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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 258 · 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 is the odd one out? (a) rubber (b) graphite (c) glass (d) clay pottery
  2. 2.🧱 Is glass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  3. 3.🔍 Which is the odd one out? (a) brass (b) graphite (c) iron (d) glass
  4. 4.🧱 Which property matters most for a spectacle lens? (a) waterproof (b) flexible (c) electrical conductor (d) transparent
  5. 5.🧱 Which property matters most for a tea flask lining? (a) heat insulator (b) flexible (c) waterproof (d) electrical conductor
  6. 6.🧱 Which material is best for the core of an electric wire? (a) copper (b) rubber (c) wood (d) glass
  7. 7.True or false: a water tank needs an electrical conductor. (a) False (b) True
  8. 8.🧱 Which material is best for a raincoat? (a) cotton wool (b) cardboard (c) plastic-coated cloth (d) paper
  9. 9.Which of these needs a waterproof material? (a) a spectacle lens (b) a switch contact (c) a window pane (d) a boat hull
  10. 10.🔍 Which is the odd one out? (a) copper (b) brass (c) iron (d) plastic
  11. 11.True or false: a boat hull needs a flexible material. (a) True (b) False
  12. 12.🧱 Is cotton cloth an electrical conductor or an insulator? (a) an insulator (b) a conductor
  13. 13.🧱 Which property matters most for a window pane? (a) flexible (b) transparent (c) waterproof (d) heat insulator
  14. 14.🔍 Which is the odd one out? (a) plastic (b) clay pottery (c) glass (d) steel
  15. 15.Which of these needs a waterproof material? (a) an oven glove (b) a switch contact (c) the core of a wire (d) a raincoat
  16. 16.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  17. 17.🧱 Is brass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  18. 18.True or false: a roof sheet needs a waterproof material. (a) False (b) True
  19. 19.🧱 Which property matters most for a plug pin? (a) flexible (b) heat insulator (c) electrical conductor (d) waterproof
  20. 20.True or false: a skipping rope needs a flexible material. (a) True (b) False
  21. 21.True or false: a water tank needs a transparent material. (a) True (b) False
  22. 22.🧱 Which property matters most for a skipping rope? (a) waterproof (b) flexible (c) electrical conductor (d) heat insulator
  23. 23.Which of these needs a flexible material? (a) a car seat belt (b) an oven glove (c) a roof sheet (d) the core of a wire
  24. 24.Which of these needs a transparent material? (a) a yoga mat (b) an oven glove (c) a cooking pot handle (d) a spectacle lens
  25. 25.🔍 Which is the odd one out? (a) glass (b) cotton cloth (c) brass (d) dry wood
  26. 26.🔍 Which is the odd one out? (a) clay pottery (b) iron (c) brass (d) aluminium
  27. 27.🔍 Which is the odd one out? (a) clay pottery (b) iron (c) glass (d) rubber
  28. 28.True or false: a window pane needs a transparent material. (a) False (b) True
  29. 29.Which of these needs an electrical conductor? (a) a yoga mat (b) a roof sheet (c) a switch contact (d) a cooking pot handle
  30. 30.🔍 Which is the odd one out? (a) clay pottery (b) copper (c) rubber (d) glass
  31. 31.Which of these needs a heat insulator? (a) a boat hull (b) a window pane (c) an oven glove (d) a raincoat
  32. 32.🔍 Which is the odd one out? (a) brass (b) iron (c) copper (d) dry wood
  33. 33.True or false: a cooking pot handle needs a heat insulator. (a) False (b) True
  34. 34.True or false: a car windscreen needs a waterproof material. (a) True (b) False
  35. 35.True or false: a tea flask lining needs a heat insulator. (a) False (b) True
  36. 36.🧱 Which property matters most for a raincoat? (a) waterproof (b) heat insulator (c) electrical conductor (d) flexible
  37. 37.True or false: a boat hull needs an electrical conductor. (a) True (b) False
  38. 38.Which of these needs a heat insulator? (a) a cooking pot handle (b) a skipping rope (c) a spectacle lens (d) a boat hull
  39. 39.🧱 Which material is best for the bars inside concrete? (a) rubber (b) glass (c) steel (d) plastic
  40. 40.Which of these needs a flexible material? (a) a raincoat (b) a hair band (c) a water tank (d) an oven glove

Answer key

  1. graphite
  2. an insulator
  3. glass
  4. transparent
  5. heat insulator
  6. copper
  7. False
  8. plastic-coated cloth
  9. a boat hull
  10. plastic
  11. False
  12. an insulator
  13. transparent
  14. steel
  15. a raincoat
  16. a conductor
  17. a conductor
  18. True
  19. electrical conductor
  20. True
  21. False
  22. flexible
  23. a car seat belt
  24. a spectacle lens
  25. brass
  26. clay pottery
  27. iron
  28. True
  29. a switch contact
  30. copper
  31. an oven glove
  32. dry wood
  33. True
  34. False
  35. True
  36. waterproof
  37. False
  38. a cooking pot handle
  39. steel
  40. a hair band

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