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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 796 · 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 flexible material? (a) the core of a wire (b) a hair band (c) a spectacle lens (d) a roof sheet
  2. 2.🧱 Which property matters most for a plug pin? (a) heat insulator (b) waterproof (c) electrical conductor (d) transparent
  3. 3.🧱 Which material is best for a raincoat? (a) cardboard (b) cotton wool (c) plastic-coated cloth (d) paper
  4. 4.🔍 Which is the odd one out? (a) aluminium (b) cotton cloth (c) plastic (d) glass
  5. 5.True or false: a magnifier lens needs a transparent material. (a) True (b) False
  6. 6.🧱 Is iron an electrical conductor or an insulator? (a) a conductor (b) an insulator
  7. 7.🔍 Which is the odd one out? (a) cotton cloth (b) glass (c) plastic (d) steel
  8. 8.Which of these needs an electrical conductor? (a) a raincoat (b) the core of a wire (c) a car seat belt (d) a car windscreen
  9. 9.Which of these needs a waterproof material? (a) a car windscreen (b) a cooking pot handle (c) a yoga mat (d) a raincoat
  10. 10.🧱 Which property matters most for a skipping rope? (a) waterproof (b) transparent (c) flexible (d) electrical conductor
  11. 11.Which of these needs a transparent material? (a) a roof sheet (b) a yoga mat (c) a window pane (d) a boat hull
  12. 12.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
  13. 13.🧱 Is cotton cloth an electrical conductor or an insulator? (a) an insulator (b) a conductor
  14. 14.🧱 Which property matters most for a spectacle lens? (a) transparent (b) flexible (c) waterproof (d) heat insulator
  15. 15.🧱 Which material is best for a window pane? (a) glass (b) wood (c) steel (d) brick
  16. 16.🧱 Which material is best for a cooking pot handle? (a) iron (b) wood or plastic (c) aluminium (d) copper
  17. 17.🧱 Is glass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  18. 18.True or false: a spectacle lens needs a transparent material. (a) False (b) True
  19. 19.Which of these needs a heat insulator? (a) a spectacle lens (b) a car windscreen (c) a cooking pot handle (d) a skipping rope
  20. 20.True or false: a roof sheet needs a flexible material. (a) False (b) True
  21. 21.🔍 Which is the odd one out? (a) graphite (b) glass (c) cotton cloth (d) rubber
  22. 22.🧱 Which property matters most for a tea flask lining? (a) electrical conductor (b) flexible (c) heat insulator (d) waterproof
  23. 23.🧱 Is dry wood an electrical conductor or an insulator? (a) an insulator (b) a conductor
  24. 24.Which of these needs a flexible material? (a) a roof sheet (b) an umbrella cover (c) a skipping rope (d) an oven glove
  25. 25.🔍 Which is the odd one out? (a) plastic (b) rubber (c) dry wood (d) brass
  26. 26.🧱 Which property matters most for an umbrella cover? (a) waterproof (b) electrical conductor (c) heat insulator (d) transparent
  27. 27.Which of these needs a transparent material? (a) a magnifier lens (b) the core of a wire (c) an umbrella cover (d) a boat hull
  28. 28.True or false: a hair band needs a waterproof material. (a) True (b) False
  29. 29.🔍 Which is the odd one out? (a) brass (b) graphite (c) glass (d) copper
  30. 30.Which of these needs a heat insulator? (a) a magnifier lens (b) a tea flask lining (c) a boat hull (d) a spectacle lens
  31. 31.🧱 Which property matters most for a cooking pot handle? (a) heat insulator (b) transparent (c) flexible (d) waterproof
  32. 32.🧱 Is aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
  33. 33.🔍 Which is the odd one out? (a) aluminium (b) clay pottery (c) copper (d) brass
  34. 34.🧱 Which property matters most for a water tank? (a) flexible (b) waterproof (c) transparent (d) heat insulator
  35. 35.True or false: a yoga mat needs a flexible material. (a) False (b) True
  36. 36.🧱 Which property matters most for a switch contact? (a) electrical conductor (b) waterproof (c) heat insulator (d) flexible
  37. 37.🔍 Which is the odd one out? (a) iron (b) steel (c) plastic (d) copper
  38. 38.🔍 Which is the odd one out? (a) steel (b) iron (c) dry wood (d) copper
  39. 39.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  40. 40.🧱 Which property matters most for a raincoat? (a) waterproof (b) heat insulator (c) transparent (d) flexible

Answer key

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

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