) a car seat belt (c) an oven glove (d) a window pane
  8. 8.🔍 Which is the odd one out? (a) glass (b) rubber (c) graphite (d) plastic
  9. 9.🧱 Which material is best for the bars inside concrete? (a) steel (b) glass (c) plastic (d) rubber
  10. 10.Which of these needs a heat insulator? (a) a switch contact (b) a yoga mat (c) a cooking pot handle (d) a window pane
  11. 11.🧱 Is iron an electrical conductor or an insulator? (a) a conductor (b) an insulator
  12. 12.Which of these needs an electrical conductor? (a) a cooking pot handle (b) a skipping rope (c) a car seat belt (d) a switch contact
  13. 13.🧱 Which material is best for a window pane? (a) brick (b) steel (c) wood (d) glass
  14. 14.🧱 Which material is best for a cooking pot handle? (a) copper (b) iron (c) wood or plastic (d) aluminium
  15. 15.Which of these needs a heat insulator? (a) a car seat belt (b) a roof sheet (c) a raincoat (d) an oven glove
  16. 16.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  17. 17.🔍 Which is the odd one out? (a) rubber (b) iron (c) copper (d) aluminium
  18. 18.🔍 Which is the odd one out? (a) iron (b) brass (c) copper (d) dry wood
  19. 19.🧱 Is brass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  20. 20.True or false: a skipping rope needs a flexible material. (a) True (b) False
  21. 21.🧱 Which material is best for a raincoat? (a) cotton wool (b) cardboard (c) paper (d) plastic-coated cloth
  22. 22.Which of these needs an electrical conductor? (a) an umbrella cover (b) a yoga mat (c) a raincoat (d) a plug pin
  23. 23.🧱 Which property matters most for a skipping rope? (a) heat insulator (b) flexible (c) transparent (d) electrical conductor
  24. 24.🧱 Which property matters most for a cooking pot handle? (a) heat insulator (b) waterproof (c) transparent (d) electrical conductor
  25. 25.🔍 Which is the odd one out? (a) glass (b) brass (c) cotton cloth (d) rubber
  26. 26.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  27. 27.🧱 Which property matters most for a switch contact? (a) waterproof (b) flexible (c) transparent (d) electrical conductor
  28. 28.🧱 Which material is best for the core of an electric wire? (a) copper (b) glass (c) rubber (d) wood
  29. 29.True or false: a boat hull needs a flexible material. (a) True (b) False
  30. 30.🧱 Which property matters most for a window pane? (a) waterproof (b) heat insulator (c) flexible (d) transparent
  31. 31.Which of these needs a flexible material? (a) a magnifier lens (b) the core of a wire (c) a hair band (d) a cooking pot handle
  32. 32.🔍 Which is the odd one out? (a) aluminium (b) graphite (c) clay pottery (d) copper
  33. 33.🧱 Which property matters most for a water tank? (a) waterproof (b) flexible (c) electrical conductor (d) heat insulator
  34. 34.🧱 Which property matters most for a hair band? (a) electrical conductor (b) heat insulator (c) flexible (d) transparent
  35. 35.🧱 Is cotton cloth an electrical conductor or an insulator? (a) an insulator (b) a conductor
  36. 36.🧱 Is plastic an electrical conductor or an insulator? (a) an insulator (b) a conductor
  37. 37.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  38. 38.True or false: a spectacle lens needs a transparent material. (a) True (b) False
  39. 39.True or false: a water tank needs a waterproof material. (a) False (b) True
  40. 40.🔍 Which is the odd one out? (a) brass (b) aluminium (c) plastic (d) steel

Answer key

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

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