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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 783 · 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 dry wood an electrical conductor or an insulator? (a) a conductor (b) an insulator
  2. 2.🧱 Which property matters most for a spectacle lens? (a) flexible (b) waterproof (c) heat insulator (d) transparent
  3. 3.True or false: a yoga mat needs a heat insulator. (a) True (b) False
  4. 4.🧱 Which property matters most for a window pane? (a) flexible (b) waterproof (c) heat insulator (d) transparent
  5. 5.True or false: a skipping rope needs a flexible material. (a) False (b) True
  6. 6.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
  7. 7.🧱 Which material is best for a window pane? (a) steel (b) glass (c) brick (d) wood
  8. 8.🧱 Which material is best for the bars inside concrete? (a) steel (b) rubber (c) plastic (d) glass
  9. 9.🔍 Which is the odd one out? (a) clay pottery (b) cotton cloth (c) glass (d) brass
  10. 10.Which of these needs a waterproof material? (a) a yoga mat (b) a window pane (c) a water tank (d) a spectacle lens
  11. 11.🧱 Which property matters most for a roof sheet? (a) heat insulator (b) waterproof (c) flexible (d) electrical conductor
  12. 12.True or false: a boat hull needs a waterproof material. (a) False (b) True
  13. 13.🧱 Which property matters most for a boat hull? (a) waterproof (b) heat insulator (c) transparent (d) electrical conductor
  14. 14.🔍 Which is the odd one out? (a) plastic (b) iron (c) aluminium (d) copper
  15. 15.True or false: a car seat belt needs a transparent material. (a) False (b) True
  16. 16.Which of these needs a transparent material? (a) a yoga mat (b) a hair band (c) an oven glove (d) a magnifier lens
  17. 17.🔍 Which is the odd one out? (a) iron (b) cotton cloth (c) steel (d) copper
  18. 18.🧱 Is steel an electrical conductor or an insulator? (a) a conductor (b) an insulator
  19. 19.Which of these needs a flexible material? (a) a tea flask lining (b) a spectacle lens (c) a car seat belt (d) a switch contact
  20. 20.🧱 Which property matters most for an umbrella cover? (a) waterproof (b) transparent (c) flexible (d) electrical conductor
  21. 21.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  22. 22.🧱 Is cotton cloth an electrical conductor or an insulator? (a) an insulator (b) a conductor
  23. 23.🧱 Which material is best for the core of an electric wire? (a) glass (b) copper (c) rubber (d) wood
  24. 24.🔍 Which is the odd one out? (a) steel (b) glass (c) dry wood (d) plastic
  25. 25.🧱 Which property matters most for a car windscreen? (a) waterproof (b) electrical conductor (c) flexible (d) transparent
  26. 26.Which of these needs an electrical conductor? (a) a yoga mat (b) a raincoat (c) a plug pin (d) an umbrella cover
  27. 27.Which of these needs an electrical conductor? (a) a car seat belt (b) a roof sheet (c) a water tank (d) the core of a wire
  28. 28.Which of these needs a waterproof material? (a) a skipping rope (b) a spectacle lens (c) a magnifier lens (d) a raincoat
  29. 29.🔍 Which is the odd one out? (a) dry wood (b) cotton cloth (c) clay pottery (d) graphite
  30. 30.🧱 Which material is best for a raincoat? (a) paper (b) cardboard (c) plastic-coated cloth (d) cotton wool
  31. 31.True or false: a boat hull needs an electrical conductor. (a) True (b) False
  32. 32.🔍 Which is the odd one out? (a) steel (b) glass (c) graphite (d) brass
  33. 33.Which of these needs a transparent material? (a) a car windscreen (b) the core of a wire (c) a raincoat (d) a switch contact
  34. 34.🧱 Which property matters most for a water tank? (a) waterproof (b) flexible (c) electrical conductor (d) transparent
  35. 35.🧱 Which property matters most for a magnifier lens? (a) waterproof (b) electrical conductor (c) flexible (d) transparent
  36. 36.🔍 Which is the odd one out? (a) aluminium (b) dry wood (c) plastic (d) rubber
  37. 37.🔍 Which is the odd one out? (a) cotton cloth (b) rubber (c) plastic (d) copper
  38. 38.True or false: a switch contact needs an electrical conductor. (a) True (b) False
  39. 39.True or false: a roof sheet needs a waterproof material. (a) False (b) True
  40. 40.Which of these needs a waterproof material? (a) a spectacle lens (b) a cooking pot handle (c) a skipping rope (d) a boat hull

Answer key

  1. an insulator
  2. transparent
  3. False
  4. transparent
  5. True
  6. a conductor
  7. glass
  8. steel
  9. brass
  10. a water tank
  11. waterproof
  12. True
  13. waterproof
  14. plastic
  15. False
  16. a magnifier lens
  17. cotton cloth
  18. a conductor
  19. a car seat belt
  20. waterproof
  21. a conductor
  22. an insulator
  23. copper
  24. steel
  25. transparent
  26. a plug pin
  27. the core of a wire
  28. a raincoat
  29. graphite
  30. plastic-coated cloth
  31. False
  32. glass
  33. a car windscreen
  34. waterproof
  35. transparent
  36. aluminium
  37. copper
  38. True
  39. True
  40. a boat hull

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