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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 767 · 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.🧱 Is brass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  2. 2.Which of these needs an electrical conductor? (a) a hair band (b) a yoga mat (c) a water tank (d) a switch contact
  3. 3.🔍 Which is the odd one out? (a) plastic (b) cotton cloth (c) rubber (d) aluminium
  4. 4.🧱 Which property matters most for a tea flask lining? (a) waterproof (b) heat insulator (c) electrical conductor (d) transparent
  5. 5.Which of these needs a heat insulator? (a) a plug pin (b) a boat hull (c) a roof sheet (d) an oven glove
  6. 6.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  7. 7.🔍 Which is the odd one out? (a) cotton cloth (b) clay pottery (c) dry wood (d) graphite
  8. 8.🧱 Is rubber an electrical conductor or an insulator? (a) an insulator (b) a conductor
  9. 9.Which of these needs a transparent material? (a) a plug pin (b) a raincoat (c) a tea flask lining (d) a window pane
  10. 10.🧱 Which material is best for a window pane? (a) brick (b) steel (c) glass (d) wood
  11. 11.True or false: the core of a wire needs an electrical conductor. (a) True (b) False
  12. 12.🧱 Which property matters most for the core of a wire? (a) flexible (b) waterproof (c) heat insulator (d) electrical conductor
  13. 13.🧱 Which property matters most for a water tank? (a) transparent (b) electrical conductor (c) heat insulator (d) waterproof
  14. 14.🔍 Which is the odd one out? (a) aluminium (b) rubber (c) iron (d) copper
  15. 15.Which of these needs a waterproof material? (a) a car seat belt (b) a magnifier lens (c) a water tank (d) a spectacle lens
  16. 16.🧱 Which material is best for the core of an electric wire? (a) wood (b) glass (c) copper (d) rubber
  17. 17.True or false: a magnifier lens needs a flexible material. (a) True (b) False
  18. 18.Which of these needs a heat insulator? (a) a raincoat (b) a cooking pot handle (c) a car seat belt (d) a plug pin
  19. 19.🧱 Which material is best for a raincoat? (a) cardboard (b) plastic-coated cloth (c) cotton wool (d) paper
  20. 20.🧱 Which material is best for the bars inside concrete? (a) plastic (b) rubber (c) glass (d) steel
  21. 21.Which of these needs a flexible material? (a) a yoga mat (b) a switch contact (c) a water tank (d) a spectacle lens
  22. 22.🔍 Which is the odd one out? (a) copper (b) brass (c) graphite (d) plastic
  23. 23.🧱 Which property matters most for a roof sheet? (a) electrical conductor (b) waterproof (c) transparent (d) heat insulator
  24. 24.True or false: an umbrella cover needs a waterproof material. (a) True (b) False
  25. 25.🔍 Which is the odd one out? (a) glass (b) cotton cloth (c) rubber (d) brass
  26. 26.🧱 Which property matters most for a magnifier lens? (a) flexible (b) heat insulator (c) waterproof (d) transparent
  27. 27.True or false: a tea flask lining needs an electrical conductor. (a) False (b) True
  28. 28.True or false: a yoga mat needs a flexible material. (a) False (b) True
  29. 29.🧱 Is copper an electrical conductor or an insulator? (a) a conductor (b) an insulator
  30. 30.🧱 Which property matters most for a plug pin? (a) transparent (b) electrical conductor (c) waterproof (d) heat insulator
  31. 31.🧱 Is graphite an electrical conductor or an insulator? (a) an insulator (b) a conductor
  32. 32.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
  33. 33.🔍 Which is the odd one out? (a) cotton cloth (b) copper (c) dry wood (d) plastic
  34. 34.True or false: a car seat belt needs a heat insulator. (a) False (b) True
  35. 35.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  36. 36.Which of these needs an electrical conductor? (a) a skipping rope (b) a plug pin (c) a cooking pot handle (d) a magnifier lens
  37. 37.🧱 Which property matters most for a car windscreen? (a) transparent (b) flexible (c) heat insulator (d) waterproof
  38. 38.🧱 Which property matters most for a car seat belt? (a) transparent (b) heat insulator (c) waterproof (d) flexible
  39. 39.🔍 Which is the odd one out? (a) clay pottery (b) dry wood (c) steel (d) plastic
  40. 40.🔍 Which is the odd one out? (a) steel (b) dry wood (c) iron (d) brass

Answer key

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

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