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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 379 · 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 the bars inside concrete? (a) glass (b) plastic (c) steel (d) rubber
  2. 2.Which of these needs a transparent material? (a) a hair band (b) a water tank (c) a magnifier lens (d) a yoga mat
  3. 3.🧱 Is plastic an electrical conductor or an insulator? (a) an insulator (b) a conductor
  4. 4.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  5. 5.🧱 Which property matters most for a tea flask lining? (a) waterproof (b) heat insulator (c) flexible (d) electrical conductor
  6. 6.True or false: a yoga mat needs a transparent material. (a) True (b) False
  7. 7.🧱 Which property matters most for a hair band? (a) flexible (b) heat insulator (c) waterproof (d) electrical conductor
  8. 8.True or false: a spectacle lens needs a waterproof material. (a) False (b) True
  9. 9.Which of these needs a waterproof material? (a) an oven glove (b) a cooking pot handle (c) a spectacle lens (d) a raincoat
  10. 10.🧱 Is cotton cloth an electrical conductor or an insulator? (a) an insulator (b) a conductor
  11. 11.True or false: a skipping rope needs an electrical conductor. (a) True (b) False
  12. 12.🧱 Which property matters most for a plug pin? (a) heat insulator (b) waterproof (c) transparent (d) electrical conductor
  13. 13.🧱 Is rubber an electrical conductor or an insulator? (a) a conductor (b) an insulator
  14. 14.🧱 Which material is best for a cooking pot handle? (a) wood or plastic (b) aluminium (c) iron (d) copper
  15. 15.🧱 Which material is best for a window pane? (a) glass (b) wood (c) steel (d) brick
  16. 16.🧱 Which property matters most for a switch contact? (a) heat insulator (b) flexible (c) waterproof (d) electrical conductor
  17. 17.Which of these needs a waterproof material? (a) a roof sheet (b) a tea flask lining (c) a magnifier lens (d) an oven glove
  18. 18.True or false: a water tank needs a waterproof material. (a) False (b) True
  19. 19.Which of these needs a transparent material? (a) an umbrella cover (b) a cooking pot handle (c) a car seat belt (d) a window pane
  20. 20.True or false: a switch contact needs a transparent material. (a) True (b) False
  21. 21.🔍 Which is the odd one out? (a) brass (b) aluminium (c) glass (d) copper
  22. 22.Which of these needs a heat insulator? (a) a water tank (b) an umbrella cover (c) a car seat belt (d) a cooking pot handle
  23. 23.Which of these needs a flexible material? (a) a spectacle lens (b) an oven glove (c) a roof sheet (d) a skipping rope
  24. 24.🧱 Which material is best for a raincoat? (a) plastic-coated cloth (b) cardboard (c) cotton wool (d) paper
  25. 25.🧱 Which property matters most for a spectacle lens? (a) waterproof (b) flexible (c) heat insulator (d) transparent
  26. 26.🧱 Which material is best for the core of an electric wire? (a) copper (b) rubber (c) glass (d) wood
  27. 27.🔍 Which is the odd one out? (a) dry wood (b) rubber (c) glass (d) aluminium
  28. 28.🔍 Which is the odd one out? (a) brass (b) copper (c) dry wood (d) graphite
  29. 29.🔍 Which is the odd one out? (a) copper (b) brass (c) iron (d) rubber
  30. 30.True or false: an oven glove needs a waterproof material. (a) True (b) False
  31. 31.🧱 Which property matters most for a window pane? (a) waterproof (b) flexible (c) electrical conductor (d) transparent
  32. 32.Which of these needs an electrical conductor? (a) a switch contact (b) a hair band (c) a cooking pot handle (d) a water tank
  33. 33.True or false: an umbrella cover needs a waterproof material. (a) False (b) True
  34. 34.🧱 Which property matters most for a skipping rope? (a) flexible (b) heat insulator (c) waterproof (d) electrical conductor
  35. 35.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  36. 36.True or false: a tea flask lining needs a heat insulator. (a) False (b) True
  37. 37.True or false: a spectacle lens needs a transparent material. (a) True (b) False
  38. 38.🔍 Which is the odd one out? (a) iron (b) copper (c) clay pottery (d) brass
  39. 39.True or false: a yoga mat needs a flexible material. (a) True (b) False
  40. 40.🔍 Which is the odd one out? (a) cotton cloth (b) dry wood (c) glass (d) iron

Answer key

  1. steel
  2. a magnifier lens
  3. an insulator
  4. a conductor
  5. heat insulator
  6. False
  7. flexible
  8. False
  9. a raincoat
  10. an insulator
  11. False
  12. electrical conductor
  13. an insulator
  14. wood or plastic
  15. glass
  16. electrical conductor
  17. a roof sheet
  18. True
  19. a window pane
  20. False
  21. glass
  22. a cooking pot handle
  23. a skipping rope
  24. plastic-coated cloth
  25. transparent
  26. copper
  27. aluminium
  28. dry wood
  29. rubber
  30. False
  31. transparent
  32. a switch contact
  33. True
  34. flexible
  35. a conductor
  36. True
  37. True
  38. clay pottery
  39. True
  40. iron

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