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Engineering Worksheet: Materials

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

Answer key

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

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