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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 386 · 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) an umbrella cover (b) a water tank (c) a tea flask lining (d) a magnifier lens
  2. 2.🧱 Is dry wood an electrical conductor or an insulator? (a) an insulator (b) a conductor
  3. 3.True or false: a yoga mat needs a waterproof material. (a) True (b) False
  4. 4.🧱 Which material is best for a raincoat? (a) paper (b) cardboard (c) cotton wool (d) plastic-coated cloth
  5. 5.🧱 Which property matters most for a raincoat? (a) transparent (b) waterproof (c) heat insulator (d) electrical conductor
  6. 6.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  7. 7.🔍 Which is the odd one out? (a) copper (b) iron (c) glass (d) brass
  8. 8.Which of these needs a transparent material? (a) a boat hull (b) a yoga mat (c) a hair band (d) a car windscreen
  9. 9.🧱 Which material is best for the core of an electric wire? (a) wood (b) rubber (c) copper (d) glass
  10. 10.🔍 Which is the odd one out? (a) cotton cloth (b) steel (c) clay pottery (d) glass
  11. 11.True or false: a plug pin needs a flexible material. (a) True (b) False
  12. 12.Which of these needs a waterproof material? (a) a plug pin (b) a raincoat (c) an oven glove (d) a car seat belt
  13. 13.🧱 Which property matters most for a car windscreen? (a) transparent (b) heat insulator (c) flexible (d) electrical conductor
  14. 14.🧱 Which property matters most for a switch contact? (a) flexible (b) electrical conductor (c) heat insulator (d) waterproof
  15. 15.🔍 Which is the odd one out? (a) clay pottery (b) aluminium (c) dry wood (d) plastic
  16. 16.Which of these needs a transparent material? (a) a switch contact (b) a spectacle lens (c) a raincoat (d) a car seat belt
  17. 17.True or false: a roof sheet needs a waterproof material. (a) False (b) True
  18. 18.🧱 Which property matters most for a spectacle lens? (a) electrical conductor (b) transparent (c) waterproof (d) heat insulator
  19. 19.🧱 Which property matters most for a yoga mat? (a) electrical conductor (b) flexible (c) waterproof (d) transparent
  20. 20.🧱 Which property matters most for a boat hull? (a) waterproof (b) electrical conductor (c) transparent (d) flexible
  21. 21.Which of these needs an electrical conductor? (a) a spectacle lens (b) a boat hull (c) a plug pin (d) a skipping rope
  22. 22.🧱 Which property matters most for a water tank? (a) flexible (b) electrical conductor (c) waterproof (d) heat insulator
  23. 23.🔍 Which is the odd one out? (a) copper (b) graphite (c) cotton cloth (d) steel
  24. 24.True or false: a boat hull needs an electrical conductor. (a) True (b) False
  25. 25.🧱 Which material is best for the bars inside concrete? (a) rubber (b) plastic (c) glass (d) steel
  26. 26.🧱 Which property matters most for a roof sheet? (a) transparent (b) waterproof (c) heat insulator (d) flexible
  27. 27.🧱 Is brass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  28. 28.True or false: an umbrella cover needs a waterproof material. (a) True (b) False
  29. 29.🧱 Which property matters most for a window pane? (a) waterproof (b) flexible (c) heat insulator (d) transparent
  30. 30.🔍 Which is the odd one out? (a) clay pottery (b) cotton cloth (c) brass (d) glass
  31. 31.True or false: a car windscreen needs a waterproof material. (a) False (b) True
  32. 32.Which of these needs an electrical conductor? (a) a car seat belt (b) a spectacle lens (c) a switch contact (d) a boat hull
  33. 33.🧱 Is aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
  34. 34.🧱 Which property matters most for a magnifier lens? (a) flexible (b) electrical conductor (c) transparent (d) waterproof
  35. 35.🔍 Which is the odd one out? (a) dry wood (b) aluminium (c) iron (d) copper
  36. 36.Which of these needs a heat insulator? (a) a car seat belt (b) the core of a wire (c) an oven glove (d) a yoga mat
  37. 37.Which of these needs a flexible material? (a) a skipping rope (b) a cooking pot handle (c) a tea flask lining (d) a boat hull
  38. 38.Which of these needs a waterproof material? (a) a tea flask lining (b) a switch contact (c) a window pane (d) a boat hull
  39. 39.True or false: a hair band needs a transparent material. (a) True (b) False
  40. 40.Which of these needs a waterproof material? (a) a hair band (b) a roof sheet (c) the core of a wire (d) a plug pin

Answer key

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

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