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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 43 · 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 material is best for a cooking pot handle? (a) copper (b) aluminium (c) wood or plastic (d) iron
  2. 2.Which of these needs a transparent material? (a) a window pane (b) an oven glove (c) a raincoat (d) a yoga mat
  3. 3.True or false: a switch contact needs an electrical conductor. (a) False (b) True
  4. 4.True or false: a tea flask lining needs a heat insulator. (a) False (b) True
  5. 5.🧱 Which property matters most for a magnifier lens? (a) transparent (b) waterproof (c) heat insulator (d) flexible
  6. 6.Which of these needs a transparent material? (a) a car windscreen (b) a roof sheet (c) a water tank (d) a tea flask lining
  7. 7.Which of these needs an electrical conductor? (a) an oven glove (b) a raincoat (c) a switch contact (d) a roof sheet
  8. 8.🧱 Which material is best for a window pane? (a) brick (b) glass (c) wood (d) steel
  9. 9.🧱 Which material is best for a raincoat? (a) paper (b) cardboard (c) plastic-coated cloth (d) cotton wool
  10. 10.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
  11. 11.🧱 Is rubber an electrical conductor or an insulator? (a) an insulator (b) a conductor
  12. 12.Which of these needs a waterproof material? (a) a car seat belt (b) an oven glove (c) a roof sheet (d) a hair band
  13. 13.🔍 Which is the odd one out? (a) plastic (b) cotton cloth (c) dry wood (d) brass
  14. 14.🧱 Which property matters most for the core of a wire? (a) heat insulator (b) electrical conductor (c) transparent (d) waterproof
  15. 15.🧱 Which property matters most for an oven glove? (a) transparent (b) heat insulator (c) flexible (d) electrical conductor
  16. 16.🧱 Which property matters most for a water tank? (a) transparent (b) waterproof (c) electrical conductor (d) flexible
  17. 17.Which of these needs a waterproof material? (a) the core of a wire (b) a magnifier lens (c) a car seat belt (d) an umbrella cover
  18. 18.🧱 Is clay pottery an electrical conductor or an insulator? (a) a conductor (b) an insulator
  19. 19.🧱 Which property matters most for a boat hull? (a) heat insulator (b) electrical conductor (c) waterproof (d) flexible
  20. 20.🧱 Is cotton cloth an electrical conductor or an insulator? (a) a conductor (b) an insulator
  21. 21.🧱 Which material is best for the bars inside concrete? (a) steel (b) rubber (c) glass (d) plastic
  22. 22.🧱 Which property matters most for a yoga mat? (a) transparent (b) heat insulator (c) flexible (d) waterproof
  23. 23.True or false: an umbrella cover needs a flexible material. (a) True (b) False
  24. 24.🧱 Is iron an electrical conductor or an insulator? (a) a conductor (b) an insulator
  25. 25.🧱 Is dry wood an electrical conductor or an insulator? (a) a conductor (b) an insulator
  26. 26.Which of these needs a transparent material? (a) a plug pin (b) an oven glove (c) a spectacle lens (d) a yoga mat
  27. 27.True or false: a water tank needs a heat insulator. (a) False (b) True
  28. 28.🔍 Which is the odd one out? (a) steel (b) copper (c) graphite (d) plastic
  29. 29.🔍 Which is the odd one out? (a) dry wood (b) rubber (c) graphite (d) plastic
  30. 30.True or false: a raincoat needs a flexible material. (a) False (b) True
  31. 31.🧱 Which property matters most for a hair band? (a) heat insulator (b) transparent (c) waterproof (d) flexible
  32. 32.🧱 Is glass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  33. 33.True or false: a cooking pot handle needs a heat insulator. (a) True (b) False
  34. 34.Which of these needs a heat insulator? (a) a roof sheet (b) a tea flask lining (c) a window pane (d) a car windscreen
  35. 35.Which of these needs a waterproof material? (a) a boat hull (b) a cooking pot handle (c) a car windscreen (d) a tea flask lining
  36. 36.Which of these needs a waterproof material? (a) the core of a wire (b) a raincoat (c) a window pane (d) an oven glove
  37. 37.🔍 Which is the odd one out? (a) aluminium (b) graphite (c) iron (d) dry wood
  38. 38.True or false: a skipping rope needs a heat insulator. (a) False (b) True
  39. 39.🧱 Which property matters most for a window pane? (a) heat insulator (b) waterproof (c) transparent (d) flexible
  40. 40.🧱 Which property matters most for a plug pin? (a) electrical conductor (b) flexible (c) heat insulator (d) transparent

Answer key

  1. wood or plastic
  2. a window pane
  3. True
  4. True
  5. transparent
  6. a car windscreen
  7. a switch contact
  8. glass
  9. plastic-coated cloth
  10. an insulator
  11. an insulator
  12. a roof sheet
  13. brass
  14. electrical conductor
  15. heat insulator
  16. waterproof
  17. an umbrella cover
  18. an insulator
  19. waterproof
  20. an insulator
  21. steel
  22. flexible
  23. False
  24. a conductor
  25. an insulator
  26. a spectacle lens
  27. False
  28. plastic
  29. graphite
  30. False
  31. flexible
  32. an insulator
  33. True
  34. a tea flask lining
  35. a boat hull
  36. a raincoat
  37. dry wood
  38. False
  39. transparent
  40. electrical conductor

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