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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 905 · 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) a boat hull (b) a switch contact (c) a spectacle lens (d) a hair band
  2. 2.🧱 Which material is best for a window pane? (a) steel (b) wood (c) brick (d) glass
  3. 3.True or false: a car seat belt needs a transparent material. (a) True (b) False
  4. 4.True or false: a tea flask lining needs a transparent material. (a) True (b) False
  5. 5.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  6. 6.🧱 Which material is best for a raincoat? (a) paper (b) cardboard (c) plastic-coated cloth (d) cotton wool
  7. 7.🔍 Which is the odd one out? (a) plastic (b) cotton cloth (c) rubber (d) aluminium
  8. 8.🧱 Which property matters most for a switch contact? (a) flexible (b) waterproof (c) heat insulator (d) electrical conductor
  9. 9.🔍 Which is the odd one out? (a) copper (b) brass (c) graphite (d) dry wood
  10. 10.🧱 Which material is best for a cooking pot handle? (a) copper (b) iron (c) aluminium (d) wood or plastic
  11. 11.🧱 Is steel an electrical conductor or an insulator? (a) a conductor (b) an insulator
  12. 12.🧱 Is glass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  13. 13.True or false: a boat hull needs a waterproof material. (a) False (b) True
  14. 14.True or false: a magnifier lens needs a transparent material. (a) True (b) False
  15. 15.🧱 Is iron an electrical conductor or an insulator? (a) a conductor (b) an insulator
  16. 16.🧱 Which material is best for the bars inside concrete? (a) glass (b) plastic (c) rubber (d) steel
  17. 17.Which of these needs a flexible material? (a) a water tank (b) a car seat belt (c) a roof sheet (d) a car windscreen
  18. 18.🧱 Which property matters most for a tea flask lining? (a) flexible (b) waterproof (c) transparent (d) heat insulator
  19. 19.🧱 Which property matters most for an oven glove? (a) electrical conductor (b) waterproof (c) heat insulator (d) flexible
  20. 20.Which of these needs a heat insulator? (a) a spectacle lens (b) an umbrella cover (c) the core of a wire (d) a tea flask lining
  21. 21.🔍 Which is the odd one out? (a) clay pottery (b) plastic (c) glass (d) copper
  22. 22.🔍 Which is the odd one out? (a) rubber (b) dry wood (c) glass (d) brass
  23. 23.🧱 Which property matters most for a car windscreen? (a) waterproof (b) flexible (c) electrical conductor (d) transparent
  24. 24.🧱 Which property matters most for a skipping rope? (a) waterproof (b) transparent (c) electrical conductor (d) flexible
  25. 25.True or false: a yoga mat needs a flexible material. (a) False (b) True
  26. 26.🔍 Which is the odd one out? (a) graphite (b) clay pottery (c) glass (d) dry wood
  27. 27.🧱 Which property matters most for a yoga mat? (a) heat insulator (b) flexible (c) transparent (d) electrical conductor
  28. 28.True or false: a spectacle lens needs a transparent material. (a) False (b) True
  29. 29.🔍 Which is the odd one out? (a) clay pottery (b) brass (c) iron (d) aluminium
  30. 30.Which of these needs a heat insulator? (a) an oven glove (b) a hair band (c) a magnifier lens (d) a water tank
  31. 31.True or false: a raincoat needs an electrical conductor. (a) True (b) False
  32. 32.🔍 Which is the odd one out? (a) copper (b) graphite (c) rubber (d) aluminium
  33. 33.True or false: a boat hull needs a transparent material. (a) True (b) False
  34. 34.🧱 Is dry wood an electrical conductor or an insulator? (a) an insulator (b) a conductor
  35. 35.🧱 Which property matters most for a roof sheet? (a) waterproof (b) flexible (c) electrical conductor (d) heat insulator
  36. 36.🔍 Which is the odd one out? (a) aluminium (b) graphite (c) copper (d) glass
  37. 37.Which of these needs a flexible material? (a) a raincoat (b) an umbrella cover (c) a skipping rope (d) a plug pin
  38. 38.Which of these needs a waterproof material? (a) a raincoat (b) the core of a wire (c) a skipping rope (d) a magnifier lens
  39. 39.Which of these needs an electrical conductor? (a) a magnifier lens (b) a hair band (c) a spectacle lens (d) the core of a wire
  40. 40.🧱 Which material is best for the core of an electric wire? (a) copper (b) glass (c) wood (d) rubber

Answer key

  1. a spectacle lens
  2. glass
  3. False
  4. False
  5. a conductor
  6. plastic-coated cloth
  7. aluminium
  8. electrical conductor
  9. dry wood
  10. wood or plastic
  11. a conductor
  12. an insulator
  13. True
  14. True
  15. a conductor
  16. steel
  17. a car seat belt
  18. heat insulator
  19. heat insulator
  20. a tea flask lining
  21. copper
  22. brass
  23. transparent
  24. flexible
  25. True
  26. graphite
  27. flexible
  28. True
  29. clay pottery
  30. an oven glove
  31. False
  32. rubber
  33. False
  34. an insulator
  35. waterproof
  36. glass
  37. a skipping rope
  38. a raincoat
  39. the core of a wire
  40. copper

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