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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 857 · 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 property matters most for a car windscreen? (a) heat insulator (b) waterproof (c) flexible (d) transparent
  2. 2.🧱 Which property matters most for a tea flask lining? (a) flexible (b) electrical conductor (c) transparent (d) heat insulator
  3. 3.True or false: a magnifier lens needs a transparent material. (a) True (b) False
  4. 4.🧱 Which material is best for a window pane? (a) steel (b) brick (c) wood (d) glass
  5. 5.🔍 Which is the odd one out? (a) aluminium (b) rubber (c) dry wood (d) clay pottery
  6. 6.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  7. 7.🧱 Is steel an electrical conductor or an insulator? (a) a conductor (b) an insulator
  8. 8.Which of these needs a heat insulator? (a) an oven glove (b) a spectacle lens (c) a magnifier lens (d) a roof sheet
  9. 9.🧱 Which property matters most for a plug pin? (a) transparent (b) electrical conductor (c) waterproof (d) flexible
  10. 10.🧱 Which material is best for the core of an electric wire? (a) copper (b) glass (c) rubber (d) wood
  11. 11.🔍 Which is the odd one out? (a) plastic (b) cotton cloth (c) dry wood (d) iron
  12. 12.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
  13. 13.Which of these needs a flexible material? (a) a cooking pot handle (b) an oven glove (c) a car seat belt (d) the core of a wire
  14. 14.🧱 Which material is best for a cooking pot handle? (a) iron (b) copper (c) aluminium (d) wood or plastic
  15. 15.🔍 Which is the odd one out? (a) cotton cloth (b) rubber (c) plastic (d) brass
  16. 16.Which of these needs a transparent material? (a) an umbrella cover (b) a raincoat (c) a car windscreen (d) a hair band
  17. 17.Which of these needs a flexible material? (a) a window pane (b) an umbrella cover (c) the core of a wire (d) a skipping rope
  18. 18.Which of these needs a transparent material? (a) a magnifier lens (b) a cooking pot handle (c) a tea flask lining (d) an oven glove
  19. 19.🧱 Which property matters most for a skipping rope? (a) flexible (b) heat insulator (c) waterproof (d) transparent
  20. 20.🔍 Which is the odd one out? (a) brass (b) graphite (c) plastic (d) steel
  21. 21.🧱 Which property matters most for a hair band? (a) transparent (b) waterproof (c) electrical conductor (d) flexible
  22. 22.True or false: the core of a wire needs an electrical conductor. (a) False (b) True
  23. 23.🧱 Which property matters most for a yoga mat? (a) electrical conductor (b) heat insulator (c) flexible (d) transparent
  24. 24.🔍 Which is the odd one out? (a) plastic (b) cotton cloth (c) glass (d) copper
  25. 25.🧱 Is dry wood an electrical conductor or an insulator? (a) a conductor (b) an insulator
  26. 26.🔍 Which is the odd one out? (a) graphite (b) aluminium (c) glass (d) steel
  27. 27.True or false: a window pane needs a heat insulator. (a) True (b) False
  28. 28.🧱 Which material is best for a raincoat? (a) paper (b) plastic-coated cloth (c) cotton wool (d) cardboard
  29. 29.🧱 Is aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
  30. 30.🔍 Which is the odd one out? (a) cotton cloth (b) steel (c) iron (d) copper
  31. 31.🧱 Which property matters most for a roof sheet? (a) heat insulator (b) waterproof (c) transparent (d) electrical conductor
  32. 32.Which of these needs a heat insulator? (a) an umbrella cover (b) a cooking pot handle (c) a boat hull (d) a water tank
  33. 33.Which of these needs a flexible material? (a) the core of a wire (b) a hair band (c) an oven glove (d) a boat hull
  34. 34.Which of these needs a transparent material? (a) the core of a wire (b) a spectacle lens (c) a cooking pot handle (d) a tea flask lining
  35. 35.🧱 Is glass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  36. 36.🧱 Which property matters most for an oven glove? (a) waterproof (b) flexible (c) transparent (d) heat insulator
  37. 37.🧱 Which material is best for the bars inside concrete? (a) rubber (b) glass (c) plastic (d) steel
  38. 38.True or false: a magnifier lens needs an electrical conductor. (a) False (b) True
  39. 39.🧱 Which property matters most for the core of a wire? (a) heat insulator (b) flexible (c) transparent (d) electrical conductor
  40. 40.🔍 Which is the odd one out? (a) graphite (b) iron (c) steel (d) rubber

Answer key

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

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