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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 446 · 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) clay pottery (b) steel (c) plastic (d) cotton cloth
  2. 2.🧱 Which material is best for a window pane? (a) steel (b) wood (c) brick (d) glass
  3. 3.🔍 Which is the odd one out? (a) graphite (b) dry wood (c) cotton cloth (d) plastic
  4. 4.Which of these needs an electrical conductor? (a) a plug pin (b) a water tank (c) a spectacle lens (d) a tea flask lining
  5. 5.Which of these needs a transparent material? (a) a spectacle lens (b) a switch contact (c) a car seat belt (d) a cooking pot handle
  6. 6.Which of these needs a flexible material? (a) a spectacle lens (b) a raincoat (c) an umbrella cover (d) a hair band
  7. 7.True or false: a window pane needs a heat insulator. (a) False (b) True
  8. 8.🔍 Which is the odd one out? (a) glass (b) dry wood (c) cotton cloth (d) brass
  9. 9.🧱 Which property matters most for a window pane? (a) transparent (b) heat insulator (c) flexible (d) electrical conductor
  10. 10.🧱 Is glass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  11. 11.🧱 Which property matters most for an umbrella cover? (a) electrical conductor (b) waterproof (c) flexible (d) transparent
  12. 12.🧱 Which property matters most for an oven glove? (a) flexible (b) electrical conductor (c) waterproof (d) heat insulator
  13. 13.Which of these needs a waterproof material? (a) a hair band (b) a boat hull (c) a window pane (d) the core of a wire
  14. 14.True or false: a car seat belt needs a flexible material. (a) False (b) True
  15. 15.🧱 Which material is best for the bars inside concrete? (a) glass (b) plastic (c) steel (d) rubber
  16. 16.🧱 Which material is best for a cooking pot handle? (a) copper (b) wood or plastic (c) aluminium (d) iron
  17. 17.Which of these needs a transparent material? (a) a roof sheet (b) a hair band (c) a switch contact (d) a car windscreen
  18. 18.🧱 Which property matters most for a plug pin? (a) electrical conductor (b) transparent (c) waterproof (d) flexible
  19. 19.Which of these needs a heat insulator? (a) a cooking pot handle (b) a hair band (c) a car seat belt (d) a roof sheet
  20. 20.True or false: a cooking pot handle needs an electrical conductor. (a) True (b) False
  21. 21.🧱 Which property matters most for a switch contact? (a) waterproof (b) electrical conductor (c) transparent (d) flexible
  22. 22.🧱 Which property matters most for a magnifier lens? (a) waterproof (b) transparent (c) electrical conductor (d) heat insulator
  23. 23.🔍 Which is the odd one out? (a) clay pottery (b) cotton cloth (c) copper (d) dry wood
  24. 24.True or false: a raincoat needs a waterproof material. (a) False (b) True
  25. 25.Which of these needs an electrical conductor? (a) a boat hull (b) a switch contact (c) a hair band (d) a water tank
  26. 26.🔍 Which is the odd one out? (a) rubber (b) cotton cloth (c) aluminium (d) glass
  27. 27.True or false: a car seat belt needs an electrical conductor. (a) False (b) True
  28. 28.🧱 Is brass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  29. 29.🔍 Which is the odd one out? (a) graphite (b) iron (c) cotton cloth (d) brass
  30. 30.Which of these needs a heat insulator? (a) a raincoat (b) a car seat belt (c) a tea flask lining (d) an umbrella cover
  31. 31.True or false: an oven glove needs a flexible material. (a) False (b) True
  32. 32.🔍 Which is the odd one out? (a) copper (b) graphite (c) clay pottery (d) iron
  33. 33.Which of these needs a flexible material? (a) a yoga mat (b) a raincoat (c) a tea flask lining (d) a spectacle lens
  34. 34.🧱 Which property matters most for a skipping rope? (a) flexible (b) waterproof (c) heat insulator (d) electrical conductor
  35. 35.True or false: a tea flask lining needs a heat insulator. (a) False (b) True
  36. 36.🧱 Which material is best for a raincoat? (a) cotton wool (b) plastic-coated cloth (c) cardboard (d) paper
  37. 37.True or false: a switch contact needs an electrical conductor. (a) True (b) False
  38. 38.🔍 Which is the odd one out? (a) aluminium (b) copper (c) graphite (d) dry wood
  39. 39.True or false: an oven glove needs a heat insulator. (a) False (b) True
  40. 40.True or false: a window pane needs an electrical conductor. (a) True (b) False

Answer key

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

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