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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 810 · 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.🧱 Is cotton cloth an electrical conductor or an insulator? (a) a conductor (b) an insulator
  2. 2.🔍 Which is the odd one out? (a) glass (b) cotton cloth (c) copper (d) plastic
  3. 3.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
  4. 4.🧱 Which material is best for a cooking pot handle? (a) iron (b) wood or plastic (c) copper (d) aluminium
  5. 5.🧱 Is graphite an electrical conductor or an insulator? (a) a conductor (b) an insulator
  6. 6.🧱 Which material is best for the bars inside concrete? (a) rubber (b) plastic (c) glass (d) steel
  7. 7.True or false: a boat hull needs a waterproof material. (a) False (b) True
  8. 8.🔍 Which is the odd one out? (a) copper (b) steel (c) graphite (d) glass
  9. 9.🧱 Which material is best for a window pane? (a) glass (b) brick (c) steel (d) wood
  10. 10.True or false: a spectacle lens needs a transparent material. (a) False (b) True
  11. 11.🧱 Which property matters most for a hair band? (a) transparent (b) electrical conductor (c) waterproof (d) flexible
  12. 12.🧱 Which material is best for the core of an electric wire? (a) wood (b) glass (c) copper (d) rubber
  13. 13.True or false: a raincoat needs a waterproof material. (a) False (b) True
  14. 14.Which of these needs a heat insulator? (a) a raincoat (b) a plug pin (c) the core of a wire (d) an oven glove
  15. 15.🧱 Which property matters most for a switch contact? (a) transparent (b) waterproof (c) electrical conductor (d) flexible
  16. 16.🧱 Is aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
  17. 17.Which of these needs an electrical conductor? (a) a switch contact (b) a hair band (c) a water tank (d) an umbrella cover
  18. 18.🔍 Which is the odd one out? (a) brass (b) graphite (c) dry wood (d) steel
  19. 19.True or false: a hair band needs a flexible material. (a) True (b) False
  20. 20.Which of these needs a waterproof material? (a) a window pane (b) a hair band (c) a roof sheet (d) a yoga mat
  21. 21.🧱 Which material is best for a raincoat? (a) paper (b) plastic-coated cloth (c) cotton wool (d) cardboard
  22. 22.True or false: a window pane needs a transparent material. (a) True (b) False
  23. 23.🧱 Is clay pottery an electrical conductor or an insulator? (a) an insulator (b) a conductor
  24. 24.Which of these needs a flexible material? (a) a roof sheet (b) a raincoat (c) a car seat belt (d) a plug pin
  25. 25.🔍 Which is the odd one out? (a) cotton cloth (b) steel (c) iron (d) copper
  26. 26.🧱 Which property matters most for a raincoat? (a) transparent (b) flexible (c) heat insulator (d) waterproof
  27. 27.🔍 Which is the odd one out? (a) dry wood (b) glass (c) rubber (d) steel
  28. 28.Which of these needs a waterproof material? (a) a magnifier lens (b) a skipping rope (c) a raincoat (d) a window pane
  29. 29.🧱 Which property matters most for an oven glove? (a) electrical conductor (b) waterproof (c) transparent (d) heat insulator
  30. 30.Which of these needs a transparent material? (a) a spectacle lens (b) the core of a wire (c) a car seat belt (d) a cooking pot handle
  31. 31.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
  32. 32.🧱 Is brass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  33. 33.Which of these needs an electrical conductor? (a) a roof sheet (b) an oven glove (c) a skipping rope (d) the core of a wire
  34. 34.True or false: a plug pin needs a waterproof material. (a) True (b) False
  35. 35.True or false: a car seat belt needs a flexible material. (a) False (b) True
  36. 36.Which of these needs a transparent material? (a) a plug pin (b) a roof sheet (c) a boat hull (d) a magnifier lens
  37. 37.🧱 Which property matters most for a magnifier lens? (a) waterproof (b) electrical conductor (c) heat insulator (d) transparent
  38. 38.Which of these needs a flexible material? (a) a skipping rope (b) an umbrella cover (c) a roof sheet (d) a water tank
  39. 39.🔍 Which is the odd one out? (a) brass (b) rubber (c) cotton cloth (d) clay pottery
  40. 40.🧱 Is glass an electrical conductor or an insulator? (a) a conductor (b) an insulator

Answer key

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

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