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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 402 · 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.True or false: a window pane needs a transparent material. (a) False (b) True
  2. 2.🧱 Is glass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  3. 3.True or false: a tea flask lining needs a waterproof material. (a) True (b) False
  4. 4.🔍 Which is the odd one out? (a) clay pottery (b) rubber (c) steel (d) plastic
  5. 5.🧱 Which material is best for a raincoat? (a) paper (b) cardboard (c) plastic-coated cloth (d) cotton wool
  6. 6.Which of these needs a flexible material? (a) a yoga mat (b) an umbrella cover (c) a tea flask lining (d) a window pane
  7. 7.Which of these needs a waterproof material? (a) a skipping rope (b) a yoga mat (c) the core of a wire (d) a water tank
  8. 8.🧱 Is rubber an electrical conductor or an insulator? (a) an insulator (b) a conductor
  9. 9.🧱 Which property matters most for a water tank? (a) transparent (b) flexible (c) heat insulator (d) waterproof
  10. 10.🧱 Is iron an electrical conductor or an insulator? (a) a conductor (b) an insulator
  11. 11.🧱 Is cotton cloth an electrical conductor or an insulator? (a) a conductor (b) an insulator
  12. 12.Which of these needs an electrical conductor? (a) a skipping rope (b) a raincoat (c) a hair band (d) the core of a wire
  13. 13.Which of these needs a waterproof material? (a) an oven glove (b) a hair band (c) an umbrella cover (d) a yoga mat
  14. 14.True or false: a raincoat needs a waterproof material. (a) False (b) True
  15. 15.🧱 Which material is best for the core of an electric wire? (a) copper (b) glass (c) rubber (d) wood
  16. 16.🔍 Which is the odd one out? (a) aluminium (b) iron (c) dry wood (d) copper
  17. 17.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  18. 18.🔍 Which is the odd one out? (a) plastic (b) copper (c) graphite (d) aluminium
  19. 19.True or false: a plug pin needs a waterproof material. (a) False (b) True
  20. 20.Which of these needs a heat insulator? (a) a magnifier lens (b) a raincoat (c) a hair band (d) an oven glove
  21. 21.🔍 Which is the odd one out? (a) steel (b) clay pottery (c) aluminium (d) graphite
  22. 22.🧱 Is brass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  23. 23.Which of these needs a transparent material? (a) an oven glove (b) a car seat belt (c) a skipping rope (d) a spectacle lens
  24. 24.🧱 Which property matters most for a car windscreen? (a) electrical conductor (b) waterproof (c) heat insulator (d) transparent
  25. 25.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  26. 26.🔍 Which is the odd one out? (a) copper (b) cotton cloth (c) rubber (d) glass
  27. 27.🧱 Which property matters most for a car seat belt? (a) waterproof (b) flexible (c) transparent (d) heat insulator
  28. 28.🔍 Which is the odd one out? (a) rubber (b) iron (c) plastic (d) dry wood
  29. 29.True or false: a boat hull needs a heat insulator. (a) False (b) True
  30. 30.🧱 Which property matters most for a raincoat? (a) transparent (b) waterproof (c) heat insulator (d) flexible
  31. 31.🧱 Which property matters most for a roof sheet? (a) transparent (b) electrical conductor (c) waterproof (d) flexible
  32. 32.🔍 Which is the odd one out? (a) iron (b) glass (c) steel (d) aluminium
  33. 33.True or false: the core of a wire needs a waterproof material. (a) False (b) True
  34. 34.Which of these needs a transparent material? (a) the core of a wire (b) a car seat belt (c) a roof sheet (d) a window pane
  35. 35.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
  36. 36.🧱 Which property matters most for a magnifier lens? (a) flexible (b) heat insulator (c) electrical conductor (d) transparent
  37. 37.Which of these needs a heat insulator? (a) a hair band (b) a cooking pot handle (c) a switch contact (d) a yoga mat
  38. 38.Which of these needs a flexible material? (a) a hair band (b) a cooking pot handle (c) a water tank (d) a magnifier lens
  39. 39.True or false: a window pane needs a heat insulator. (a) True (b) False
  40. 40.True or false: a window pane needs an electrical conductor. (a) True (b) False

Answer key

  1. True
  2. an insulator
  3. False
  4. steel
  5. plastic-coated cloth
  6. a yoga mat
  7. a water tank
  8. an insulator
  9. waterproof
  10. a conductor
  11. an insulator
  12. the core of a wire
  13. an umbrella cover
  14. True
  15. copper
  16. dry wood
  17. a conductor
  18. plastic
  19. False
  20. an oven glove
  21. clay pottery
  22. a conductor
  23. a spectacle lens
  24. transparent
  25. a conductor
  26. copper
  27. flexible
  28. iron
  29. False
  30. waterproof
  31. waterproof
  32. glass
  33. False
  34. a window pane
  35. an insulator
  36. transparent
  37. a cooking pot handle
  38. a hair band
  39. False
  40. False

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