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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 718 · 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 of these needs a waterproof material? (a) a water tank (b) a skipping rope (c) a hair band (d) a window pane
  2. 2.🧱 Which material is best for the bars inside concrete? (a) rubber (b) glass (c) plastic (d) steel
  3. 3.🧱 Which material is best for a window pane? (a) wood (b) brick (c) steel (d) glass
  4. 4.🔍 Which is the odd one out? (a) rubber (b) plastic (c) brass (d) clay pottery
  5. 5.🧱 Which material is best for a cooking pot handle? (a) aluminium (b) iron (c) copper (d) wood or plastic
  6. 6.🧱 Which material is best for the core of an electric wire? (a) wood (b) glass (c) copper (d) rubber
  7. 7.Which of these needs an electrical conductor? (a) a plug pin (b) a roof sheet (c) a tea flask lining (d) a spectacle lens
  8. 8.🧱 Which property matters most for an oven glove? (a) waterproof (b) transparent (c) electrical conductor (d) heat insulator
  9. 9.True or false: a car seat belt needs a flexible material. (a) True (b) False
  10. 10.True or false: a spectacle lens needs an electrical conductor. (a) False (b) True
  11. 11.🧱 Which property matters most for an umbrella cover? (a) flexible (b) transparent (c) waterproof (d) electrical conductor
  12. 12.🧱 Is copper an electrical conductor or an insulator? (a) a conductor (b) an insulator
  13. 13.🧱 Which property matters most for a yoga mat? (a) electrical conductor (b) flexible (c) transparent (d) heat insulator
  14. 14.True or false: a plug pin needs an electrical conductor. (a) False (b) True
  15. 15.🧱 Which property matters most for a car seat belt? (a) electrical conductor (b) transparent (c) flexible (d) waterproof
  16. 16.True or false: a switch contact needs a waterproof material. (a) True (b) False
  17. 17.🧱 Which property matters most for a hair band? (a) electrical conductor (b) transparent (c) heat insulator (d) flexible
  18. 18.Which of these needs an electrical conductor? (a) a water tank (b) a roof sheet (c) an umbrella cover (d) a switch contact
  19. 19.True or false: a yoga mat needs a heat insulator. (a) True (b) False
  20. 20.True or false: an umbrella cover needs a waterproof material. (a) True (b) False
  21. 21.🧱 Which property matters most for a spectacle lens? (a) flexible (b) waterproof (c) transparent (d) heat insulator
  22. 22.🔍 Which is the odd one out? (a) graphite (b) cotton cloth (c) steel (d) iron
  23. 23.🔍 Which is the odd one out? (a) copper (b) dry wood (c) steel (d) aluminium
  24. 24.Which of these needs a waterproof material? (a) the core of a wire (b) a cooking pot handle (c) a raincoat (d) a hair band
  25. 25.Which of these needs a flexible material? (a) a yoga mat (b) a tea flask lining (c) a raincoat (d) a cooking pot handle
  26. 26.🔍 Which is the odd one out? (a) dry wood (b) cotton cloth (c) rubber (d) graphite
  27. 27.🧱 Which material is best for a raincoat? (a) paper (b) cardboard (c) plastic-coated cloth (d) cotton wool
  28. 28.🧱 Is aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
  29. 29.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
  30. 30.True or false: a spectacle lens needs a transparent material. (a) True (b) False
  31. 31.Which of these needs an electrical conductor? (a) a yoga mat (b) a water tank (c) the core of a wire (d) a window pane
  32. 32.🧱 Is rubber an electrical conductor or an insulator? (a) a conductor (b) an insulator
  33. 33.True or false: a window pane needs an electrical conductor. (a) False (b) True
  34. 34.🧱 Is clay pottery an electrical conductor or an insulator? (a) a conductor (b) an insulator
  35. 35.True or false: a window pane needs a heat insulator. (a) True (b) False
  36. 36.Which of these needs a flexible material? (a) a car windscreen (b) a switch contact (c) a window pane (d) a car seat belt
  37. 37.True or false: a hair band needs a flexible material. (a) True (b) False
  38. 38.True or false: a magnifier lens needs a heat insulator. (a) False (b) True
  39. 39.Which of these needs a waterproof material? (a) a spectacle lens (b) a car seat belt (c) a skipping rope (d) an umbrella cover
  40. 40.True or false: a switch contact needs an electrical conductor. (a) False (b) True

Answer key

  1. a water tank
  2. steel
  3. glass
  4. brass
  5. wood or plastic
  6. copper
  7. a plug pin
  8. heat insulator
  9. True
  10. False
  11. waterproof
  12. a conductor
  13. flexible
  14. True
  15. flexible
  16. False
  17. flexible
  18. a switch contact
  19. False
  20. True
  21. transparent
  22. cotton cloth
  23. dry wood
  24. a raincoat
  25. a yoga mat
  26. graphite
  27. plastic-coated cloth
  28. a conductor
  29. a conductor
  30. True
  31. the core of a wire
  32. an insulator
  33. False
  34. an insulator
  35. False
  36. a car seat belt
  37. True
  38. False
  39. an umbrella cover
  40. True

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