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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 646 · 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 the core of a wire? (a) waterproof (b) electrical conductor (c) flexible (d) heat insulator
  2. 2.Which of these needs a transparent material? (a) a cooking pot handle (b) a boat hull (c) a car windscreen (d) an oven glove
  3. 3.True or false: a plug pin needs an electrical conductor. (a) True (b) False
  4. 4.🧱 Which material is best for the core of an electric wire? (a) wood (b) rubber (c) glass (d) copper
  5. 5.True or false: a car seat belt needs a waterproof material. (a) False (b) True
  6. 6.Which of these needs an electrical conductor? (a) a switch contact (b) a yoga mat (c) an umbrella cover (d) a window pane
  7. 7.🧱 Which property matters most for a car seat belt? (a) flexible (b) electrical conductor (c) waterproof (d) heat insulator
  8. 8.🧱 Which property matters most for a tea flask lining? (a) waterproof (b) electrical conductor (c) heat insulator (d) transparent
  9. 9.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  10. 10.Which of these needs a flexible material? (a) a raincoat (b) an oven glove (c) a spectacle lens (d) a car seat belt
  11. 11.🔍 Which is the odd one out? (a) cotton cloth (b) rubber (c) plastic (d) iron
  12. 12.🧱 Which material is best for a window pane? (a) steel (b) brick (c) glass (d) wood
  13. 13.🧱 Which material is best for a cooking pot handle? (a) copper (b) iron (c) wood or plastic (d) aluminium
  14. 14.🧱 Which property matters most for a cooking pot handle? (a) flexible (b) heat insulator (c) electrical conductor (d) transparent
  15. 15.🔍 Which is the odd one out? (a) aluminium (b) copper (c) graphite (d) dry wood
  16. 16.🧱 Is aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
  17. 17.🔍 Which is the odd one out? (a) glass (b) aluminium (c) brass (d) steel
  18. 18.True or false: a skipping rope needs a transparent material. (a) False (b) True
  19. 19.🔍 Which is the odd one out? (a) cotton cloth (b) graphite (c) aluminium (d) copper
  20. 20.Which of these needs a flexible material? (a) the core of a wire (b) a tea flask lining (c) a skipping rope (d) a spectacle lens
  21. 21.🧱 Is dry wood an electrical conductor or an insulator? (a) a conductor (b) an insulator
  22. 22.True or false: a water tank needs a waterproof material. (a) True (b) False
  23. 23.🧱 Which material is best for a raincoat? (a) paper (b) cotton wool (c) cardboard (d) plastic-coated cloth
  24. 24.True or false: a car windscreen needs a transparent material. (a) True (b) False
  25. 25.🔍 Which is the odd one out? (a) steel (b) brass (c) copper (d) plastic
  26. 26.True or false: an umbrella cover needs an electrical conductor. (a) True (b) False
  27. 27.True or false: an oven glove needs a heat insulator. (a) True (b) False
  28. 28.🧱 Which property matters most for a spectacle lens? (a) flexible (b) transparent (c) heat insulator (d) waterproof
  29. 29.True or false: a cooking pot handle needs an electrical conductor. (a) True (b) False
  30. 30.🧱 Is cotton cloth an electrical conductor or an insulator? (a) an insulator (b) a conductor
  31. 31.Which of these needs a transparent material? (a) a water tank (b) a magnifier lens (c) the core of a wire (d) an oven glove
  32. 32.True or false: a tea flask lining needs a heat insulator. (a) False (b) True
  33. 33.Which of these needs a transparent material? (a) a tea flask lining (b) a water tank (c) a boat hull (d) a window pane
  34. 34.Which of these needs a heat insulator? (a) a car windscreen (b) a boat hull (c) a hair band (d) a tea flask lining
  35. 35.🧱 Which material is best for the bars inside concrete? (a) plastic (b) glass (c) steel (d) rubber
  36. 36.Which of these needs an electrical conductor? (a) the core of a wire (b) a tea flask lining (c) a raincoat (d) a car windscreen
  37. 37.🔍 Which is the odd one out? (a) plastic (b) steel (c) rubber (d) dry wood
  38. 38.🧱 Which property matters most for a magnifier lens? (a) waterproof (b) electrical conductor (c) heat insulator (d) transparent
  39. 39.True or false: a hair band needs a transparent material. (a) False (b) True
  40. 40.🔍 Which is the odd one out? (a) rubber (b) iron (c) copper (d) steel

Answer key

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

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