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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 217 · 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 waterproof material? (a) a magnifier lens (b) a hair band (c) a plug pin (d) a raincoat
  2. 2.True or false: a skipping rope needs a heat insulator. (a) True (b) False
  3. 3.🧱 Which material is best for the core of an electric wire? (a) rubber (b) wood (c) glass (d) copper
  4. 4.🧱 Is clay pottery an electrical conductor or an insulator? (a) an insulator (b) a conductor
  5. 5.🧱 Which property matters most for a plug pin? (a) transparent (b) waterproof (c) electrical conductor (d) heat insulator
  6. 6.🧱 Which property matters most for a skipping rope? (a) transparent (b) flexible (c) electrical conductor (d) heat insulator
  7. 7.🧱 Which property matters most for a magnifier lens? (a) transparent (b) waterproof (c) flexible (d) heat insulator
  8. 8.🧱 Is brass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  9. 9.Which of these needs an electrical conductor? (a) a water tank (b) a skipping rope (c) a raincoat (d) the core of a wire
  10. 10.Which of these needs a flexible material? (a) a tea flask lining (b) a roof sheet (c) a yoga mat (d) a switch contact
  11. 11.🧱 Which material is best for a window pane? (a) steel (b) brick (c) wood (d) glass
  12. 12.🔍 Which is the odd one out? (a) plastic (b) rubber (c) steel (d) cotton cloth
  13. 13.Which of these needs a waterproof material? (a) a tea flask lining (b) an oven glove (c) a boat hull (d) a spectacle lens
  14. 14.🔍 Which is the odd one out? (a) clay pottery (b) copper (c) cotton cloth (d) dry wood
  15. 15.🧱 Which material is best for the bars inside concrete? (a) rubber (b) steel (c) glass (d) plastic
  16. 16.🧱 Which property matters most for a tea flask lining? (a) flexible (b) transparent (c) waterproof (d) heat insulator
  17. 17.🔍 Which is the odd one out? (a) clay pottery (b) glass (c) cotton cloth (d) graphite
  18. 18.🧱 Is cotton cloth an electrical conductor or an insulator? (a) an insulator (b) a conductor
  19. 19.🔍 Which is the odd one out? (a) brass (b) clay pottery (c) cotton cloth (d) rubber
  20. 20.Which of these needs an electrical conductor? (a) a skipping rope (b) a yoga mat (c) a roof sheet (d) a switch contact
  21. 21.True or false: an umbrella cover needs a heat insulator. (a) False (b) True
  22. 22.🔍 Which is the odd one out? (a) copper (b) steel (c) iron (d) clay pottery
  23. 23.🔍 Which is the odd one out? (a) glass (b) copper (c) aluminium (d) brass
  24. 24.Which of these needs a transparent material? (a) a yoga mat (b) a magnifier lens (c) a tea flask lining (d) a skipping rope
  25. 25.🧱 Which property matters most for a hair band? (a) electrical conductor (b) waterproof (c) transparent (d) flexible
  26. 26.🧱 Is dry wood an electrical conductor or an insulator? (a) an insulator (b) a conductor
  27. 27.🧱 Which property matters most for a window pane? (a) heat insulator (b) transparent (c) waterproof (d) electrical conductor
  28. 28.Which of these needs a transparent material? (a) a plug pin (b) an oven glove (c) a window pane (d) a car seat belt
  29. 29.True or false: a tea flask lining needs an electrical conductor. (a) False (b) True
  30. 30.🧱 Which property matters most for a spectacle lens? (a) transparent (b) flexible (c) waterproof (d) heat insulator
  31. 31.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
  32. 32.True or false: a water tank needs a heat insulator. (a) True (b) False
  33. 33.🧱 Which property matters most for an oven glove? (a) electrical conductor (b) waterproof (c) heat insulator (d) flexible
  34. 34.True or false: the core of a wire needs an electrical conductor. (a) False (b) True
  35. 35.🧱 Which material is best for a cooking pot handle? (a) iron (b) wood or plastic (c) copper (d) aluminium
  36. 36.🔍 Which is the odd one out? (a) iron (b) dry wood (c) plastic (d) clay pottery
  37. 37.Which of these needs a flexible material? (a) a water tank (b) a car seat belt (c) a raincoat (d) a cooking pot handle
  38. 38.True or false: a boat hull needs a transparent material. (a) True (b) False
  39. 39.True or false: a water tank needs an electrical conductor. (a) False (b) True
  40. 40.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor

Answer key

  1. a raincoat
  2. False
  3. copper
  4. an insulator
  5. electrical conductor
  6. flexible
  7. transparent
  8. a conductor
  9. the core of a wire
  10. a yoga mat
  11. glass
  12. steel
  13. a boat hull
  14. copper
  15. steel
  16. heat insulator
  17. graphite
  18. an insulator
  19. brass
  20. a switch contact
  21. False
  22. clay pottery
  23. glass
  24. a magnifier lens
  25. flexible
  26. an insulator
  27. transparent
  28. a window pane
  29. False
  30. transparent
  31. an insulator
  32. False
  33. heat insulator
  34. True
  35. wood or plastic
  36. iron
  37. a car seat belt
  38. False
  39. False
  40. a conductor

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