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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 851 · 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 transparent material? (a) a cooking pot handle (b) a switch contact (c) a spectacle lens (d) a car seat belt
  2. 2.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  3. 3.Which of these needs a waterproof material? (a) a yoga mat (b) a water tank (c) a magnifier lens (d) a skipping rope
  4. 4.🔍 Which is the odd one out? (a) cotton cloth (b) dry wood (c) graphite (d) plastic
  5. 5.🧱 Which property matters most for a cooking pot handle? (a) transparent (b) heat insulator (c) waterproof (d) electrical conductor
  6. 6.True or false: an umbrella cover needs a flexible material. (a) False (b) True
  7. 7.🔍 Which is the odd one out? (a) rubber (b) cotton cloth (c) steel (d) glass
  8. 8.🧱 Which material is best for the core of an electric wire? (a) glass (b) copper (c) wood (d) rubber
  9. 9.🧱 Which material is best for a raincoat? (a) plastic-coated cloth (b) cotton wool (c) cardboard (d) paper
  10. 10.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
  11. 11.True or false: a car seat belt needs a waterproof material. (a) True (b) False
  12. 12.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  13. 13.Which of these needs a flexible material? (a) an oven glove (b) a tea flask lining (c) a switch contact (d) a skipping rope
  14. 14.🔍 Which is the odd one out? (a) plastic (b) rubber (c) aluminium (d) dry wood
  15. 15.🧱 Is cotton cloth an electrical conductor or an insulator? (a) an insulator (b) a conductor
  16. 16.🔍 Which is the odd one out? (a) clay pottery (b) graphite (c) brass (d) copper
  17. 17.🔍 Which is the odd one out? (a) aluminium (b) graphite (c) cotton cloth (d) copper
  18. 18.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
  19. 19.🧱 Which property matters most for a car seat belt? (a) waterproof (b) flexible (c) transparent (d) heat insulator
  20. 20.Which of these needs a waterproof material? (a) an umbrella cover (b) a window pane (c) a skipping rope (d) an oven glove
  21. 21.🧱 Which property matters most for a plug pin? (a) transparent (b) waterproof (c) electrical conductor (d) flexible
  22. 22.🧱 Which material is best for the bars inside concrete? (a) glass (b) plastic (c) rubber (d) steel
  23. 23.Which of these needs a heat insulator? (a) a plug pin (b) a cooking pot handle (c) a water tank (d) a hair band
  24. 24.Which of these needs a waterproof material? (a) a skipping rope (b) a window pane (c) a raincoat (d) a tea flask lining
  25. 25.True or false: a water tank needs a waterproof material. (a) False (b) True
  26. 26.🧱 Which property matters most for a switch contact? (a) heat insulator (b) electrical conductor (c) flexible (d) waterproof
  27. 27.🧱 Which property matters most for a hair band? (a) electrical conductor (b) transparent (c) flexible (d) waterproof
  28. 28.True or false: a spectacle lens needs a waterproof material. (a) False (b) True
  29. 29.Which of these needs an electrical conductor? (a) a window pane (b) the core of a wire (c) an oven glove (d) an umbrella cover
  30. 30.True or false: a skipping rope needs a flexible material. (a) True (b) False
  31. 31.True or false: a yoga mat needs an electrical conductor. (a) True (b) False
  32. 32.🧱 Which property matters most for the core of a wire? (a) waterproof (b) heat insulator (c) flexible (d) electrical conductor
  33. 33.True or false: an oven glove needs a transparent material. (a) False (b) True
  34. 34.🧱 Which material is best for a window pane? (a) steel (b) brick (c) wood (d) glass
  35. 35.Which of these needs a heat insulator? (a) a tea flask lining (b) a roof sheet (c) a spectacle lens (d) a skipping rope
  36. 36.🧱 Which property matters most for an oven glove? (a) waterproof (b) electrical conductor (c) transparent (d) heat insulator
  37. 37.🔍 Which is the odd one out? (a) dry wood (b) copper (c) rubber (d) glass
  38. 38.Which of these needs a waterproof material? (a) a roof sheet (b) a skipping rope (c) a yoga mat (d) a window pane
  39. 39.🔍 Which is the odd one out? (a) copper (b) iron (c) steel (d) dry wood
  40. 40.🧱 Is rubber an electrical conductor or an insulator? (a) a conductor (b) an insulator

Answer key

  1. a spectacle lens
  2. a conductor
  3. a water tank
  4. graphite
  5. heat insulator
  6. False
  7. steel
  8. copper
  9. plastic-coated cloth
  10. a conductor
  11. False
  12. a conductor
  13. a skipping rope
  14. aluminium
  15. an insulator
  16. clay pottery
  17. cotton cloth
  18. an insulator
  19. flexible
  20. an umbrella cover
  21. electrical conductor
  22. steel
  23. a cooking pot handle
  24. a raincoat
  25. True
  26. electrical conductor
  27. flexible
  28. False
  29. the core of a wire
  30. True
  31. False
  32. electrical conductor
  33. False
  34. glass
  35. a tea flask lining
  36. heat insulator
  37. copper
  38. a roof sheet
  39. dry wood
  40. an insulator

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