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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 687 · 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) rubber (b) graphite (c) copper (d) steel
  2. 2.🧱 Which material is best for the core of an electric wire? (a) rubber (b) wood (c) copper (d) glass
  3. 3.Which of these needs a transparent material? (a) a car seat belt (b) a roof sheet (c) a magnifier lens (d) a plug pin
  4. 4.🧱 Which property matters most for a boat hull? (a) heat insulator (b) flexible (c) waterproof (d) electrical conductor
  5. 5.🧱 Which property matters most for a yoga mat? (a) heat insulator (b) transparent (c) waterproof (d) flexible
  6. 6.🧱 Which material is best for a raincoat? (a) plastic-coated cloth (b) cardboard (c) paper (d) cotton wool
  7. 7.🧱 Which property matters most for a car windscreen? (a) flexible (b) waterproof (c) transparent (d) heat insulator
  8. 8.🔍 Which is the odd one out? (a) brass (b) dry wood (c) copper (d) aluminium
  9. 9.True or false: a skipping rope needs a waterproof material. (a) False (b) True
  10. 10.Which of these needs an electrical conductor? (a) a hair band (b) the core of a wire (c) a raincoat (d) an umbrella cover
  11. 11.🧱 Which material is best for a window pane? (a) glass (b) brick (c) wood (d) steel
  12. 12.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  13. 13.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  14. 14.Which of these needs a flexible material? (a) a plug pin (b) an oven glove (c) a switch contact (d) a skipping rope
  15. 15.🧱 Which property matters most for a tea flask lining? (a) waterproof (b) flexible (c) electrical conductor (d) heat insulator
  16. 16.Which of these needs a waterproof material? (a) a car windscreen (b) a car seat belt (c) a yoga mat (d) a roof sheet
  17. 17.🧱 Is cotton cloth an electrical conductor or an insulator? (a) a conductor (b) an insulator
  18. 18.True or false: a cooking pot handle needs a heat insulator. (a) False (b) True
  19. 19.Which of these needs a transparent material? (a) a boat hull (b) a skipping rope (c) a spectacle lens (d) a plug pin
  20. 20.Which of these needs a heat insulator? (a) a car windscreen (b) a raincoat (c) a car seat belt (d) a tea flask lining
  21. 21.🔍 Which is the odd one out? (a) graphite (b) steel (c) clay pottery (d) aluminium
  22. 22.🧱 Which property matters most for the core of a wire? (a) electrical conductor (b) waterproof (c) transparent (d) heat insulator
  23. 23.True or false: a plug pin needs an electrical conductor. (a) True (b) False
  24. 24.True or false: a spectacle lens needs a transparent material. (a) True (b) False
  25. 25.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
  26. 26.Which of these needs a flexible material? (a) a car windscreen (b) a hair band (c) a raincoat (d) a cooking pot handle
  27. 27.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
  28. 28.🔍 Which is the odd one out? (a) rubber (b) glass (c) plastic (d) steel
  29. 29.🧱 Is rubber an electrical conductor or an insulator? (a) an insulator (b) a conductor
  30. 30.True or false: a switch contact needs an electrical conductor. (a) False (b) True
  31. 31.🔍 Which is the odd one out? (a) cotton cloth (b) glass (c) graphite (d) rubber
  32. 32.🧱 Which material is best for the bars inside concrete? (a) glass (b) plastic (c) steel (d) rubber
  33. 33.Which of these needs a waterproof material? (a) a boat hull (b) a skipping rope (c) a magnifier lens (d) a car seat belt
  34. 34.🧱 Which property matters most for an umbrella cover? (a) heat insulator (b) flexible (c) transparent (d) waterproof
  35. 35.🧱 Is brass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  36. 36.Which of these needs a transparent material? (a) a boat hull (b) a car seat belt (c) a car windscreen (d) a tea flask lining
  37. 37.🧱 Which property matters most for a roof sheet? (a) heat insulator (b) waterproof (c) transparent (d) electrical conductor
  38. 38.True or false: an umbrella cover needs a waterproof material. (a) False (b) True
  39. 39.🧱 Which property matters most for a water tank? (a) electrical conductor (b) transparent (c) flexible (d) waterproof
  40. 40.True or false: an oven glove needs an electrical conductor. (a) False (b) True

Answer key

  1. rubber
  2. copper
  3. a magnifier lens
  4. waterproof
  5. flexible
  6. plastic-coated cloth
  7. transparent
  8. dry wood
  9. False
  10. the core of a wire
  11. glass
  12. a conductor
  13. a conductor
  14. a skipping rope
  15. heat insulator
  16. a roof sheet
  17. an insulator
  18. True
  19. a spectacle lens
  20. a tea flask lining
  21. clay pottery
  22. electrical conductor
  23. True
  24. True
  25. an insulator
  26. a hair band
  27. a conductor
  28. steel
  29. an insulator
  30. True
  31. graphite
  32. steel
  33. a boat hull
  34. waterproof
  35. a conductor
  36. a car windscreen
  37. waterproof
  38. True
  39. waterproof
  40. False

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