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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 241 · 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 a raincoat? (a) cotton wool (b) cardboard (c) plastic-coated cloth (d) paper
  2. 2.🧱 Is iron an electrical conductor or an insulator? (a) a conductor (b) an insulator
  3. 3.🧱 Which property matters most for a cooking pot handle? (a) flexible (b) electrical conductor (c) transparent (d) heat insulator
  4. 4.🧱 Which property matters most for the core of a wire? (a) flexible (b) waterproof (c) electrical conductor (d) heat insulator
  5. 5.🧱 Which property matters most for a hair band? (a) waterproof (b) heat insulator (c) transparent (d) flexible
  6. 6.🧱 Which property matters most for a boat hull? (a) flexible (b) transparent (c) electrical conductor (d) waterproof
  7. 7.Which of these needs a transparent material? (a) a car seat belt (b) a car windscreen (c) an umbrella cover (d) a hair band
  8. 8.🧱 Is graphite an electrical conductor or an insulator? (a) a conductor (b) an insulator
  9. 9.🧱 Is rubber an electrical conductor or an insulator? (a) a conductor (b) an insulator
  10. 10.🧱 Is brass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  11. 11.True or false: a window pane needs a transparent material. (a) True (b) False
  12. 12.True or false: a switch contact needs a flexible material. (a) False (b) True
  13. 13.True or false: an oven glove needs a heat insulator. (a) False (b) True
  14. 14.Which of these needs an electrical conductor? (a) an umbrella cover (b) a window pane (c) the core of a wire (d) a car seat belt
  15. 15.🔍 Which is the odd one out? (a) glass (b) plastic (c) aluminium (d) rubber
  16. 16.🧱 Which material is best for the core of an electric wire? (a) rubber (b) glass (c) wood (d) copper
  17. 17.True or false: a magnifier lens needs a transparent material. (a) False (b) True
  18. 18.🔍 Which is the odd one out? (a) graphite (b) copper (c) plastic (d) brass
  19. 19.🔍 Which is the odd one out? (a) plastic (b) dry wood (c) brass (d) clay pottery
  20. 20.🔍 Which is the odd one out? (a) glass (b) graphite (c) brass (d) aluminium
  21. 21.Which of these needs a flexible material? (a) an oven glove (b) a yoga mat (c) a water tank (d) a switch contact
  22. 22.True or false: a spectacle lens needs a flexible material. (a) False (b) True
  23. 23.🧱 Which property matters most for a tea flask lining? (a) transparent (b) flexible (c) waterproof (d) heat insulator
  24. 24.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
  25. 25.🔍 Which is the odd one out? (a) copper (b) clay pottery (c) glass (d) dry wood
  26. 26.🧱 Is cotton cloth an electrical conductor or an insulator? (a) an insulator (b) a conductor
  27. 27.Which of these needs a flexible material? (a) an umbrella cover (b) a cooking pot handle (c) a skipping rope (d) a boat hull
  28. 28.🔍 Which is the odd one out? (a) aluminium (b) steel (c) clay pottery (d) graphite
  29. 29.🔍 Which is the odd one out? (a) plastic (b) graphite (c) cotton cloth (d) dry wood
  30. 30.Which of these needs a transparent material? (a) a hair band (b) a spectacle lens (c) an oven glove (d) a plug pin
  31. 31.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  32. 32.Which of these needs a waterproof material? (a) a cooking pot handle (b) a plug pin (c) a raincoat (d) a hair band
  33. 33.Which of these needs a transparent material? (a) a window pane (b) a cooking pot handle (c) an umbrella cover (d) a roof sheet
  34. 34.True or false: a skipping rope needs an electrical conductor. (a) True (b) False
  35. 35.🧱 Which property matters most for a water tank? (a) flexible (b) transparent (c) waterproof (d) heat insulator
  36. 36.🔍 Which is the odd one out? (a) iron (b) cotton cloth (c) rubber (d) plastic
  37. 37.True or false: the core of a wire needs a waterproof material. (a) True (b) False
  38. 38.🔍 Which is the odd one out? (a) rubber (b) aluminium (c) graphite (d) copper
  39. 39.🧱 Which property matters most for a yoga mat? (a) heat insulator (b) waterproof (c) flexible (d) transparent
  40. 40.🔍 Which is the odd one out? (a) aluminium (b) dry wood (c) graphite (d) copper

Answer key

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

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