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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 189 · 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 transparent material? (a) a boat hull (b) a spectacle lens (c) an umbrella cover (d) a switch contact
  2. 2.True or false: a skipping rope needs a flexible material. (a) False (b) True
  3. 3.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
  4. 4.🔍 Which is the odd one out? (a) glass (b) iron (c) brass (d) aluminium
  5. 5.🧱 Which property matters most for a roof sheet? (a) heat insulator (b) flexible (c) waterproof (d) transparent
  6. 6.Which of these needs a heat insulator? (a) a water tank (b) a car seat belt (c) a tea flask lining (d) a hair band
  7. 7.🧱 Which property matters most for an oven glove? (a) flexible (b) transparent (c) heat insulator (d) electrical conductor
  8. 8.Which of these needs an electrical conductor? (a) an umbrella cover (b) an oven glove (c) the core of a wire (d) a cooking pot handle
  9. 9.🧱 Which material is best for the core of an electric wire? (a) wood (b) rubber (c) copper (d) glass
  10. 10.Which of these needs a flexible material? (a) a water tank (b) a roof sheet (c) a window pane (d) a skipping rope
  11. 11.🧱 Which property matters most for a hair band? (a) heat insulator (b) transparent (c) electrical conductor (d) flexible
  12. 12.🧱 Which material is best for a cooking pot handle? (a) iron (b) wood or plastic (c) aluminium (d) copper
  13. 13.🔍 Which is the odd one out? (a) aluminium (b) clay pottery (c) rubber (d) cotton cloth
  14. 14.🔍 Which is the odd one out? (a) cotton cloth (b) rubber (c) glass (d) copper
  15. 15.🧱 Is aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
  16. 16.True or false: a magnifier lens needs a flexible material. (a) True (b) False
  17. 17.Which of these needs a transparent material? (a) a window pane (b) an umbrella cover (c) a switch contact (d) a raincoat
  18. 18.True or false: the core of a wire needs an electrical conductor. (a) True (b) False
  19. 19.🧱 Which material is best for a window pane? (a) wood (b) glass (c) steel (d) brick
  20. 20.True or false: a skipping rope needs an electrical conductor. (a) True (b) False
  21. 21.🧱 Which property matters most for a switch contact? (a) heat insulator (b) flexible (c) waterproof (d) electrical conductor
  22. 22.True or false: a plug pin needs a flexible material. (a) False (b) True
  23. 23.🧱 Which property matters most for a boat hull? (a) heat insulator (b) transparent (c) electrical conductor (d) waterproof
  24. 24.True or false: a water tank needs an electrical conductor. (a) True (b) False
  25. 25.Which of these needs a waterproof material? (a) an umbrella cover (b) a tea flask lining (c) a cooking pot handle (d) a skipping rope
  26. 26.🧱 Which property matters most for a magnifier lens? (a) heat insulator (b) transparent (c) waterproof (d) electrical conductor
  27. 27.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  28. 28.🧱 Which material is best for a raincoat? (a) paper (b) cardboard (c) cotton wool (d) plastic-coated cloth
  29. 29.🧱 Which property matters most for a yoga mat? (a) flexible (b) heat insulator (c) waterproof (d) transparent
  30. 30.True or false: a boat hull needs a waterproof material. (a) False (b) True
  31. 31.🧱 Which property matters most for a skipping rope? (a) transparent (b) heat insulator (c) flexible (d) waterproof
  32. 32.🧱 Which property matters most for a water tank? (a) waterproof (b) flexible (c) transparent (d) electrical conductor
  33. 33.Which of these needs a heat insulator? (a) a switch contact (b) a yoga mat (c) a water tank (d) a cooking pot handle
  34. 34.True or false: a car seat belt needs a heat insulator. (a) False (b) True
  35. 35.Which of these needs a transparent material? (a) a skipping rope (b) a plug pin (c) a car windscreen (d) a cooking pot handle
  36. 36.🧱 Which property matters most for a window pane? (a) flexible (b) heat insulator (c) transparent (d) waterproof
  37. 37.Which of these needs a waterproof material? (a) a magnifier lens (b) a switch contact (c) a raincoat (d) a plug pin
  38. 38.🔍 Which is the odd one out? (a) brass (b) graphite (c) dry wood (d) copper
  39. 39.🧱 Which property matters most for a car windscreen? (a) waterproof (b) heat insulator (c) transparent (d) flexible
  40. 40.🔍 Which is the odd one out? (a) brass (b) plastic (c) glass (d) clay pottery

Answer key

  1. a spectacle lens
  2. True
  3. a conductor
  4. glass
  5. waterproof
  6. a tea flask lining
  7. heat insulator
  8. the core of a wire
  9. copper
  10. a skipping rope
  11. flexible
  12. wood or plastic
  13. aluminium
  14. copper
  15. a conductor
  16. False
  17. a window pane
  18. True
  19. glass
  20. False
  21. electrical conductor
  22. False
  23. waterproof
  24. False
  25. an umbrella cover
  26. transparent
  27. a conductor
  28. plastic-coated cloth
  29. flexible
  30. True
  31. flexible
  32. waterproof
  33. a cooking pot handle
  34. False
  35. a car windscreen
  36. transparent
  37. a raincoat
  38. dry wood
  39. transparent
  40. brass

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