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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 948 · 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.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  2. 2.True or false: an umbrella cover needs a heat insulator. (a) True (b) False
  3. 3.True or false: a window pane needs a transparent material. (a) False (b) True
  4. 4.Which of these needs a transparent material? (a) a raincoat (b) a skipping rope (c) a cooking pot handle (d) a window pane
  5. 5.Which of these needs a flexible material? (a) a raincoat (b) a roof sheet (c) a hair band (d) an umbrella cover
  6. 6.True or false: a magnifier lens needs a transparent material. (a) False (b) True
  7. 7.🧱 Which material is best for a window pane? (a) glass (b) wood (c) brick (d) steel
  8. 8.🧱 Which property matters most for a plug pin? (a) waterproof (b) electrical conductor (c) heat insulator (d) flexible
  9. 9.🧱 Which property matters most for a car seat belt? (a) heat insulator (b) waterproof (c) flexible (d) transparent
  10. 10.Which of these needs a waterproof material? (a) a water tank (b) a skipping rope (c) a magnifier lens (d) a yoga mat
  11. 11.Which of these needs a transparent material? (a) a car windscreen (b) a switch contact (c) a roof sheet (d) a yoga mat
  12. 12.🧱 Which property matters most for a window pane? (a) transparent (b) flexible (c) waterproof (d) heat insulator
  13. 13.Which of these needs a waterproof material? (a) a magnifier lens (b) a roof sheet (c) a hair band (d) a spectacle lens
  14. 14.🔍 Which is the odd one out? (a) steel (b) copper (c) graphite (d) dry wood
  15. 15.🧱 Which material is best for a cooking pot handle? (a) wood or plastic (b) aluminium (c) copper (d) iron
  16. 16.🔍 Which is the odd one out? (a) glass (b) rubber (c) plastic (d) iron
  17. 17.🔍 Which is the odd one out? (a) cotton cloth (b) steel (c) copper (d) graphite
  18. 18.🧱 Is clay pottery an electrical conductor or an insulator? (a) an insulator (b) a conductor
  19. 19.Which of these needs an electrical conductor? (a) a spectacle lens (b) a cooking pot handle (c) a raincoat (d) a switch contact
  20. 20.🔍 Which is the odd one out? (a) aluminium (b) graphite (c) brass (d) glass
  21. 21.Which of these needs a waterproof material? (a) a window pane (b) a plug pin (c) a switch contact (d) an umbrella cover
  22. 22.🧱 Is iron an electrical conductor or an insulator? (a) a conductor (b) an insulator
  23. 23.Which of these needs an electrical conductor? (a) a car windscreen (b) a magnifier lens (c) the core of a wire (d) a hair band
  24. 24.🧱 Which material is best for the core of an electric wire? (a) rubber (b) glass (c) copper (d) wood
  25. 25.🔍 Which is the odd one out? (a) dry wood (b) rubber (c) copper (d) cotton cloth
  26. 26.🧱 Is brass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  27. 27.🧱 Is graphite an electrical conductor or an insulator? (a) a conductor (b) an insulator
  28. 28.🧱 Which material is best for a raincoat? (a) cotton wool (b) paper (c) cardboard (d) plastic-coated cloth
  29. 29.🧱 Which property matters most for a raincoat? (a) heat insulator (b) flexible (c) electrical conductor (d) waterproof
  30. 30.🧱 Which property matters most for a cooking pot handle? (a) electrical conductor (b) heat insulator (c) flexible (d) waterproof
  31. 31.True or false: a car seat belt needs a flexible material. (a) False (b) True
  32. 32.True or false: an oven glove needs an electrical conductor. (a) False (b) True
  33. 33.🧱 Is dry wood an electrical conductor or an insulator? (a) a conductor (b) an insulator
  34. 34.Which of these needs a flexible material? (a) a magnifier lens (b) a boat hull (c) a window pane (d) a yoga mat
  35. 35.🔍 Which is the odd one out? (a) aluminium (b) graphite (c) plastic (d) steel
  36. 36.🔍 Which is the odd one out? (a) clay pottery (b) copper (c) brass (d) aluminium
  37. 37.Which of these needs a flexible material? (a) a water tank (b) a roof sheet (c) a boat hull (d) a skipping rope
  38. 38.Which of these needs a heat insulator? (a) a window pane (b) a boat hull (c) a tea flask lining (d) a car seat belt
  39. 39.🧱 Is cotton cloth an electrical conductor or an insulator? (a) an insulator (b) a conductor
  40. 40.🧱 Which material is best for the bars inside concrete? (a) plastic (b) rubber (c) glass (d) steel

Answer key

  1. a conductor
  2. False
  3. True
  4. a window pane
  5. a hair band
  6. True
  7. glass
  8. electrical conductor
  9. flexible
  10. a water tank
  11. a car windscreen
  12. transparent
  13. a roof sheet
  14. dry wood
  15. wood or plastic
  16. iron
  17. cotton cloth
  18. an insulator
  19. a switch contact
  20. glass
  21. an umbrella cover
  22. a conductor
  23. the core of a wire
  24. copper
  25. copper
  26. a conductor
  27. a conductor
  28. plastic-coated cloth
  29. waterproof
  30. heat insulator
  31. True
  32. False
  33. an insulator
  34. a yoga mat
  35. plastic
  36. clay pottery
  37. a skipping rope
  38. a tea flask lining
  39. an insulator
  40. steel

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