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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 120 · 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 an umbrella cover? (a) transparent (b) flexible (c) electrical conductor (d) waterproof
  2. 2.🔍 Which is the odd one out? (a) aluminium (b) graphite (c) dry wood (d) iron
  3. 3.🧱 Which material is best for the bars inside concrete? (a) rubber (b) plastic (c) glass (d) steel
  4. 4.🧱 Is aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
  5. 5.🧱 Is steel an electrical conductor or an insulator? (a) a conductor (b) an insulator
  6. 6.🧱 Which material is best for a raincoat? (a) paper (b) cotton wool (c) cardboard (d) plastic-coated cloth
  7. 7.🔍 Which is the odd one out? (a) steel (b) cotton cloth (c) iron (d) graphite
  8. 8.🧱 Which material is best for the core of an electric wire? (a) rubber (b) glass (c) wood (d) copper
  9. 9.True or false: a window pane needs an electrical conductor. (a) True (b) False
  10. 10.🧱 Which property matters most for a switch contact? (a) flexible (b) transparent (c) heat insulator (d) electrical conductor
  11. 11.Which of these needs a waterproof material? (a) a roof sheet (b) a magnifier lens (c) a tea flask lining (d) a cooking pot handle
  12. 12.Which of these needs a heat insulator? (a) a hair band (b) a cooking pot handle (c) a raincoat (d) a window pane
  13. 13.🧱 Which property matters most for a window pane? (a) flexible (b) heat insulator (c) waterproof (d) transparent
  14. 14.🧱 Which property matters most for a roof sheet? (a) flexible (b) electrical conductor (c) waterproof (d) transparent
  15. 15.🔍 Which is the odd one out? (a) steel (b) aluminium (c) graphite (d) rubber
  16. 16.🧱 Which property matters most for a hair band? (a) waterproof (b) electrical conductor (c) heat insulator (d) flexible
  17. 17.🔍 Which is the odd one out? (a) aluminium (b) iron (c) graphite (d) plastic
  18. 18.🧱 Is graphite an electrical conductor or an insulator? (a) a conductor (b) an insulator
  19. 19.Which of these needs a flexible material? (a) an umbrella cover (b) a plug pin (c) a cooking pot handle (d) a yoga mat
  20. 20.🧱 Is glass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  21. 21.🧱 Which property matters most for a magnifier lens? (a) heat insulator (b) waterproof (c) electrical conductor (d) transparent
  22. 22.🧱 Which property matters most for a raincoat? (a) electrical conductor (b) heat insulator (c) flexible (d) waterproof
  23. 23.Which of these needs a heat insulator? (a) a hair band (b) a plug pin (c) an umbrella cover (d) a tea flask lining
  24. 24.Which of these needs a waterproof material? (a) a hair band (b) a window pane (c) a tea flask lining (d) a raincoat
  25. 25.🔍 Which is the odd one out? (a) plastic (b) cotton cloth (c) brass (d) glass
  26. 26.Which of these needs a flexible material? (a) a tea flask lining (b) a spectacle lens (c) a water tank (d) a skipping rope
  27. 27.🧱 Is cotton cloth an electrical conductor or an insulator? (a) an insulator (b) a conductor
  28. 28.True or false: a raincoat needs a waterproof material. (a) False (b) True
  29. 29.🔍 Which is the odd one out? (a) plastic (b) cotton cloth (c) copper (d) glass
  30. 30.🔍 Which is the odd one out? (a) rubber (b) plastic (c) clay pottery (d) aluminium
  31. 31.🧱 Which property matters most for an oven glove? (a) heat insulator (b) flexible (c) waterproof (d) electrical conductor
  32. 32.Which of these needs an electrical conductor? (a) a boat hull (b) a switch contact (c) a magnifier lens (d) a spectacle lens
  33. 33.🧱 Which material is best for a window pane? (a) glass (b) steel (c) brick (d) wood
  34. 34.True or false: a cooking pot handle needs a waterproof material. (a) True (b) False
  35. 35.🧱 Is clay pottery an electrical conductor or an insulator? (a) an insulator (b) a conductor
  36. 36.Which of these needs a transparent material? (a) a water tank (b) a skipping rope (c) a window pane (d) a yoga mat
  37. 37.Which of these needs a flexible material? (a) a roof sheet (b) a car seat belt (c) a boat hull (d) a window pane
  38. 38.Which of these needs a transparent material? (a) a plug pin (b) a car seat belt (c) a water tank (d) a car windscreen
  39. 39.True or false: a yoga mat needs a waterproof material. (a) False (b) True
  40. 40.Which of these needs an electrical conductor? (a) a boat hull (b) a skipping rope (c) a raincoat (d) the core of a wire

Answer key

  1. waterproof
  2. dry wood
  3. steel
  4. a conductor
  5. a conductor
  6. plastic-coated cloth
  7. cotton cloth
  8. copper
  9. False
  10. electrical conductor
  11. a roof sheet
  12. a cooking pot handle
  13. transparent
  14. waterproof
  15. rubber
  16. flexible
  17. plastic
  18. a conductor
  19. a yoga mat
  20. an insulator
  21. transparent
  22. waterproof
  23. a tea flask lining
  24. a raincoat
  25. brass
  26. a skipping rope
  27. an insulator
  28. True
  29. copper
  30. aluminium
  31. heat insulator
  32. a switch contact
  33. glass
  34. False
  35. an insulator
  36. a window pane
  37. a car seat belt
  38. a car windscreen
  39. False
  40. the core of a wire

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