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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 72 · 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 spectacle lens (b) a window pane (c) a boat hull (d) a skipping rope
  2. 2.🧱 Which property matters most for a hair band? (a) flexible (b) transparent (c) electrical conductor (d) waterproof
  3. 3.True or false: a yoga mat needs a flexible material. (a) False (b) True
  4. 4.Which of these needs a heat insulator? (a) a raincoat (b) a cooking pot handle (c) the core of a wire (d) a skipping rope
  5. 5.True or false: an umbrella cover needs a waterproof material. (a) False (b) True
  6. 6.🔍 Which is the odd one out? (a) cotton cloth (b) brass (c) clay pottery (d) glass
  7. 7.🧱 Which material is best for a cooking pot handle? (a) iron (b) wood or plastic (c) aluminium (d) copper
  8. 8.🧱 Which property matters most for a tea flask lining? (a) transparent (b) waterproof (c) heat insulator (d) flexible
  9. 9.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
  10. 10.True or false: a hair band needs a flexible material. (a) True (b) False
  11. 11.🔍 Which is the odd one out? (a) rubber (b) clay pottery (c) cotton cloth (d) aluminium
  12. 12.True or false: a switch contact needs a heat insulator. (a) False (b) True
  13. 13.🔍 Which is the odd one out? (a) copper (b) cotton cloth (c) iron (d) aluminium
  14. 14.🔍 Which is the odd one out? (a) rubber (b) clay pottery (c) glass (d) steel
  15. 15.🧱 Which material is best for the core of an electric wire? (a) copper (b) rubber (c) glass (d) wood
  16. 16.🔍 Which is the odd one out? (a) iron (b) dry wood (c) plastic (d) cotton cloth
  17. 17.Which of these needs a flexible material? (a) a magnifier lens (b) a spectacle lens (c) a car seat belt (d) a switch contact
  18. 18.True or false: an umbrella cover needs an electrical conductor. (a) True (b) False
  19. 19.True or false: a car windscreen needs a waterproof material. (a) False (b) True
  20. 20.🧱 Is aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
  21. 21.🧱 Is steel an electrical conductor or an insulator? (a) a conductor (b) an insulator
  22. 22.🧱 Which material is best for a raincoat? (a) cotton wool (b) paper (c) cardboard (d) plastic-coated cloth
  23. 23.🧱 Which material is best for the bars inside concrete? (a) plastic (b) glass (c) steel (d) rubber
  24. 24.True or false: a car seat belt needs a transparent material. (a) False (b) True
  25. 25.🔍 Which is the odd one out? (a) rubber (b) glass (c) clay pottery (d) graphite
  26. 26.🧱 Is graphite an electrical conductor or an insulator? (a) a conductor (b) an insulator
  27. 27.Which of these needs a waterproof material? (a) a water tank (b) a tea flask lining (c) a car windscreen (d) a magnifier lens
  28. 28.🧱 Which property matters most for a plug pin? (a) waterproof (b) transparent (c) electrical conductor (d) heat insulator
  29. 29.🧱 Is copper an electrical conductor or an insulator? (a) a conductor (b) an insulator
  30. 30.Which of these needs an electrical conductor? (a) an umbrella cover (b) a tea flask lining (c) a spectacle lens (d) a switch contact
  31. 31.🧱 Which property matters most for a window pane? (a) flexible (b) transparent (c) heat insulator (d) electrical conductor
  32. 32.🔍 Which is the odd one out? (a) iron (b) graphite (c) rubber (d) aluminium
  33. 33.True or false: a yoga mat needs an electrical conductor. (a) True (b) False
  34. 34.🧱 Is plastic an electrical conductor or an insulator? (a) an insulator (b) a conductor
  35. 35.True or false: a spectacle lens needs a heat insulator. (a) False (b) True
  36. 36.🧱 Is brass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  37. 37.🧱 Which property matters most for a spectacle lens? (a) heat insulator (b) waterproof (c) flexible (d) transparent
  38. 38.🧱 Is glass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  39. 39.🔍 Which is the odd one out? (a) dry wood (b) graphite (c) steel (d) copper
  40. 40.Which of these needs a heat insulator? (a) a raincoat (b) a spectacle lens (c) a tea flask lining (d) a window pane

Answer key

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

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