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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 623 · 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 flexible material? (a) a window pane (b) a car seat belt (c) a spectacle lens (d) a roof sheet
  2. 2.🧱 Which property matters most for a car seat belt? (a) electrical conductor (b) flexible (c) transparent (d) waterproof
  3. 3.🧱 Which property matters most for a yoga mat? (a) electrical conductor (b) waterproof (c) transparent (d) flexible
  4. 4.🧱 Is clay pottery an electrical conductor or an insulator? (a) an insulator (b) a conductor
  5. 5.Which of these needs a heat insulator? (a) a hair band (b) a raincoat (c) a cooking pot handle (d) a spectacle lens
  6. 6.🧱 Which property matters most for a water tank? (a) transparent (b) flexible (c) waterproof (d) heat insulator
  7. 7.Which of these needs a flexible material? (a) an oven glove (b) a roof sheet (c) a yoga mat (d) a window pane
  8. 8.🧱 Which material is best for a raincoat? (a) cotton wool (b) cardboard (c) plastic-coated cloth (d) paper
  9. 9.True or false: a skipping rope needs a transparent material. (a) True (b) False
  10. 10.🧱 Which material is best for the core of an electric wire? (a) wood (b) glass (c) copper (d) rubber
  11. 11.🔍 Which is the odd one out? (a) copper (b) brass (c) iron (d) clay pottery
  12. 12.🔍 Which is the odd one out? (a) steel (b) brass (c) graphite (d) dry wood
  13. 13.🔍 Which is the odd one out? (a) plastic (b) clay pottery (c) steel (d) dry wood
  14. 14.🧱 Which material is best for a window pane? (a) brick (b) wood (c) glass (d) steel
  15. 15.🧱 Which property matters most for a roof sheet? (a) flexible (b) heat insulator (c) waterproof (d) electrical conductor
  16. 16.🧱 Is dry wood an electrical conductor or an insulator? (a) an insulator (b) a conductor
  17. 17.True or false: an oven glove needs a heat insulator. (a) False (b) True
  18. 18.🧱 Which property matters most for a switch contact? (a) electrical conductor (b) transparent (c) waterproof (d) heat insulator
  19. 19.🧱 Which property matters most for an oven glove? (a) electrical conductor (b) heat insulator (c) transparent (d) flexible
  20. 20.🧱 Which property matters most for a window pane? (a) heat insulator (b) electrical conductor (c) transparent (d) waterproof
  21. 21.🧱 Is glass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  22. 22.True or false: a raincoat needs a heat insulator. (a) False (b) True
  23. 23.True or false: a magnifier lens needs a heat insulator. (a) True (b) False
  24. 24.🔍 Which is the odd one out? (a) dry wood (b) glass (c) copper (d) clay pottery
  25. 25.True or false: an umbrella cover needs a waterproof material. (a) True (b) False
  26. 26.Which of these needs an electrical conductor? (a) a magnifier lens (b) a roof sheet (c) a plug pin (d) an umbrella cover
  27. 27.True or false: a magnifier lens needs a flexible material. (a) True (b) False
  28. 28.🧱 Is graphite an electrical conductor or an insulator? (a) a conductor (b) an insulator
  29. 29.🧱 Which material is best for a cooking pot handle? (a) copper (b) aluminium (c) iron (d) wood or plastic
  30. 30.True or false: a raincoat needs a waterproof material. (a) True (b) False
  31. 31.True or false: a roof sheet needs a transparent material. (a) False (b) True
  32. 32.🔍 Which is the odd one out? (a) glass (b) plastic (c) aluminium (d) clay pottery
  33. 33.🔍 Which is the odd one out? (a) aluminium (b) glass (c) copper (d) graphite
  34. 34.🔍 Which is the odd one out? (a) cotton cloth (b) steel (c) graphite (d) copper
  35. 35.🧱 Is cotton cloth an electrical conductor or an insulator? (a) an insulator (b) a conductor
  36. 36.🔍 Which is the odd one out? (a) plastic (b) iron (c) cotton cloth (d) rubber
  37. 37.🔍 Which is the odd one out? (a) brass (b) steel (c) rubber (d) iron
  38. 38.🧱 Which property matters most for a skipping rope? (a) transparent (b) flexible (c) waterproof (d) heat insulator
  39. 39.🧱 Is plastic an electrical conductor or an insulator? (a) an insulator (b) a conductor
  40. 40.🧱 Which property matters most for a hair band? (a) heat insulator (b) waterproof (c) flexible (d) transparent

Answer key

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

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