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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 700 · 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 a boat hull? (a) flexible (b) heat insulator (c) waterproof (d) transparent
  2. 2.🔍 Which is the odd one out? (a) copper (b) dry wood (c) aluminium (d) brass
  3. 3.🧱 Which material is best for the bars inside concrete? (a) plastic (b) steel (c) rubber (d) glass
  4. 4.🧱 Which material is best for the core of an electric wire? (a) rubber (b) glass (c) copper (d) wood
  5. 5.True or false: a switch contact needs an electrical conductor. (a) True (b) False
  6. 6.🧱 Which property matters most for a tea flask lining? (a) flexible (b) waterproof (c) heat insulator (d) electrical conductor
  7. 7.🧱 Which property matters most for a switch contact? (a) flexible (b) heat insulator (c) electrical conductor (d) waterproof
  8. 8.🧱 Is graphite an electrical conductor or an insulator? (a) a conductor (b) an insulator
  9. 9.Which of these needs a flexible material? (a) a car seat belt (b) a magnifier lens (c) a roof sheet (d) the core of a wire
  10. 10.🔍 Which is the odd one out? (a) cotton cloth (b) copper (c) plastic (d) rubber
  11. 11.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  12. 12.True or false: a skipping rope needs a flexible material. (a) True (b) False
  13. 13.🧱 Which material is best for a raincoat? (a) paper (b) cotton wool (c) cardboard (d) plastic-coated cloth
  14. 14.🧱 Is brass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  15. 15.Which of these needs a heat insulator? (a) a cooking pot handle (b) a switch contact (c) a window pane (d) an umbrella cover
  16. 16.Which of these needs a heat insulator? (a) a plug pin (b) a roof sheet (c) an oven glove (d) a boat hull
  17. 17.Which of these needs a flexible material? (a) a window pane (b) a magnifier lens (c) a roof sheet (d) a hair band
  18. 18.Which of these needs a transparent material? (a) a car seat belt (b) a boat hull (c) a magnifier lens (d) a yoga mat
  19. 19.🔍 Which is the odd one out? (a) graphite (b) rubber (c) steel (d) iron
  20. 20.True or false: a magnifier lens needs a waterproof material. (a) True (b) False
  21. 21.True or false: a car seat belt needs a heat insulator. (a) True (b) False
  22. 22.True or false: a roof sheet needs a waterproof material. (a) False (b) True
  23. 23.🧱 Which property matters most for a window pane? (a) transparent (b) electrical conductor (c) heat insulator (d) flexible
  24. 24.True or false: the core of a wire needs an electrical conductor. (a) True (b) False
  25. 25.Which of these needs a waterproof material? (a) a tea flask lining (b) a switch contact (c) a boat hull (d) an oven glove
  26. 26.True or false: a switch contact needs a waterproof material. (a) True (b) False
  27. 27.Which of these needs a flexible material? (a) a boat hull (b) a water tank (c) a raincoat (d) a skipping rope
  28. 28.🧱 Which material is best for a window pane? (a) steel (b) brick (c) glass (d) wood
  29. 29.🔍 Which is the odd one out? (a) brass (b) steel (c) aluminium (d) clay pottery
  30. 30.Which of these needs a heat insulator? (a) a car windscreen (b) a tea flask lining (c) a car seat belt (d) a plug pin
  31. 31.Which of these needs a waterproof material? (a) a switch contact (b) the core of a wire (c) a car windscreen (d) a raincoat
  32. 32.🧱 Is cotton cloth an electrical conductor or an insulator? (a) an insulator (b) a conductor
  33. 33.Which of these needs an electrical conductor? (a) a hair band (b) a yoga mat (c) a plug pin (d) a raincoat
  34. 34.🧱 Which property matters most for an umbrella cover? (a) heat insulator (b) transparent (c) waterproof (d) electrical conductor
  35. 35.Which of these needs a waterproof material? (a) a switch contact (b) a roof sheet (c) a tea flask lining (d) a hair band
  36. 36.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
  37. 37.🧱 Which material is best for a cooking pot handle? (a) aluminium (b) copper (c) wood or plastic (d) iron
  38. 38.🧱 Which property matters most for a water tank? (a) heat insulator (b) electrical conductor (c) flexible (d) waterproof
  39. 39.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  40. 40.🧱 Which property matters most for a hair band? (a) flexible (b) heat insulator (c) transparent (d) electrical conductor

Answer key

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

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