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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 840 · 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) glass (b) aluminium (c) steel (d) graphite
  2. 2.🔍 Which is the odd one out? (a) brass (b) dry wood (c) graphite (d) aluminium
  3. 3.🧱 Which material is best for a window pane? (a) wood (b) steel (c) brick (d) glass
  4. 4.🧱 Is plastic an electrical conductor or an insulator? (a) an insulator (b) a conductor
  5. 5.True or false: a yoga mat needs a waterproof material. (a) True (b) False
  6. 6.Which of these needs a waterproof material? (a) a yoga mat (b) a car seat belt (c) a roof sheet (d) a cooking pot handle
  7. 7.🧱 Which property matters most for a boat hull? (a) transparent (b) waterproof (c) heat insulator (d) electrical conductor
  8. 8.🧱 Which property matters most for a switch contact? (a) heat insulator (b) electrical conductor (c) transparent (d) waterproof
  9. 9.Which of these needs an electrical conductor? (a) the core of a wire (b) a raincoat (c) a car windscreen (d) an umbrella cover
  10. 10.🧱 Which property matters most for a window pane? (a) waterproof (b) electrical conductor (c) transparent (d) flexible
  11. 11.🧱 Which property matters most for a car seat belt? (a) heat insulator (b) flexible (c) electrical conductor (d) waterproof
  12. 12.🧱 Which property matters most for the core of a wire? (a) transparent (b) waterproof (c) flexible (d) electrical conductor
  13. 13.🧱 Which property matters most for a magnifier lens? (a) transparent (b) heat insulator (c) waterproof (d) electrical conductor
  14. 14.🧱 Which material is best for the bars inside concrete? (a) glass (b) steel (c) rubber (d) plastic
  15. 15.Which of these needs a waterproof material? (a) a water tank (b) a window pane (c) a car windscreen (d) a tea flask lining
  16. 16.True or false: a boat hull needs an electrical conductor. (a) True (b) False
  17. 17.Which of these needs a heat insulator? (a) an oven glove (b) an umbrella cover (c) a car windscreen (d) a boat hull
  18. 18.🧱 Is brass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  19. 19.Which of these needs a transparent material? (a) an oven glove (b) a switch contact (c) a spectacle lens (d) a hair band
  20. 20.True or false: a spectacle lens needs a transparent material. (a) False (b) True
  21. 21.Which of these needs a transparent material? (a) a magnifier lens (b) an umbrella cover (c) a boat hull (d) a roof sheet
  22. 22.Which of these needs a flexible material? (a) a switch contact (b) a window pane (c) a water tank (d) a yoga mat
  23. 23.🧱 Is rubber an electrical conductor or an insulator? (a) a conductor (b) an insulator
  24. 24.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
  25. 25.🔍 Which is the odd one out? (a) glass (b) dry wood (c) graphite (d) rubber
  26. 26.🧱 Which material is best for a cooking pot handle? (a) wood or plastic (b) iron (c) copper (d) aluminium
  27. 27.🧱 Is clay pottery an electrical conductor or an insulator? (a) a conductor (b) an insulator
  28. 28.True or false: a window pane needs a transparent material. (a) False (b) True
  29. 29.🧱 Which property matters most for a tea flask lining? (a) heat insulator (b) waterproof (c) flexible (d) transparent
  30. 30.🧱 Is glass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  31. 31.🧱 Which property matters most for a water tank? (a) flexible (b) heat insulator (c) waterproof (d) electrical conductor
  32. 32.🧱 Which material is best for a raincoat? (a) plastic-coated cloth (b) cardboard (c) cotton wool (d) paper
  33. 33.True or false: a car windscreen needs a transparent material. (a) False (b) True
  34. 34.🧱 Which property matters most for a plug pin? (a) heat insulator (b) transparent (c) electrical conductor (d) flexible
  35. 35.🔍 Which is the odd one out? (a) graphite (b) copper (c) cotton cloth (d) brass
  36. 36.🧱 Which property matters most for a skipping rope? (a) transparent (b) electrical conductor (c) flexible (d) waterproof
  37. 37.🧱 Which property matters most for a car windscreen? (a) waterproof (b) electrical conductor (c) heat insulator (d) transparent
  38. 38.Which of these needs a waterproof material? (a) a yoga mat (b) a magnifier lens (c) a car windscreen (d) a boat hull
  39. 39.🧱 Which property matters most for a raincoat? (a) transparent (b) heat insulator (c) flexible (d) waterproof
  40. 40.🧱 Is dry wood an electrical conductor or an insulator? (a) an insulator (b) a conductor

Answer key

  1. glass
  2. dry wood
  3. glass
  4. an insulator
  5. False
  6. a roof sheet
  7. waterproof
  8. electrical conductor
  9. the core of a wire
  10. transparent
  11. flexible
  12. electrical conductor
  13. transparent
  14. steel
  15. a water tank
  16. False
  17. an oven glove
  18. a conductor
  19. a spectacle lens
  20. True
  21. a magnifier lens
  22. a yoga mat
  23. an insulator
  24. a conductor
  25. graphite
  26. wood or plastic
  27. an insulator
  28. True
  29. heat insulator
  30. an insulator
  31. waterproof
  32. plastic-coated cloth
  33. True
  34. electrical conductor
  35. cotton cloth
  36. flexible
  37. transparent
  38. a boat hull
  39. waterproof
  40. an insulator

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