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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 759 · 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.True or false: a plug pin needs an electrical conductor. (a) False (b) True
  2. 2.🧱 Is copper an electrical conductor or an insulator? (a) a conductor (b) an insulator
  3. 3.🧱 Which material is best for a window pane? (a) steel (b) brick (c) glass (d) wood
  4. 4.🔍 Which is the odd one out? (a) rubber (b) graphite (c) aluminium (d) iron
  5. 5.🧱 Which material is best for a raincoat? (a) paper (b) plastic-coated cloth (c) cardboard (d) cotton wool
  6. 6.True or false: a magnifier lens needs a waterproof material. (a) False (b) True
  7. 7.True or false: a spectacle lens needs a transparent material. (a) False (b) True
  8. 8.True or false: a magnifier lens needs a transparent material. (a) False (b) True
  9. 9.🔍 Which is the odd one out? (a) rubber (b) clay pottery (c) glass (d) copper
  10. 10.🧱 Which property matters most for an umbrella cover? (a) waterproof (b) transparent (c) flexible (d) heat insulator
  11. 11.🧱 Is graphite an electrical conductor or an insulator? (a) a conductor (b) an insulator
  12. 12.True or false: a yoga mat needs a flexible material. (a) True (b) False
  13. 13.🔍 Which is the odd one out? (a) rubber (b) cotton cloth (c) graphite (d) glass
  14. 14.True or false: a boat hull needs a flexible material. (a) True (b) False
  15. 15.🧱 Which property matters most for a car seat belt? (a) waterproof (b) transparent (c) flexible (d) heat insulator
  16. 16.True or false: a boat hull needs an electrical conductor. (a) False (b) True
  17. 17.🧱 Which property matters most for a yoga mat? (a) heat insulator (b) electrical conductor (c) flexible (d) transparent
  18. 18.🧱 Is brass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  19. 19.True or false: a car windscreen needs a transparent material. (a) True (b) False
  20. 20.🧱 Which material is best for the bars inside concrete? (a) glass (b) rubber (c) steel (d) plastic
  21. 21.Which of these needs a transparent material? (a) a spectacle lens (b) a raincoat (c) an umbrella cover (d) a skipping rope
  22. 22.True or false: a skipping rope needs a flexible material. (a) False (b) True
  23. 23.🧱 Which material is best for a cooking pot handle? (a) iron (b) copper (c) wood or plastic (d) aluminium
  24. 24.True or false: an umbrella cover needs a waterproof material. (a) True (b) False
  25. 25.🔍 Which is the odd one out? (a) steel (b) aluminium (c) graphite (d) clay pottery
  26. 26.🔍 Which is the odd one out? (a) dry wood (b) glass (c) brass (d) plastic
  27. 27.Which of these needs a heat insulator? (a) a magnifier lens (b) a tea flask lining (c) an umbrella cover (d) a yoga mat
  28. 28.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
  29. 29.🧱 Is clay pottery an electrical conductor or an insulator? (a) a conductor (b) an insulator
  30. 30.Which of these needs a heat insulator? (a) a yoga mat (b) a raincoat (c) an oven glove (d) a switch contact
  31. 31.🧱 Which property matters most for a switch contact? (a) heat insulator (b) transparent (c) electrical conductor (d) waterproof
  32. 32.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  33. 33.🧱 Is rubber an electrical conductor or an insulator? (a) an insulator (b) a conductor
  34. 34.True or false: a window pane needs an electrical conductor. (a) True (b) False
  35. 35.🧱 Which property matters most for a plug pin? (a) electrical conductor (b) transparent (c) flexible (d) waterproof
  36. 36.True or false: a tea flask lining needs a transparent material. (a) False (b) True
  37. 37.🧱 Which property matters most for a car windscreen? (a) waterproof (b) electrical conductor (c) transparent (d) heat insulator
  38. 38.🧱 Which property matters most for a magnifier lens? (a) flexible (b) electrical conductor (c) waterproof (d) transparent
  39. 39.🧱 Is plastic an electrical conductor or an insulator? (a) an insulator (b) a conductor
  40. 40.Which of these needs an electrical conductor? (a) a hair band (b) a yoga mat (c) the core of a wire (d) a car windscreen

Answer key

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

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