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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 872 · 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 material is best for the core of an electric wire? (a) wood (b) copper (c) glass (d) rubber
  2. 2.Which of these needs a heat insulator? (a) a roof sheet (b) a car windscreen (c) a yoga mat (d) an oven glove
  3. 3.Which of these needs a transparent material? (a) a boat hull (b) a window pane (c) a raincoat (d) a tea flask lining
  4. 4.Which of these needs a waterproof material? (a) a tea flask lining (b) a car windscreen (c) a boat hull (d) a switch contact
  5. 5.🔍 Which is the odd one out? (a) iron (b) aluminium (c) graphite (d) rubber
  6. 6.🧱 Is graphite an electrical conductor or an insulator? (a) a conductor (b) an insulator
  7. 7.True or false: a window pane needs an electrical conductor. (a) False (b) True
  8. 8.🧱 Which property matters most for a water tank? (a) waterproof (b) electrical conductor (c) heat insulator (d) flexible
  9. 9.🧱 Which property matters most for the core of a wire? (a) transparent (b) electrical conductor (c) heat insulator (d) flexible
  10. 10.True or false: a window pane needs a transparent material. (a) False (b) True
  11. 11.🔍 Which is the odd one out? (a) steel (b) dry wood (c) aluminium (d) iron
  12. 12.🔍 Which is the odd one out? (a) brass (b) copper (c) plastic (d) steel
  13. 13.True or false: a water tank needs an electrical conductor. (a) False (b) True
  14. 14.Which of these needs a flexible material? (a) a switch contact (b) a hair band (c) a car windscreen (d) a tea flask lining
  15. 15.Which of these needs an electrical conductor? (a) a car windscreen (b) an oven glove (c) a magnifier lens (d) the core of a wire
  16. 16.🧱 Is brass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  17. 17.🧱 Which property matters most for a window pane? (a) transparent (b) electrical conductor (c) flexible (d) heat insulator
  18. 18.🔍 Which is the odd one out? (a) steel (b) dry wood (c) rubber (d) plastic
  19. 19.🔍 Which is the odd one out? (a) copper (b) plastic (c) clay pottery (d) dry wood
  20. 20.Which of these needs a transparent material? (a) a roof sheet (b) a spectacle lens (c) a raincoat (d) a switch contact
  21. 21.🧱 Which material is best for a cooking pot handle? (a) aluminium (b) iron (c) copper (d) wood or plastic
  22. 22.🧱 Which property matters most for a switch contact? (a) heat insulator (b) flexible (c) waterproof (d) electrical conductor
  23. 23.True or false: a cooking pot handle needs a waterproof material. (a) True (b) False
  24. 24.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
  25. 25.🧱 Which property matters most for an umbrella cover? (a) electrical conductor (b) flexible (c) waterproof (d) transparent
  26. 26.Which of these needs an electrical conductor? (a) a boat hull (b) an oven glove (c) a hair band (d) a switch contact
  27. 27.Which of these needs a transparent material? (a) a boat hull (b) a tea flask lining (c) a plug pin (d) a magnifier lens
  28. 28.🧱 Which property matters most for a boat hull? (a) electrical conductor (b) heat insulator (c) transparent (d) waterproof
  29. 29.🧱 Which property matters most for a hair band? (a) waterproof (b) electrical conductor (c) transparent (d) flexible
  30. 30.True or false: a magnifier lens needs a transparent material. (a) True (b) False
  31. 31.🔍 Which is the odd one out? (a) clay pottery (b) aluminium (c) glass (d) plastic
  32. 32.🧱 Is dry wood an electrical conductor or an insulator? (a) a conductor (b) an insulator
  33. 33.🧱 Which material is best for a raincoat? (a) cotton wool (b) plastic-coated cloth (c) cardboard (d) paper
  34. 34.🧱 Which property matters most for a car windscreen? (a) transparent (b) flexible (c) waterproof (d) heat insulator
  35. 35.True or false: a raincoat needs a flexible material. (a) False (b) True
  36. 36.True or false: an umbrella cover needs a transparent material. (a) False (b) True
  37. 37.🧱 Which property matters most for a spectacle lens? (a) waterproof (b) heat insulator (c) transparent (d) flexible
  38. 38.🧱 Which material is best for a window pane? (a) steel (b) glass (c) brick (d) wood
  39. 39.Which of these needs an electrical conductor? (a) an oven glove (b) a window pane (c) a plug pin (d) a hair band
  40. 40.🧱 Is clay pottery an electrical conductor or an insulator? (a) a conductor (b) an insulator

Answer key

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

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