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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 146 · 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.True or false: a cooking pot handle needs a flexible material. (a) False (b) True
  2. 2.Which of these needs a transparent material? (a) a tea flask lining (b) a yoga mat (c) a raincoat (d) a magnifier lens
  3. 3.True or false: a plug pin needs a flexible material. (a) False (b) True
  4. 4.True or false: a spectacle lens needs a flexible material. (a) True (b) False
  5. 5.🔍 Which is the odd one out? (a) clay pottery (b) rubber (c) dry wood (d) aluminium
  6. 6.True or false: an oven glove needs a heat insulator. (a) False (b) True
  7. 7.🧱 Which property matters most for a car windscreen? (a) waterproof (b) transparent (c) electrical conductor (d) flexible
  8. 8.🧱 Which property matters most for a yoga mat? (a) heat insulator (b) transparent (c) flexible (d) electrical conductor
  9. 9.🧱 Which property matters most for a car seat belt? (a) flexible (b) transparent (c) electrical conductor (d) heat insulator
  10. 10.🧱 Which property matters most for a water tank? (a) heat insulator (b) electrical conductor (c) waterproof (d) transparent
  11. 11.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  12. 12.🧱 Which material is best for the bars inside concrete? (a) plastic (b) glass (c) rubber (d) steel
  13. 13.🔍 Which is the odd one out? (a) steel (b) aluminium (c) plastic (d) copper
  14. 14.🧱 Which property matters most for the core of a wire? (a) waterproof (b) flexible (c) heat insulator (d) electrical conductor
  15. 15.🧱 Which material is best for the core of an electric wire? (a) rubber (b) glass (c) copper (d) wood
  16. 16.Which of these needs a waterproof material? (a) a window pane (b) a roof sheet (c) a cooking pot handle (d) a switch contact
  17. 17.Which of these needs a heat insulator? (a) an oven glove (b) a plug pin (c) a roof sheet (d) a car windscreen
  18. 18.🔍 Which is the odd one out? (a) iron (b) graphite (c) copper (d) dry wood
  19. 19.🧱 Which property matters most for a boat hull? (a) transparent (b) heat insulator (c) electrical conductor (d) waterproof
  20. 20.🔍 Which is the odd one out? (a) glass (b) plastic (c) rubber (d) steel
  21. 21.🧱 Is clay pottery an electrical conductor or an insulator? (a) a conductor (b) an insulator
  22. 22.🧱 Is copper an electrical conductor or an insulator? (a) a conductor (b) an insulator
  23. 23.🧱 Which material is best for a raincoat? (a) paper (b) cardboard (c) plastic-coated cloth (d) cotton wool
  24. 24.🧱 Which property matters most for a skipping rope? (a) heat insulator (b) waterproof (c) flexible (d) transparent
  25. 25.🧱 Which material is best for a window pane? (a) glass (b) wood (c) brick (d) steel
  26. 26.🧱 Is brass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  27. 27.True or false: a water tank needs an electrical conductor. (a) True (b) False
  28. 28.🔍 Which is the odd one out? (a) copper (b) clay pottery (c) glass (d) dry wood
  29. 29.True or false: a car seat belt needs a heat insulator. (a) False (b) True
  30. 30.True or false: a roof sheet needs an electrical conductor. (a) False (b) True
  31. 31.🧱 Which property matters most for a tea flask lining? (a) electrical conductor (b) waterproof (c) heat insulator (d) flexible
  32. 32.True or false: a roof sheet needs a waterproof material. (a) False (b) True
  33. 33.Which of these needs a waterproof material? (a) the core of a wire (b) a cooking pot handle (c) a plug pin (d) a raincoat
  34. 34.Which of these needs a flexible material? (a) a water tank (b) a car seat belt (c) a roof sheet (d) an umbrella cover
  35. 35.🧱 Which property matters most for a spectacle lens? (a) electrical conductor (b) waterproof (c) heat insulator (d) transparent
  36. 36.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
  37. 37.🔍 Which is the odd one out? (a) graphite (b) cotton cloth (c) iron (d) copper
  38. 38.🧱 Is rubber an electrical conductor or an insulator? (a) a conductor (b) an insulator
  39. 39.Which of these needs a flexible material? (a) a skipping rope (b) a tea flask lining (c) an oven glove (d) a raincoat
  40. 40.True or false: a car windscreen needs a transparent material. (a) True (b) False

Answer key

  1. False
  2. a magnifier lens
  3. False
  4. False
  5. aluminium
  6. True
  7. transparent
  8. flexible
  9. flexible
  10. waterproof
  11. a conductor
  12. steel
  13. plastic
  14. electrical conductor
  15. copper
  16. a roof sheet
  17. an oven glove
  18. dry wood
  19. waterproof
  20. steel
  21. an insulator
  22. a conductor
  23. plastic-coated cloth
  24. flexible
  25. glass
  26. a conductor
  27. False
  28. copper
  29. False
  30. False
  31. heat insulator
  32. True
  33. a raincoat
  34. a car seat belt
  35. transparent
  36. an insulator
  37. cotton cloth
  38. an insulator
  39. a skipping rope
  40. True

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