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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 899 · 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 magnifier lens (b) a plug pin (c) a car windscreen (d) an umbrella cover
  2. 2.🔍 Which is the odd one out? (a) glass (b) dry wood (c) iron (d) rubber
  3. 3.Which of these needs a heat insulator? (a) a water tank (b) an oven glove (c) a window pane (d) a car windscreen
  4. 4.True or false: a skipping rope needs a flexible material. (a) False (b) True
  5. 5.🧱 Which property matters most for a tea flask lining? (a) heat insulator (b) electrical conductor (c) transparent (d) waterproof
  6. 6.🔍 Which is the odd one out? (a) steel (b) cotton cloth (c) brass (d) copper
  7. 7.🧱 Which material is best for a window pane? (a) brick (b) glass (c) wood (d) steel
  8. 8.🧱 Which material is best for the core of an electric wire? (a) wood (b) rubber (c) glass (d) copper
  9. 9.Which of these needs a transparent material? (a) a window pane (b) a hair band (c) a water tank (d) a boat hull
  10. 10.Which of these needs a transparent material? (a) a car windscreen (b) a switch contact (c) a hair band (d) a skipping rope
  11. 11.True or false: the core of a wire needs an electrical conductor. (a) False (b) True
  12. 12.🔍 Which is the odd one out? (a) iron (b) graphite (c) copper (d) plastic
  13. 13.🔍 Which is the odd one out? (a) graphite (b) copper (c) glass (d) aluminium
  14. 14.🔍 Which is the odd one out? (a) iron (b) graphite (c) dry wood (d) brass
  15. 15.🧱 Which property matters most for a window pane? (a) waterproof (b) transparent (c) flexible (d) electrical conductor
  16. 16.🔍 Which is the odd one out? (a) steel (b) brass (c) copper (d) clay pottery
  17. 17.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  18. 18.🔍 Which is the odd one out? (a) clay pottery (b) rubber (c) copper (d) cotton cloth
  19. 19.🔍 Which is the odd one out? (a) plastic (b) rubber (c) brass (d) glass
  20. 20.🧱 Which property matters most for a magnifier lens? (a) heat insulator (b) electrical conductor (c) transparent (d) flexible
  21. 21.Which of these needs a transparent material? (a) a water tank (b) an oven glove (c) a yoga mat (d) a spectacle lens
  22. 22.True or false: a car seat belt needs a flexible material. (a) False (b) True
  23. 23.🔍 Which is the odd one out? (a) rubber (b) graphite (c) clay pottery (d) plastic
  24. 24.True or false: a car seat belt needs a heat insulator. (a) False (b) True
  25. 25.🧱 Is steel an electrical conductor or an insulator? (a) a conductor (b) an insulator
  26. 26.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
  27. 27.🧱 Which property matters most for a boat hull? (a) electrical conductor (b) waterproof (c) transparent (d) heat insulator
  28. 28.Which of these needs a flexible material? (a) a hair band (b) a boat hull (c) an umbrella cover (d) a cooking pot handle
  29. 29.True or false: a yoga mat needs an electrical conductor. (a) False (b) True
  30. 30.True or false: a water tank needs a waterproof material. (a) False (b) True
  31. 31.🧱 Which property matters most for a plug pin? (a) flexible (b) heat insulator (c) electrical conductor (d) waterproof
  32. 32.Which of these needs a waterproof material? (a) a yoga mat (b) a raincoat (c) a hair band (d) a skipping rope
  33. 33.🔍 Which is the odd one out? (a) graphite (b) rubber (c) aluminium (d) brass
  34. 34.Which of these needs an electrical conductor? (a) an oven glove (b) a raincoat (c) a switch contact (d) a roof sheet
  35. 35.True or false: a car windscreen needs a transparent material. (a) True (b) False
  36. 36.Which of these needs an electrical conductor? (a) a hair band (b) a tea flask lining (c) the core of a wire (d) a cooking pot handle
  37. 37.🧱 Which property matters most for a skipping rope? (a) waterproof (b) electrical conductor (c) transparent (d) flexible
  38. 38.🧱 Is dry wood an electrical conductor or an insulator? (a) an insulator (b) a conductor
  39. 39.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
  40. 40.True or false: a magnifier lens needs an electrical conductor. (a) False (b) True

Answer key

  1. an umbrella cover
  2. iron
  3. an oven glove
  4. True
  5. heat insulator
  6. cotton cloth
  7. glass
  8. copper
  9. a window pane
  10. a car windscreen
  11. True
  12. plastic
  13. glass
  14. dry wood
  15. transparent
  16. clay pottery
  17. a conductor
  18. copper
  19. brass
  20. transparent
  21. a spectacle lens
  22. True
  23. graphite
  24. False
  25. a conductor
  26. a conductor
  27. waterproof
  28. a hair band
  29. False
  30. True
  31. electrical conductor
  32. a raincoat
  33. rubber
  34. a switch contact
  35. True
  36. the core of a wire
  37. flexible
  38. an insulator
  39. an insulator
  40. False

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