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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 748 · 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 property matters most for a skipping rope? (a) waterproof (b) electrical conductor (c) heat insulator (d) flexible
  2. 2.True or false: a skipping rope needs a flexible material. (a) False (b) True
  3. 3.🔍 Which is the odd one out? (a) dry wood (b) glass (c) plastic (d) brass
  4. 4.🧱 Which property matters most for a switch contact? (a) transparent (b) flexible (c) waterproof (d) electrical conductor
  5. 5.🧱 Is iron an electrical conductor or an insulator? (a) a conductor (b) an insulator
  6. 6.True or false: a skipping rope needs a waterproof material. (a) False (b) True
  7. 7.Which of these needs a waterproof material? (a) a yoga mat (b) an oven glove (c) a car windscreen (d) an umbrella cover
  8. 8.True or false: a tea flask lining needs a waterproof material. (a) False (b) True
  9. 9.🧱 Is brass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  10. 10.Which of these needs an electrical conductor? (a) a spectacle lens (b) a plug pin (c) an oven glove (d) a boat hull
  11. 11.🧱 Is glass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  12. 12.Which of these needs a waterproof material? (a) a water tank (b) a yoga mat (c) a plug pin (d) a switch contact
  13. 13.Which of these needs a heat insulator? (a) a skipping rope (b) a spectacle lens (c) a cooking pot handle (d) a car windscreen
  14. 14.🔍 Which is the odd one out? (a) graphite (b) brass (c) steel (d) rubber
  15. 15.🧱 Is graphite an electrical conductor or an insulator? (a) a conductor (b) an insulator
  16. 16.🧱 Which material is best for a raincoat? (a) cotton wool (b) cardboard (c) plastic-coated cloth (d) paper
  17. 17.True or false: a magnifier lens needs an electrical conductor. (a) True (b) False
  18. 18.🧱 Which material is best for a cooking pot handle? (a) wood or plastic (b) copper (c) iron (d) aluminium
  19. 19.🧱 Which property matters most for a roof sheet? (a) waterproof (b) electrical conductor (c) heat insulator (d) flexible
  20. 20.🧱 Is aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
  21. 21.🧱 Which property matters most for a boat hull? (a) heat insulator (b) waterproof (c) transparent (d) electrical conductor
  22. 22.🧱 Which property matters most for a tea flask lining? (a) electrical conductor (b) heat insulator (c) waterproof (d) transparent
  23. 23.🧱 Which material is best for the core of an electric wire? (a) rubber (b) wood (c) glass (d) copper
  24. 24.🧱 Is clay pottery an electrical conductor or an insulator? (a) a conductor (b) an insulator
  25. 25.True or false: a boat hull needs a transparent material. (a) False (b) True
  26. 26.True or false: a tea flask lining needs a flexible material. (a) False (b) True
  27. 27.Which of these needs an electrical conductor? (a) a raincoat (b) an umbrella cover (c) a skipping rope (d) a switch contact
  28. 28.🧱 Which property matters most for a car seat belt? (a) flexible (b) waterproof (c) transparent (d) electrical conductor
  29. 29.🧱 Which property matters most for a cooking pot handle? (a) flexible (b) waterproof (c) electrical conductor (d) heat insulator
  30. 30.🧱 Is cotton cloth an electrical conductor or an insulator? (a) a conductor (b) an insulator
  31. 31.🧱 Is steel an electrical conductor or an insulator? (a) a conductor (b) an insulator
  32. 32.True or false: a window pane needs an electrical conductor. (a) True (b) False
  33. 33.True or false: a car windscreen needs a flexible material. (a) True (b) False
  34. 34.Which of these needs a heat insulator? (a) a boat hull (b) a yoga mat (c) an oven glove (d) the core of a wire
  35. 35.🧱 Which property matters most for a car windscreen? (a) waterproof (b) flexible (c) transparent (d) electrical conductor
  36. 36.🔍 Which is the odd one out? (a) steel (b) plastic (c) iron (d) aluminium
  37. 37.True or false: a water tank needs a transparent material. (a) True (b) False
  38. 38.Which of these needs a transparent material? (a) a roof sheet (b) a car windscreen (c) the core of a wire (d) a hair band
  39. 39.🔍 Which is the odd one out? (a) clay pottery (b) rubber (c) copper (d) plastic
  40. 40.🔍 Which is the odd one out? (a) dry wood (b) aluminium (c) steel (d) graphite

Answer key

  1. flexible
  2. True
  3. brass
  4. electrical conductor
  5. a conductor
  6. False
  7. an umbrella cover
  8. False
  9. a conductor
  10. a plug pin
  11. an insulator
  12. a water tank
  13. a cooking pot handle
  14. rubber
  15. a conductor
  16. plastic-coated cloth
  17. False
  18. wood or plastic
  19. waterproof
  20. a conductor
  21. waterproof
  22. heat insulator
  23. copper
  24. an insulator
  25. False
  26. False
  27. a switch contact
  28. flexible
  29. heat insulator
  30. an insulator
  31. a conductor
  32. False
  33. False
  34. an oven glove
  35. transparent
  36. plastic
  37. False
  38. a car windscreen
  39. copper
  40. dry wood

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