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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 352 · 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 is the odd one out? (a) brass (b) plastic (c) glass (d) clay pottery
  2. 2.🧱 Which property matters most for a raincoat? (a) transparent (b) flexible (c) electrical conductor (d) waterproof
  3. 3.True or false: a boat hull needs a waterproof material. (a) True (b) False
  4. 4.Which of these needs a heat insulator? (a) a window pane (b) a magnifier lens (c) a water tank (d) an oven glove
  5. 5.Which of these needs an electrical conductor? (a) a cooking pot handle (b) a tea flask lining (c) a skipping rope (d) the core of a wire
  6. 6.🔍 Which is the odd one out? (a) glass (b) brass (c) steel (d) copper
  7. 7.🧱 Which material is best for the bars inside concrete? (a) plastic (b) rubber (c) glass (d) steel
  8. 8.🔍 Which is the odd one out? (a) iron (b) plastic (c) glass (d) clay pottery
  9. 9.🔍 Which is the odd one out? (a) dry wood (b) plastic (c) graphite (d) rubber
  10. 10.Which of these needs a flexible material? (a) a car seat belt (b) a raincoat (c) a plug pin (d) a water tank
  11. 11.🧱 Which property matters most for a water tank? (a) waterproof (b) transparent (c) electrical conductor (d) flexible
  12. 12.Which of these needs a flexible material? (a) a hair band (b) a raincoat (c) a tea flask lining (d) a spectacle lens
  13. 13.🧱 Which property matters most for an oven glove? (a) transparent (b) heat insulator (c) electrical conductor (d) flexible
  14. 14.🧱 Which material is best for a cooking pot handle? (a) iron (b) wood or plastic (c) aluminium (d) copper
  15. 15.🧱 Is aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
  16. 16.🧱 Which property matters most for a cooking pot handle? (a) electrical conductor (b) heat insulator (c) transparent (d) waterproof
  17. 17.🧱 Which material is best for a window pane? (a) steel (b) brick (c) glass (d) wood
  18. 18.🧱 Which material is best for a raincoat? (a) cardboard (b) paper (c) cotton wool (d) plastic-coated cloth
  19. 19.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  20. 20.Which of these needs an electrical conductor? (a) a window pane (b) a yoga mat (c) a plug pin (d) a skipping rope
  21. 21.🧱 Is rubber an electrical conductor or an insulator? (a) a conductor (b) an insulator
  22. 22.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
  23. 23.Which of these needs a transparent material? (a) a magnifier lens (b) a yoga mat (c) a tea flask lining (d) the core of a wire
  24. 24.🧱 Which property matters most for a car windscreen? (a) heat insulator (b) flexible (c) transparent (d) waterproof
  25. 25.🔍 Which is the odd one out? (a) steel (b) copper (c) iron (d) cotton cloth
  26. 26.🧱 Which property matters most for an umbrella cover? (a) transparent (b) waterproof (c) flexible (d) heat insulator
  27. 27.True or false: a water tank needs a flexible material. (a) True (b) False
  28. 28.🧱 Which property matters most for a magnifier lens? (a) flexible (b) heat insulator (c) electrical conductor (d) transparent
  29. 29.🧱 Which material is best for the core of an electric wire? (a) rubber (b) wood (c) glass (d) copper
  30. 30.🧱 Is cotton cloth an electrical conductor or an insulator? (a) an insulator (b) a conductor
  31. 31.🧱 Which property matters most for a skipping rope? (a) flexible (b) waterproof (c) transparent (d) heat insulator
  32. 32.True or false: the core of a wire needs a heat insulator. (a) False (b) True
  33. 33.🔍 Which is the odd one out? (a) copper (b) dry wood (c) plastic (d) glass
  34. 34.Which of these needs an electrical conductor? (a) a spectacle lens (b) a hair band (c) an oven glove (d) a switch contact
  35. 35.🔍 Which is the odd one out? (a) iron (b) plastic (c) aluminium (d) steel
  36. 36.🧱 Which property matters most for a car seat belt? (a) flexible (b) transparent (c) electrical conductor (d) heat insulator
  37. 37.🧱 Is dry wood an electrical conductor or an insulator? (a) a conductor (b) an insulator
  38. 38.🧱 Which property matters most for a window pane? (a) flexible (b) transparent (c) waterproof (d) electrical conductor
  39. 39.True or false: a skipping rope needs a waterproof material. (a) True (b) False
  40. 40.True or false: the core of a wire needs a transparent material. (a) False (b) True

Answer key

  1. brass
  2. waterproof
  3. True
  4. an oven glove
  5. the core of a wire
  6. glass
  7. steel
  8. iron
  9. graphite
  10. a car seat belt
  11. waterproof
  12. a hair band
  13. heat insulator
  14. wood or plastic
  15. a conductor
  16. heat insulator
  17. glass
  18. plastic-coated cloth
  19. a conductor
  20. a plug pin
  21. an insulator
  22. a conductor
  23. a magnifier lens
  24. transparent
  25. cotton cloth
  26. waterproof
  27. False
  28. transparent
  29. copper
  30. an insulator
  31. flexible
  32. False
  33. copper
  34. a switch contact
  35. plastic
  36. flexible
  37. an insulator
  38. transparent
  39. False
  40. False

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