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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 124 · 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) clay pottery (b) iron (c) steel (d) graphite
  2. 2.🧱 Is glass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  3. 3.🔍 Which is the odd one out? (a) cotton cloth (b) iron (c) clay pottery (d) dry wood
  4. 4.True or false: a magnifier lens needs a transparent material. (a) False (b) True
  5. 5.True or false: an oven glove needs a waterproof material. (a) True (b) False
  6. 6.Which of these needs a transparent material? (a) a window pane (b) a yoga mat (c) a roof sheet (d) an umbrella cover
  7. 7.🧱 Which property matters most for a spectacle lens? (a) electrical conductor (b) flexible (c) waterproof (d) transparent
  8. 8.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  9. 9.🧱 Which property matters most for an oven glove? (a) heat insulator (b) flexible (c) transparent (d) electrical conductor
  10. 10.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
  11. 11.🧱 Is graphite an electrical conductor or an insulator? (a) a conductor (b) an insulator
  12. 12.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
  13. 13.Which of these needs an electrical conductor? (a) a yoga mat (b) a cooking pot handle (c) a window pane (d) a plug pin
  14. 14.🧱 Which property matters most for a switch contact? (a) heat insulator (b) waterproof (c) transparent (d) electrical conductor
  15. 15.🧱 Which property matters most for an umbrella cover? (a) electrical conductor (b) transparent (c) waterproof (d) flexible
  16. 16.🧱 Is clay pottery an electrical conductor or an insulator? (a) an insulator (b) a conductor
  17. 17.🧱 Is dry wood an electrical conductor or an insulator? (a) an insulator (b) a conductor
  18. 18.🧱 Which property matters most for a window pane? (a) flexible (b) transparent (c) heat insulator (d) waterproof
  19. 19.🧱 Is cotton cloth an electrical conductor or an insulator? (a) a conductor (b) an insulator
  20. 20.🧱 Which property matters most for a tea flask lining? (a) transparent (b) electrical conductor (c) heat insulator (d) flexible
  21. 21.True or false: an umbrella cover needs an electrical conductor. (a) True (b) False
  22. 22.🧱 Which material is best for a window pane? (a) wood (b) brick (c) glass (d) steel
  23. 23.🔍 Which is the odd one out? (a) iron (b) graphite (c) rubber (d) copper
  24. 24.Which of these needs a transparent material? (a) the core of a wire (b) a spectacle lens (c) a car seat belt (d) a skipping rope
  25. 25.True or false: a raincoat needs a waterproof material. (a) False (b) True
  26. 26.🔍 Which is the odd one out? (a) copper (b) steel (c) cotton cloth (d) iron
  27. 27.True or false: a roof sheet needs a waterproof material. (a) True (b) False
  28. 28.🧱 Is rubber an electrical conductor or an insulator? (a) a conductor (b) an insulator
  29. 29.True or false: a car windscreen needs a transparent material. (a) True (b) False
  30. 30.Which of these needs a flexible material? (a) the core of a wire (b) a boat hull (c) a hair band (d) a raincoat
  31. 31.🧱 Which material is best for a raincoat? (a) plastic-coated cloth (b) cotton wool (c) cardboard (d) paper
  32. 32.🧱 Which material is best for a cooking pot handle? (a) iron (b) aluminium (c) wood or plastic (d) copper
  33. 33.🧱 Which property matters most for the core of a wire? (a) waterproof (b) flexible (c) electrical conductor (d) transparent
  34. 34.Which of these needs a flexible material? (a) a car seat belt (b) an oven glove (c) the core of a wire (d) a water tank
  35. 35.True or false: a yoga mat needs a waterproof material. (a) False (b) True
  36. 36.True or false: a car seat belt needs a flexible material. (a) True (b) False
  37. 37.True or false: a hair band needs a flexible material. (a) True (b) False
  38. 38.🧱 Which property matters most for a car windscreen? (a) transparent (b) electrical conductor (c) heat insulator (d) flexible
  39. 39.True or false: a raincoat needs a flexible material. (a) False (b) True
  40. 40.True or false: a raincoat needs a heat insulator. (a) False (b) True

Answer key

  1. clay pottery
  2. an insulator
  3. iron
  4. True
  5. False
  6. a window pane
  7. transparent
  8. a conductor
  9. heat insulator
  10. a conductor
  11. a conductor
  12. an insulator
  13. a plug pin
  14. electrical conductor
  15. waterproof
  16. an insulator
  17. an insulator
  18. transparent
  19. an insulator
  20. heat insulator
  21. False
  22. glass
  23. rubber
  24. a spectacle lens
  25. True
  26. cotton cloth
  27. True
  28. an insulator
  29. True
  30. a hair band
  31. plastic-coated cloth
  32. wood or plastic
  33. electrical conductor
  34. a car seat belt
  35. False
  36. True
  37. True
  38. transparent
  39. False
  40. False

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