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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 906 · 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 spectacle lens? (a) flexible (b) waterproof (c) electrical conductor (d) transparent
  2. 2.Which of these needs a transparent material? (a) a window pane (b) a skipping rope (c) a tea flask lining (d) a boat hull
  3. 3.True or false: a raincoat needs a waterproof material. (a) True (b) False
  4. 4.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  5. 5.True or false: a window pane needs a transparent material. (a) False (b) True
  6. 6.True or false: an umbrella cover needs a waterproof material. (a) True (b) False
  7. 7.Which of these needs a flexible material? (a) a boat hull (b) an umbrella cover (c) a car seat belt (d) a spectacle lens
  8. 8.🧱 Which material is best for the bars inside concrete? (a) steel (b) plastic (c) rubber (d) glass
  9. 9.🔍 Which is the odd one out? (a) glass (b) cotton cloth (c) dry wood (d) aluminium
  10. 10.True or false: a plug pin needs a waterproof material. (a) False (b) True
  11. 11.🔍 Which is the odd one out? (a) glass (b) plastic (c) cotton cloth (d) steel
  12. 12.🔍 Which is the odd one out? (a) cotton cloth (b) glass (c) rubber (d) graphite
  13. 13.🔍 Which is the odd one out? (a) copper (b) iron (c) aluminium (d) rubber
  14. 14.Which of these needs a heat insulator? (a) a switch contact (b) a tea flask lining (c) a spectacle lens (d) a skipping rope
  15. 15.True or false: a car seat belt needs a flexible material. (a) False (b) True
  16. 16.🧱 Which property matters most for a roof sheet? (a) transparent (b) flexible (c) electrical conductor (d) waterproof
  17. 17.🧱 Which material is best for a raincoat? (a) plastic-coated cloth (b) paper (c) cardboard (d) cotton wool
  18. 18.Which of these needs an electrical conductor? (a) a roof sheet (b) a switch contact (c) a skipping rope (d) a car seat belt
  19. 19.🧱 Which property matters most for an umbrella cover? (a) transparent (b) flexible (c) waterproof (d) electrical conductor
  20. 20.🧱 Which property matters most for a water tank? (a) transparent (b) heat insulator (c) electrical conductor (d) waterproof
  21. 21.🔍 Which is the odd one out? (a) graphite (b) iron (c) cotton cloth (d) steel
  22. 22.🧱 Is glass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  23. 23.Which of these needs a waterproof material? (a) a cooking pot handle (b) a raincoat (c) a hair band (d) a car windscreen
  24. 24.Which of these needs a waterproof material? (a) a spectacle lens (b) a yoga mat (c) a boat hull (d) a skipping rope
  25. 25.Which of these needs an electrical conductor? (a) the core of a wire (b) a magnifier lens (c) a tea flask lining (d) a spectacle lens
  26. 26.🧱 Which material is best for the core of an electric wire? (a) wood (b) rubber (c) glass (d) copper
  27. 27.Which of these needs a waterproof material? (a) a water tank (b) a car seat belt (c) a car windscreen (d) an oven glove
  28. 28.True or false: a yoga mat needs a flexible material. (a) False (b) True
  29. 29.Which of these needs a heat insulator? (a) a plug pin (b) a spectacle lens (c) a cooking pot handle (d) a yoga mat
  30. 30.🧱 Which property matters most for a hair band? (a) waterproof (b) transparent (c) heat insulator (d) flexible
  31. 31.Which of these needs a transparent material? (a) a car windscreen (b) a yoga mat (c) a roof sheet (d) a raincoat
  32. 32.🧱 Which property matters most for a plug pin? (a) flexible (b) transparent (c) heat insulator (d) electrical conductor
  33. 33.🔍 Which is the odd one out? (a) iron (b) plastic (c) brass (d) steel
  34. 34.🧱 Is cotton cloth an electrical conductor or an insulator? (a) a conductor (b) an insulator
  35. 35.🧱 Which property matters most for a switch contact? (a) electrical conductor (b) transparent (c) waterproof (d) heat insulator
  36. 36.🧱 Which property matters most for a magnifier lens? (a) electrical conductor (b) flexible (c) transparent (d) waterproof
  37. 37.🧱 Is graphite an electrical conductor or an insulator? (a) a conductor (b) an insulator
  38. 38.Which of these needs a waterproof material? (a) a plug pin (b) a roof sheet (c) a skipping rope (d) a car seat belt
  39. 39.🧱 Which property matters most for an oven glove? (a) waterproof (b) electrical conductor (c) flexible (d) heat insulator
  40. 40.🧱 Which material is best for a cooking pot handle? (a) iron (b) wood or plastic (c) copper (d) aluminium

Answer key

  1. transparent
  2. a window pane
  3. True
  4. a conductor
  5. True
  6. True
  7. a car seat belt
  8. steel
  9. aluminium
  10. False
  11. steel
  12. graphite
  13. rubber
  14. a tea flask lining
  15. True
  16. waterproof
  17. plastic-coated cloth
  18. a switch contact
  19. waterproof
  20. waterproof
  21. cotton cloth
  22. an insulator
  23. a raincoat
  24. a boat hull
  25. the core of a wire
  26. copper
  27. a water tank
  28. True
  29. a cooking pot handle
  30. flexible
  31. a car windscreen
  32. electrical conductor
  33. plastic
  34. an insulator
  35. electrical conductor
  36. transparent
  37. a conductor
  38. a roof sheet
  39. heat insulator
  40. wood or plastic

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