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Engineering Worksheet: Materials

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

Answer key

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

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