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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 852 · 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 material is best for the bars inside concrete? (a) rubber (b) glass (c) plastic (d) steel
  2. 2.🧱 Which material is best for a cooking pot handle? (a) aluminium (b) iron (c) wood or plastic (d) copper
  3. 3.🔍 Which is the odd one out? (a) aluminium (b) dry wood (c) cotton cloth (d) clay pottery
  4. 4.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
  5. 5.🔍 Which is the odd one out? (a) aluminium (b) cotton cloth (c) brass (d) copper
  6. 6.🔍 Which is the odd one out? (a) dry wood (b) clay pottery (c) rubber (d) iron
  7. 7.🧱 Which property matters most for an umbrella cover? (a) transparent (b) waterproof (c) electrical conductor (d) flexible
  8. 8.🧱 Which material is best for the core of an electric wire? (a) glass (b) rubber (c) copper (d) wood
  9. 9.🧱 Which property matters most for a car seat belt? (a) electrical conductor (b) heat insulator (c) waterproof (d) flexible
  10. 10.🔍 Which is the odd one out? (a) rubber (b) brass (c) clay pottery (d) glass
  11. 11.🧱 Which material is best for a window pane? (a) brick (b) wood (c) steel (d) glass
  12. 12.Which of these needs a transparent material? (a) an oven glove (b) a car windscreen (c) an umbrella cover (d) a plug pin
  13. 13.🧱 Is graphite an electrical conductor or an insulator? (a) a conductor (b) an insulator
  14. 14.🧱 Is copper an electrical conductor or an insulator? (a) a conductor (b) an insulator
  15. 15.True or false: a water tank needs a transparent material. (a) False (b) True
  16. 16.🔍 Which is the odd one out? (a) glass (b) steel (c) aluminium (d) copper
  17. 17.🧱 Which material is best for a raincoat? (a) plastic-coated cloth (b) paper (c) cotton wool (d) cardboard
  18. 18.🔍 Which is the odd one out? (a) cotton cloth (b) dry wood (c) plastic (d) graphite
  19. 19.🧱 Is cotton cloth an electrical conductor or an insulator? (a) a conductor (b) an insulator
  20. 20.Which of these needs an electrical conductor? (a) an umbrella cover (b) a switch contact (c) a skipping rope (d) a boat hull
  21. 21.Which of these needs a waterproof material? (a) a roof sheet (b) a hair band (c) a plug pin (d) a switch contact
  22. 22.🧱 Which property matters most for a yoga mat? (a) electrical conductor (b) flexible (c) transparent (d) heat insulator
  23. 23.True or false: a raincoat needs a waterproof material. (a) True (b) False
  24. 24.Which of these needs a heat insulator? (a) a boat hull (b) a yoga mat (c) a spectacle lens (d) a tea flask lining
  25. 25.True or false: a spectacle lens needs a heat insulator. (a) True (b) False
  26. 26.🧱 Is rubber an electrical conductor or an insulator? (a) a conductor (b) an insulator
  27. 27.🔍 Which is the odd one out? (a) copper (b) graphite (c) dry wood (d) aluminium
  28. 28.🧱 Which property matters most for a water tank? (a) waterproof (b) flexible (c) transparent (d) heat insulator
  29. 29.True or false: a switch contact needs a heat insulator. (a) False (b) True
  30. 30.🧱 Which property matters most for a raincoat? (a) transparent (b) flexible (c) heat insulator (d) waterproof
  31. 31.🧱 Which property matters most for a car windscreen? (a) transparent (b) heat insulator (c) electrical conductor (d) waterproof
  32. 32.True or false: the core of a wire needs an electrical conductor. (a) True (b) False
  33. 33.True or false: a water tank needs an electrical conductor. (a) False (b) True
  34. 34.🧱 Which property matters most for a hair band? (a) electrical conductor (b) heat insulator (c) waterproof (d) flexible
  35. 35.🧱 Which property matters most for a switch contact? (a) heat insulator (b) flexible (c) transparent (d) electrical conductor
  36. 36.🧱 Which property matters most for the core of a wire? (a) flexible (b) electrical conductor (c) waterproof (d) transparent
  37. 37.🧱 Which property matters most for a boat hull? (a) transparent (b) waterproof (c) heat insulator (d) flexible
  38. 38.Which of these needs a heat insulator? (a) an oven glove (b) a car seat belt (c) a spectacle lens (d) a raincoat
  39. 39.🔍 Which is the odd one out? (a) plastic (b) copper (c) clay pottery (d) glass
  40. 40.🧱 Is clay pottery an electrical conductor or an insulator? (a) a conductor (b) an insulator

Answer key

  1. steel
  2. wood or plastic
  3. aluminium
  4. an insulator
  5. cotton cloth
  6. iron
  7. waterproof
  8. copper
  9. flexible
  10. brass
  11. glass
  12. a car windscreen
  13. a conductor
  14. a conductor
  15. False
  16. glass
  17. plastic-coated cloth
  18. graphite
  19. an insulator
  20. a switch contact
  21. a roof sheet
  22. flexible
  23. True
  24. a tea flask lining
  25. False
  26. an insulator
  27. dry wood
  28. waterproof
  29. False
  30. waterproof
  31. transparent
  32. True
  33. False
  34. flexible
  35. electrical conductor
  36. electrical conductor
  37. waterproof
  38. an oven glove
  39. copper
  40. an insulator

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