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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 987 · 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 boat hull? (a) flexible (b) electrical conductor (c) waterproof (d) transparent
  2. 2.🧱 Which property matters most for a tea flask lining? (a) electrical conductor (b) transparent (c) waterproof (d) heat insulator
  3. 3.Which of these needs an electrical conductor? (a) a plug pin (b) a cooking pot handle (c) a skipping rope (d) a tea flask lining
  4. 4.🧱 Which property matters most for a skipping rope? (a) transparent (b) heat insulator (c) flexible (d) waterproof
  5. 5.🔍 Which is the odd one out? (a) clay pottery (b) graphite (c) brass (d) copper
  6. 6.🧱 Is clay pottery an electrical conductor or an insulator? (a) a conductor (b) an insulator
  7. 7.🧱 Which material is best for the bars inside concrete? (a) steel (b) rubber (c) glass (d) plastic
  8. 8.True or false: the core of a wire needs a flexible material. (a) True (b) False
  9. 9.🧱 Which property matters most for a switch contact? (a) transparent (b) electrical conductor (c) flexible (d) heat insulator
  10. 10.🧱 Which material is best for a cooking pot handle? (a) aluminium (b) copper (c) wood or plastic (d) iron
  11. 11.🧱 Which property matters most for a plug pin? (a) transparent (b) heat insulator (c) electrical conductor (d) flexible
  12. 12.True or false: a water tank needs a heat insulator. (a) False (b) True
  13. 13.🔍 Which is the odd one out? (a) cotton cloth (b) iron (c) plastic (d) dry wood
  14. 14.🧱 Is brass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  15. 15.Which of these needs a heat insulator? (a) a magnifier lens (b) a skipping rope (c) a raincoat (d) a cooking pot handle
  16. 16.🧱 Which material is best for a window pane? (a) wood (b) steel (c) brick (d) glass
  17. 17.Which of these needs a flexible material? (a) an oven glove (b) a water tank (c) a skipping rope (d) an umbrella cover
  18. 18.Which of these needs a flexible material? (a) a switch contact (b) a boat hull (c) a car seat belt (d) a window pane
  19. 19.Which of these needs a waterproof material? (a) a plug pin (b) the core of a wire (c) a tea flask lining (d) a roof sheet
  20. 20.🧱 Which property matters most for a magnifier lens? (a) electrical conductor (b) flexible (c) transparent (d) heat insulator
  21. 21.🧱 Which property matters most for a window pane? (a) transparent (b) waterproof (c) heat insulator (d) electrical conductor
  22. 22.True or false: a tea flask lining needs an electrical conductor. (a) False (b) True
  23. 23.🧱 Which property matters most for a raincoat? (a) transparent (b) electrical conductor (c) flexible (d) waterproof
  24. 24.True or false: a hair band needs a flexible material. (a) False (b) True
  25. 25.🔍 Which is the odd one out? (a) cotton cloth (b) glass (c) copper (d) plastic
  26. 26.🧱 Which property matters most for a water tank? (a) heat insulator (b) waterproof (c) transparent (d) flexible
  27. 27.Which of these needs an electrical conductor? (a) a roof sheet (b) a skipping rope (c) the core of a wire (d) a cooking pot handle
  28. 28.Which of these needs a waterproof material? (a) a spectacle lens (b) a boat hull (c) a yoga mat (d) a tea flask lining
  29. 29.🔍 Which is the odd one out? (a) brass (b) plastic (c) steel (d) aluminium
  30. 30.🧱 Is rubber an electrical conductor or an insulator? (a) a conductor (b) an insulator
  31. 31.🧱 Is steel an electrical conductor or an insulator? (a) a conductor (b) an insulator
  32. 32.🧱 Which property matters most for a car windscreen? (a) electrical conductor (b) transparent (c) heat insulator (d) waterproof
  33. 33.True or false: a hair band needs a transparent material. (a) True (b) False
  34. 34.🧱 Is glass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  35. 35.🧱 Is dry wood an electrical conductor or an insulator? (a) an insulator (b) a conductor
  36. 36.🔍 Which is the odd one out? (a) graphite (b) rubber (c) dry wood (d) glass
  37. 37.🔍 Which is the odd one out? (a) aluminium (b) cotton cloth (c) plastic (d) rubber
  38. 38.🔍 Which is the odd one out? (a) rubber (b) cotton cloth (c) brass (d) plastic
  39. 39.🧱 Which material is best for a raincoat? (a) cotton wool (b) paper (c) cardboard (d) plastic-coated cloth
  40. 40.🧱 Which property matters most for the core of a wire? (a) transparent (b) flexible (c) heat insulator (d) electrical conductor

Answer key

  1. waterproof
  2. heat insulator
  3. a plug pin
  4. flexible
  5. clay pottery
  6. an insulator
  7. steel
  8. False
  9. electrical conductor
  10. wood or plastic
  11. electrical conductor
  12. False
  13. iron
  14. a conductor
  15. a cooking pot handle
  16. glass
  17. a skipping rope
  18. a car seat belt
  19. a roof sheet
  20. transparent
  21. transparent
  22. False
  23. waterproof
  24. True
  25. copper
  26. waterproof
  27. the core of a wire
  28. a boat hull
  29. plastic
  30. an insulator
  31. a conductor
  32. transparent
  33. False
  34. an insulator
  35. an insulator
  36. graphite
  37. aluminium
  38. brass
  39. plastic-coated cloth
  40. electrical conductor

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