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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 612 · 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 plug pin needs an electrical conductor. (a) True (b) False
  2. 2.🧱 Which material is best for a cooking pot handle? (a) iron (b) copper (c) aluminium (d) wood or plastic
  3. 3.🧱 Which material is best for the core of an electric wire? (a) wood (b) rubber (c) copper (d) glass
  4. 4.Which of these needs a waterproof material? (a) a raincoat (b) the core of a wire (c) a magnifier lens (d) a car seat belt
  5. 5.True or false: a car seat belt needs a flexible material. (a) False (b) True
  6. 6.🧱 Which material is best for a raincoat? (a) paper (b) cardboard (c) cotton wool (d) plastic-coated cloth
  7. 7.🧱 Which material is best for a window pane? (a) wood (b) steel (c) glass (d) brick
  8. 8.🧱 Which property matters most for a boat hull? (a) flexible (b) waterproof (c) electrical conductor (d) heat insulator
  9. 9.🔍 Which is the odd one out? (a) aluminium (b) dry wood (c) steel (d) iron
  10. 10.🧱 Is steel an electrical conductor or an insulator? (a) a conductor (b) an insulator
  11. 11.True or false: a cooking pot handle needs a transparent material. (a) True (b) False
  12. 12.True or false: a window pane needs a transparent material. (a) False (b) True
  13. 13.Which of these needs an electrical conductor? (a) a hair band (b) the core of a wire (c) an oven glove (d) a car seat belt
  14. 14.🧱 Which property matters most for a car windscreen? (a) flexible (b) transparent (c) heat insulator (d) waterproof
  15. 15.True or false: an oven glove needs a heat insulator. (a) True (b) False
  16. 16.Which of these needs an electrical conductor? (a) a skipping rope (b) a yoga mat (c) a switch contact (d) a roof sheet
  17. 17.🧱 Which property matters most for an oven glove? (a) heat insulator (b) transparent (c) waterproof (d) flexible
  18. 18.🔍 Which is the odd one out? (a) plastic (b) iron (c) brass (d) aluminium
  19. 19.🧱 Which property matters most for a roof sheet? (a) heat insulator (b) electrical conductor (c) transparent (d) waterproof
  20. 20.🔍 Which is the odd one out? (a) aluminium (b) steel (c) rubber (d) iron
  21. 21.True or false: a boat hull needs a waterproof material. (a) True (b) False
  22. 22.Which of these needs a flexible material? (a) a skipping rope (b) a tea flask lining (c) a boat hull (d) a magnifier lens
  23. 23.True or false: a hair band needs a waterproof material. (a) True (b) False
  24. 24.True or false: a window pane needs a heat insulator. (a) False (b) True
  25. 25.🧱 Is dry wood an electrical conductor or an insulator? (a) an insulator (b) a conductor
  26. 26.🧱 Which property matters most for a magnifier lens? (a) flexible (b) waterproof (c) transparent (d) electrical conductor
  27. 27.🧱 Which property matters most for a tea flask lining? (a) waterproof (b) flexible (c) electrical conductor (d) heat insulator
  28. 28.Which of these needs a waterproof material? (a) a skipping rope (b) an oven glove (c) an umbrella cover (d) a tea flask lining
  29. 29.True or false: a hair band needs a flexible material. (a) False (b) True
  30. 30.Which of these needs a transparent material? (a) a skipping rope (b) a water tank (c) a window pane (d) a roof sheet
  31. 31.True or false: a boat hull needs a flexible material. (a) True (b) False
  32. 32.🧱 Is aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
  33. 33.Which of these needs a heat insulator? (a) a plug pin (b) a spectacle lens (c) a magnifier lens (d) a cooking pot handle
  34. 34.Which of these needs a heat insulator? (a) a tea flask lining (b) a plug pin (c) a spectacle lens (d) a skipping rope
  35. 35.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
  36. 36.True or false: a spectacle lens needs a heat insulator. (a) False (b) True
  37. 37.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
  38. 38.Which of these needs a flexible material? (a) a magnifier lens (b) a yoga mat (c) a tea flask lining (d) a switch contact
  39. 39.🔍 Which is the odd one out? (a) plastic (b) rubber (c) glass (d) brass
  40. 40.True or false: a yoga mat needs a waterproof material. (a) True (b) False

Answer key

  1. True
  2. wood or plastic
  3. copper
  4. a raincoat
  5. True
  6. plastic-coated cloth
  7. glass
  8. waterproof
  9. dry wood
  10. a conductor
  11. False
  12. True
  13. the core of a wire
  14. transparent
  15. True
  16. a switch contact
  17. heat insulator
  18. plastic
  19. waterproof
  20. rubber
  21. True
  22. a skipping rope
  23. False
  24. False
  25. an insulator
  26. transparent
  27. heat insulator
  28. an umbrella cover
  29. True
  30. a window pane
  31. False
  32. a conductor
  33. a cooking pot handle
  34. a tea flask lining
  35. an insulator
  36. False
  37. a conductor
  38. a yoga mat
  39. brass
  40. False

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