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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 372 · 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) waterproof (b) transparent (c) heat insulator (d) flexible
  2. 2.Which of these needs a heat insulator? (a) a magnifier lens (b) a water tank (c) a spectacle lens (d) an oven glove
  3. 3.🧱 Which material is best for a raincoat? (a) plastic-coated cloth (b) cotton wool (c) cardboard (d) paper
  4. 4.🧱 Is copper an electrical conductor or an insulator? (a) a conductor (b) an insulator
  5. 5.🧱 Which material is best for a window pane? (a) glass (b) steel (c) brick (d) wood
  6. 6.🔍 Which is the odd one out? (a) aluminium (b) copper (c) graphite (d) clay pottery
  7. 7.True or false: a window pane needs an electrical conductor. (a) True (b) False
  8. 8.🧱 Which property matters most for the core of a wire? (a) waterproof (b) heat insulator (c) electrical conductor (d) flexible
  9. 9.Which of these needs a flexible material? (a) a cooking pot handle (b) a yoga mat (c) a water tank (d) a roof sheet
  10. 10.🔍 Which is the odd one out? (a) glass (b) plastic (c) aluminium (d) rubber
  11. 11.🧱 Which property matters most for a plug pin? (a) electrical conductor (b) waterproof (c) flexible (d) heat insulator
  12. 12.🔍 Which is the odd one out? (a) copper (b) iron (c) aluminium (d) rubber
  13. 13.Which of these needs a heat insulator? (a) the core of a wire (b) a cooking pot handle (c) an umbrella cover (d) a car windscreen
  14. 14.Which of these needs a heat insulator? (a) a yoga mat (b) a water tank (c) a tea flask lining (d) a magnifier lens
  15. 15.🧱 Which property matters most for a water tank? (a) transparent (b) waterproof (c) electrical conductor (d) flexible
  16. 16.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
  17. 17.🧱 Which property matters most for a boat hull? (a) electrical conductor (b) transparent (c) flexible (d) waterproof
  18. 18.True or false: a spectacle lens needs a transparent material. (a) False (b) True
  19. 19.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  20. 20.🧱 Which property matters most for an umbrella cover? (a) flexible (b) transparent (c) waterproof (d) heat insulator
  21. 21.🧱 Which material is best for the bars inside concrete? (a) plastic (b) rubber (c) steel (d) glass
  22. 22.🧱 Which property matters most for a hair band? (a) electrical conductor (b) transparent (c) flexible (d) waterproof
  23. 23.True or false: an umbrella cover needs a flexible material. (a) True (b) False
  24. 24.Which of these needs a transparent material? (a) a boat hull (b) a car seat belt (c) a spectacle lens (d) a plug pin
  25. 25.True or false: a yoga mat needs a flexible material. (a) True (b) False
  26. 26.🧱 Is glass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  27. 27.🧱 Is brass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  28. 28.True or false: the core of a wire needs a transparent material. (a) False (b) True
  29. 29.🧱 Which property matters most for a raincoat? (a) flexible (b) electrical conductor (c) waterproof (d) transparent
  30. 30.Which of these needs a flexible material? (a) a boat hull (b) the core of a wire (c) a magnifier lens (d) a hair band
  31. 31.🧱 Which property matters most for a spectacle lens? (a) transparent (b) waterproof (c) electrical conductor (d) heat insulator
  32. 32.🔍 Which is the odd one out? (a) iron (b) cotton cloth (c) brass (d) steel
  33. 33.Which of these needs an electrical conductor? (a) a water tank (b) a switch contact (c) a boat hull (d) a car seat belt
  34. 34.🧱 Which material is best for the core of an electric wire? (a) glass (b) copper (c) rubber (d) wood
  35. 35.Which of these needs an electrical conductor? (a) a boat hull (b) a hair band (c) a plug pin (d) a window pane
  36. 36.Which of these needs a waterproof material? (a) a window pane (b) a car windscreen (c) a spectacle lens (d) an umbrella cover
  37. 37.Which of these needs a waterproof material? (a) a car seat belt (b) a window pane (c) a raincoat (d) a magnifier lens
  38. 38.🧱 Which property matters most for a tea flask lining? (a) transparent (b) electrical conductor (c) heat insulator (d) flexible
  39. 39.True or false: a window pane needs a transparent material. (a) True (b) False
  40. 40.🔍 Which is the odd one out? (a) graphite (b) plastic (c) glass (d) dry wood

Answer key

  1. transparent
  2. an oven glove
  3. plastic-coated cloth
  4. a conductor
  5. glass
  6. clay pottery
  7. False
  8. electrical conductor
  9. a yoga mat
  10. aluminium
  11. electrical conductor
  12. rubber
  13. a cooking pot handle
  14. a tea flask lining
  15. waterproof
  16. a conductor
  17. waterproof
  18. True
  19. a conductor
  20. waterproof
  21. steel
  22. flexible
  23. False
  24. a spectacle lens
  25. True
  26. an insulator
  27. a conductor
  28. False
  29. waterproof
  30. a hair band
  31. transparent
  32. cotton cloth
  33. a switch contact
  34. copper
  35. a plug pin
  36. an umbrella cover
  37. a raincoat
  38. heat insulator
  39. True
  40. graphite

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