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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 758 · 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.🧱 Is cotton cloth an electrical conductor or an insulator? (a) an insulator (b) a conductor
  2. 2.🧱 Which property matters most for a switch contact? (a) heat insulator (b) waterproof (c) electrical conductor (d) flexible
  3. 3.🧱 Which material is best for the core of an electric wire? (a) glass (b) rubber (c) copper (d) wood
  4. 4.🔍 Which is the odd one out? (a) dry wood (b) copper (c) cotton cloth (d) plastic
  5. 5.True or false: a tea flask lining needs a heat insulator. (a) True (b) False
  6. 6.🧱 Which property matters most for a boat hull? (a) waterproof (b) flexible (c) transparent (d) heat insulator
  7. 7.🔍 Which is the odd one out? (a) steel (b) aluminium (c) plastic (d) brass
  8. 8.🧱 Is clay pottery an electrical conductor or an insulator? (a) an insulator (b) a conductor
  9. 9.🔍 Which is the odd one out? (a) copper (b) glass (c) aluminium (d) brass
  10. 10.🧱 Is copper an electrical conductor or an insulator? (a) a conductor (b) an insulator
  11. 11.Which of these needs a heat insulator? (a) a boat hull (b) a car windscreen (c) an oven glove (d) a plug pin
  12. 12.Which of these needs a waterproof material? (a) a tea flask lining (b) a plug pin (c) a boat hull (d) a spectacle lens
  13. 13.🧱 Which material is best for a raincoat? (a) cotton wool (b) paper (c) cardboard (d) plastic-coated cloth
  14. 14.True or false: a skipping rope needs a waterproof material. (a) True (b) False
  15. 15.🧱 Which material is best for the bars inside concrete? (a) steel (b) plastic (c) rubber (d) glass
  16. 16.Which of these needs an electrical conductor? (a) a car windscreen (b) a skipping rope (c) a window pane (d) the core of a wire
  17. 17.🧱 Which property matters most for the core of a wire? (a) transparent (b) waterproof (c) electrical conductor (d) heat insulator
  18. 18.🧱 Which property matters most for a cooking pot handle? (a) heat insulator (b) transparent (c) waterproof (d) flexible
  19. 19.🧱 Which property matters most for a tea flask lining? (a) heat insulator (b) waterproof (c) transparent (d) electrical conductor
  20. 20.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  21. 21.🔍 Which is the odd one out? (a) dry wood (b) glass (c) cotton cloth (d) graphite
  22. 22.🔍 Which is the odd one out? (a) glass (b) clay pottery (c) steel (d) plastic
  23. 23.🔍 Which is the odd one out? (a) dry wood (b) rubber (c) clay pottery (d) aluminium
  24. 24.Which of these needs a flexible material? (a) an umbrella cover (b) a roof sheet (c) a hair band (d) a water tank
  25. 25.Which of these needs an electrical conductor? (a) a boat hull (b) a switch contact (c) a water tank (d) a skipping rope
  26. 26.True or false: the core of a wire needs a waterproof material. (a) False (b) True
  27. 27.🧱 Which material is best for a window pane? (a) brick (b) wood (c) glass (d) steel
  28. 28.Which of these needs a heat insulator? (a) a window pane (b) a yoga mat (c) a tea flask lining (d) a car windscreen
  29. 29.🧱 Is dry wood an electrical conductor or an insulator? (a) an insulator (b) a conductor
  30. 30.🔍 Which is the odd one out? (a) graphite (b) brass (c) clay pottery (d) steel
  31. 31.True or false: a yoga mat needs a flexible material. (a) False (b) True
  32. 32.Which of these needs a flexible material? (a) a window pane (b) a raincoat (c) a yoga mat (d) a plug pin
  33. 33.🧱 Is steel an electrical conductor or an insulator? (a) a conductor (b) an insulator
  34. 34.🧱 Which property matters most for a magnifier lens? (a) transparent (b) heat insulator (c) flexible (d) electrical conductor
  35. 35.Which of these needs a transparent material? (a) an oven glove (b) a raincoat (c) a window pane (d) a car seat belt
  36. 36.🧱 Which property matters most for an oven glove? (a) electrical conductor (b) heat insulator (c) waterproof (d) transparent
  37. 37.True or false: a raincoat needs a waterproof material. (a) False (b) True
  38. 38.Which of these needs a waterproof material? (a) the core of a wire (b) an oven glove (c) a car seat belt (d) a water tank
  39. 39.🧱 Which material is best for a cooking pot handle? (a) aluminium (b) wood or plastic (c) iron (d) copper
  40. 40.True or false: a boat hull needs a transparent material. (a) True (b) False

Answer key

  1. an insulator
  2. electrical conductor
  3. copper
  4. copper
  5. True
  6. waterproof
  7. plastic
  8. an insulator
  9. glass
  10. a conductor
  11. an oven glove
  12. a boat hull
  13. plastic-coated cloth
  14. False
  15. steel
  16. the core of a wire
  17. electrical conductor
  18. heat insulator
  19. heat insulator
  20. a conductor
  21. graphite
  22. steel
  23. aluminium
  24. a hair band
  25. a switch contact
  26. False
  27. glass
  28. a tea flask lining
  29. an insulator
  30. clay pottery
  31. True
  32. a yoga mat
  33. a conductor
  34. transparent
  35. a window pane
  36. heat insulator
  37. True
  38. a water tank
  39. wood or plastic
  40. False

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