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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 544 · 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 plug pin? (a) heat insulator (b) electrical conductor (c) transparent (d) waterproof
  2. 2.Which of these needs a flexible material? (a) a cooking pot handle (b) a boat hull (c) an oven glove (d) a car seat belt
  3. 3.True or false: a spectacle lens needs a transparent material. (a) True (b) False
  4. 4.🧱 Which material is best for the core of an electric wire? (a) copper (b) rubber (c) wood (d) glass
  5. 5.🔍 Which is the odd one out? (a) aluminium (b) brass (c) steel (d) clay pottery
  6. 6.🧱 Is brass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  7. 7.🧱 Which property matters most for a tea flask lining? (a) heat insulator (b) electrical conductor (c) flexible (d) waterproof
  8. 8.Which of these needs a transparent material? (a) a cooking pot handle (b) a raincoat (c) a magnifier lens (d) a car seat belt
  9. 9.True or false: a water tank needs a waterproof material. (a) False (b) True
  10. 10.Which of these needs a heat insulator? (a) a roof sheet (b) a plug pin (c) a tea flask lining (d) a water tank
  11. 11.Which of these needs a heat insulator? (a) an oven glove (b) a yoga mat (c) an umbrella cover (d) a window pane
  12. 12.🧱 Is glass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  13. 13.True or false: a car windscreen needs an electrical conductor. (a) False (b) True
  14. 14.🧱 Which property matters most for a roof sheet? (a) waterproof (b) transparent (c) flexible (d) electrical conductor
  15. 15.🧱 Which property matters most for a yoga mat? (a) waterproof (b) heat insulator (c) electrical conductor (d) flexible
  16. 16.🔍 Which is the odd one out? (a) brass (b) iron (c) graphite (d) rubber
  17. 17.🔍 Which is the odd one out? (a) rubber (b) dry wood (c) cotton cloth (d) brass
  18. 18.Which of these needs an electrical conductor? (a) a car seat belt (b) a switch contact (c) a car windscreen (d) a boat hull
  19. 19.Which of these needs a flexible material? (a) a car windscreen (b) a cooking pot handle (c) a window pane (d) a hair band
  20. 20.True or false: a magnifier lens needs a transparent material. (a) False (b) True
  21. 21.True or false: a skipping rope needs a flexible material. (a) True (b) False
  22. 22.🧱 Which material is best for the bars inside concrete? (a) glass (b) plastic (c) steel (d) rubber
  23. 23.True or false: an oven glove needs a waterproof material. (a) True (b) False
  24. 24.True or false: a cooking pot handle needs a heat insulator. (a) False (b) True
  25. 25.🧱 Which property matters most for the core of a wire? (a) transparent (b) electrical conductor (c) waterproof (d) heat insulator
  26. 26.🧱 Is plastic an electrical conductor or an insulator? (a) an insulator (b) a conductor
  27. 27.🧱 Which property matters most for a window pane? (a) electrical conductor (b) waterproof (c) transparent (d) heat insulator
  28. 28.🧱 Which property matters most for a car seat belt? (a) waterproof (b) flexible (c) transparent (d) heat insulator
  29. 29.🧱 Is rubber an electrical conductor or an insulator? (a) a conductor (b) an insulator
  30. 30.Which of these needs a waterproof material? (a) a raincoat (b) a switch contact (c) a tea flask lining (d) an oven glove
  31. 31.🧱 Which property matters most for a hair band? (a) heat insulator (b) waterproof (c) electrical conductor (d) flexible
  32. 32.🔍 Which is the odd one out? (a) graphite (b) cotton cloth (c) rubber (d) plastic
  33. 33.Which of these needs a waterproof material? (a) a hair band (b) a car seat belt (c) a switch contact (d) a water tank
  34. 34.🔍 Which is the odd one out? (a) rubber (b) dry wood (c) cotton cloth (d) copper
  35. 35.Which of these needs a flexible material? (a) an umbrella cover (b) a tea flask lining (c) a yoga mat (d) a window pane
  36. 36.True or false: a spectacle lens needs a flexible material. (a) True (b) False
  37. 37.🧱 Is copper an electrical conductor or an insulator? (a) a conductor (b) an insulator
  38. 38.Which of these needs a waterproof material? (a) a roof sheet (b) an oven glove (c) the core of a wire (d) a switch contact
  39. 39.🧱 Which material is best for a cooking pot handle? (a) aluminium (b) iron (c) wood or plastic (d) copper
  40. 40.🔍 Which is the odd one out? (a) aluminium (b) brass (c) plastic (d) steel

Answer key

  1. electrical conductor
  2. a car seat belt
  3. True
  4. copper
  5. clay pottery
  6. a conductor
  7. heat insulator
  8. a magnifier lens
  9. True
  10. a tea flask lining
  11. an oven glove
  12. an insulator
  13. False
  14. waterproof
  15. flexible
  16. rubber
  17. brass
  18. a switch contact
  19. a hair band
  20. True
  21. True
  22. steel
  23. False
  24. True
  25. electrical conductor
  26. an insulator
  27. transparent
  28. flexible
  29. an insulator
  30. a raincoat
  31. flexible
  32. graphite
  33. a water tank
  34. copper
  35. a yoga mat
  36. False
  37. a conductor
  38. a roof sheet
  39. wood or plastic
  40. plastic

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