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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 833 · 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 car windscreen (b) a boat hull (c) a skipping rope (d) a hair band
  2. 2.🔍 Which is the odd one out? (a) iron (b) aluminium (c) dry wood (d) graphite
  3. 3.🧱 Is cotton cloth an electrical conductor or an insulator? (a) an insulator (b) a conductor
  4. 4.True or false: a raincoat needs a heat insulator. (a) True (b) False
  5. 5.🔍 Which is the odd one out? (a) dry wood (b) plastic (c) cotton cloth (d) steel
  6. 6.Which of these needs a waterproof material? (a) a plug pin (b) a water tank (c) a tea flask lining (d) an oven glove
  7. 7.🧱 Which material is best for a window pane? (a) wood (b) steel (c) brick (d) glass
  8. 8.🧱 Is clay pottery an electrical conductor or an insulator? (a) an insulator (b) a conductor
  9. 9.True or false: a raincoat needs a waterproof material. (a) False (b) True
  10. 10.🔍 Which is the odd one out? (a) iron (b) glass (c) brass (d) steel
  11. 11.🔍 Which is the odd one out? (a) dry wood (b) aluminium (c) glass (d) rubber
  12. 12.🔍 Which is the odd one out? (a) rubber (b) copper (c) iron (d) aluminium
  13. 13.🧱 Which property matters most for a tea flask lining? (a) waterproof (b) heat insulator (c) electrical conductor (d) transparent
  14. 14.Which of these needs a heat insulator? (a) a boat hull (b) a water tank (c) a spectacle lens (d) an oven glove
  15. 15.True or false: a magnifier lens needs a heat insulator. (a) True (b) False
  16. 16.True or false: the core of a wire needs an electrical conductor. (a) True (b) False
  17. 17.True or false: an umbrella cover needs an electrical conductor. (a) True (b) False
  18. 18.🧱 Is rubber an electrical conductor or an insulator? (a) a conductor (b) an insulator
  19. 19.🔍 Which is the odd one out? (a) cotton cloth (b) brass (c) graphite (d) copper
  20. 20.🧱 Is steel an electrical conductor or an insulator? (a) a conductor (b) an insulator
  21. 21.True or false: a yoga mat needs a transparent material. (a) False (b) True
  22. 22.🧱 Which property matters most for a plug pin? (a) transparent (b) waterproof (c) flexible (d) electrical conductor
  23. 23.True or false: a switch contact needs a transparent material. (a) False (b) True
  24. 24.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  25. 25.True or false: a switch contact needs an electrical conductor. (a) False (b) True
  26. 26.🧱 Which property matters most for an umbrella cover? (a) transparent (b) flexible (c) electrical conductor (d) waterproof
  27. 27.🧱 Which property matters most for an oven glove? (a) waterproof (b) flexible (c) heat insulator (d) transparent
  28. 28.Which of these needs a flexible material? (a) a tea flask lining (b) a yoga mat (c) a cooking pot handle (d) a water tank
  29. 29.🔍 Which is the odd one out? (a) rubber (b) plastic (c) cotton cloth (d) graphite
  30. 30.🧱 Which material is best for a raincoat? (a) plastic-coated cloth (b) paper (c) cardboard (d) cotton wool
  31. 31.🧱 Is dry wood an electrical conductor or an insulator? (a) an insulator (b) a conductor
  32. 32.Which of these needs a heat insulator? (a) a cooking pot handle (b) a boat hull (c) the core of a wire (d) an umbrella cover
  33. 33.Which of these needs a transparent material? (a) a magnifier lens (b) a yoga mat (c) a switch contact (d) the core of a wire
  34. 34.Which of these needs a flexible material? (a) a magnifier lens (b) an umbrella cover (c) a raincoat (d) a hair band
  35. 35.🧱 Which material is best for the bars inside concrete? (a) glass (b) steel (c) rubber (d) plastic
  36. 36.🧱 Which material is best for a cooking pot handle? (a) aluminium (b) copper (c) wood or plastic (d) iron
  37. 37.Which of these needs an electrical conductor? (a) a tea flask lining (b) a raincoat (c) a switch contact (d) a car windscreen
  38. 38.🔍 Which is the odd one out? (a) copper (b) plastic (c) brass (d) aluminium
  39. 39.🔍 Which is the odd one out? (a) cotton cloth (b) rubber (c) glass (d) iron
  40. 40.True or false: a water tank needs a waterproof material. (a) True (b) False

Answer key

  1. a boat hull
  2. dry wood
  3. an insulator
  4. False
  5. steel
  6. a water tank
  7. glass
  8. an insulator
  9. True
  10. glass
  11. aluminium
  12. rubber
  13. heat insulator
  14. an oven glove
  15. False
  16. True
  17. False
  18. an insulator
  19. cotton cloth
  20. a conductor
  21. False
  22. electrical conductor
  23. False
  24. a conductor
  25. True
  26. waterproof
  27. heat insulator
  28. a yoga mat
  29. graphite
  30. plastic-coated cloth
  31. an insulator
  32. a cooking pot handle
  33. a magnifier lens
  34. a hair band
  35. steel
  36. wood or plastic
  37. a switch contact
  38. plastic
  39. iron
  40. True

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