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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 270 · 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 an electrical conductor? (a) a window pane (b) a yoga mat (c) the core of a wire (d) a car seat belt
  2. 2.True or false: a car seat belt needs a transparent material. (a) True (b) False
  3. 3.🧱 Which property matters most for a hair band? (a) waterproof (b) heat insulator (c) flexible (d) transparent
  4. 4.🧱 Which property matters most for the core of a wire? (a) electrical conductor (b) heat insulator (c) flexible (d) transparent
  5. 5.🧱 Which property matters most for a roof sheet? (a) flexible (b) electrical conductor (c) waterproof (d) transparent
  6. 6.🔍 Which is the odd one out? (a) glass (b) clay pottery (c) iron (d) cotton cloth
  7. 7.🧱 Which property matters most for a boat hull? (a) heat insulator (b) waterproof (c) electrical conductor (d) transparent
  8. 8.🔍 Which is the odd one out? (a) graphite (b) cotton cloth (c) clay pottery (d) plastic
  9. 9.True or false: a roof sheet needs a flexible material. (a) False (b) True
  10. 10.Which of these needs a flexible material? (a) a switch contact (b) a tea flask lining (c) a skipping rope (d) a raincoat
  11. 11.🧱 Which property matters most for a water tank? (a) flexible (b) heat insulator (c) electrical conductor (d) waterproof
  12. 12.Which of these needs a transparent material? (a) an umbrella cover (b) a spectacle lens (c) a skipping rope (d) a water tank
  13. 13.🧱 Is brass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  14. 14.🧱 Which property matters most for a raincoat? (a) waterproof (b) flexible (c) heat insulator (d) electrical conductor
  15. 15.Which of these needs a heat insulator? (a) a roof sheet (b) a car windscreen (c) a spectacle lens (d) an oven glove
  16. 16.🧱 Which material is best for the bars inside concrete? (a) glass (b) plastic (c) rubber (d) steel
  17. 17.🧱 Which property matters most for a magnifier lens? (a) heat insulator (b) transparent (c) waterproof (d) electrical conductor
  18. 18.Which of these needs an electrical conductor? (a) a magnifier lens (b) a cooking pot handle (c) a spectacle lens (d) a switch contact
  19. 19.🔍 Which is the odd one out? (a) aluminium (b) graphite (c) clay pottery (d) brass
  20. 20.🧱 Which material is best for the core of an electric wire? (a) glass (b) wood (c) copper (d) rubber
  21. 21.🧱 Is rubber an electrical conductor or an insulator? (a) an insulator (b) a conductor
  22. 22.Which of these needs a flexible material? (a) a spectacle lens (b) a yoga mat (c) a switch contact (d) a cooking pot handle
  23. 23.🔍 Which is the odd one out? (a) steel (b) dry wood (c) rubber (d) clay pottery
  24. 24.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
  25. 25.Which of these needs a heat insulator? (a) a cooking pot handle (b) a switch contact (c) the core of a wire (d) a car windscreen
  26. 26.🔍 Which is the odd one out? (a) aluminium (b) brass (c) rubber (d) graphite
  27. 27.🧱 Which property matters most for a yoga mat? (a) transparent (b) waterproof (c) heat insulator (d) flexible
  28. 28.True or false: the core of a wire needs an electrical conductor. (a) True (b) False
  29. 29.Which of these needs a flexible material? (a) a roof sheet (b) an oven glove (c) a car seat belt (d) a plug pin
  30. 30.True or false: a cooking pot handle needs a flexible material. (a) True (b) False
  31. 31.True or false: a spectacle lens needs an electrical conductor. (a) True (b) False
  32. 32.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
  33. 33.True or false: a raincoat needs a waterproof material. (a) False (b) True
  34. 34.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  35. 35.🔍 Which is the odd one out? (a) copper (b) graphite (c) dry wood (d) iron
  36. 36.🧱 Which property matters most for a car seat belt? (a) flexible (b) waterproof (c) heat insulator (d) transparent
  37. 37.🧱 Is glass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  38. 38.Which of these needs a transparent material? (a) a plug pin (b) an oven glove (c) a boat hull (d) a car windscreen
  39. 39.True or false: a magnifier lens needs an electrical conductor. (a) True (b) False
  40. 40.🧱 Which property matters most for a car windscreen? (a) heat insulator (b) flexible (c) transparent (d) waterproof

Answer key

  1. the core of a wire
  2. False
  3. flexible
  4. electrical conductor
  5. waterproof
  6. iron
  7. waterproof
  8. graphite
  9. False
  10. a skipping rope
  11. waterproof
  12. a spectacle lens
  13. a conductor
  14. waterproof
  15. an oven glove
  16. steel
  17. transparent
  18. a switch contact
  19. clay pottery
  20. copper
  21. an insulator
  22. a yoga mat
  23. steel
  24. a conductor
  25. a cooking pot handle
  26. rubber
  27. flexible
  28. True
  29. a car seat belt
  30. False
  31. False
  32. an insulator
  33. True
  34. a conductor
  35. dry wood
  36. flexible
  37. an insulator
  38. a car windscreen
  39. False
  40. transparent

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