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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 336 · 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 is the odd one out? (a) dry wood (b) iron (c) cotton cloth (d) glass
  2. 2.🔍 Which is the odd one out? (a) plastic (b) cotton cloth (c) rubber (d) aluminium
  3. 3.True or false: a hair band needs an electrical conductor. (a) True (b) False
  4. 4.Which of these needs a flexible material? (a) an umbrella cover (b) a car seat belt (c) a window pane (d) a water tank
  5. 5.🧱 Which material is best for a window pane? (a) steel (b) brick (c) wood (d) glass
  6. 6.🧱 Which material is best for a cooking pot handle? (a) aluminium (b) iron (c) copper (d) wood or plastic
  7. 7.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  8. 8.Which of these needs a transparent material? (a) a spectacle lens (b) a tea flask lining (c) a hair band (d) the core of a wire
  9. 9.Which of these needs an electrical conductor? (a) a boat hull (b) a tea flask lining (c) the core of a wire (d) a skipping rope
  10. 10.Which of these needs a waterproof material? (a) a switch contact (b) a water tank (c) a car windscreen (d) a plug pin
  11. 11.🧱 Is brass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  12. 12.🔍 Which is the odd one out? (a) steel (b) dry wood (c) copper (d) brass
  13. 13.🧱 Is steel an electrical conductor or an insulator? (a) a conductor (b) an insulator
  14. 14.🧱 Is glass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  15. 15.🧱 Which property matters most for a skipping rope? (a) transparent (b) flexible (c) electrical conductor (d) waterproof
  16. 16.Which of these needs a waterproof material? (a) a skipping rope (b) the core of a wire (c) a tea flask lining (d) a boat hull
  17. 17.🧱 Is iron an electrical conductor or an insulator? (a) a conductor (b) an insulator
  18. 18.Which of these needs a transparent material? (a) a raincoat (b) a tea flask lining (c) a window pane (d) a car seat belt
  19. 19.True or false: a raincoat needs a heat insulator. (a) False (b) True
  20. 20.🧱 Is dry wood an electrical conductor or an insulator? (a) a conductor (b) an insulator
  21. 21.🧱 Is rubber an electrical conductor or an insulator? (a) an insulator (b) a conductor
  22. 22.True or false: a window pane needs a waterproof material. (a) True (b) False
  23. 23.🧱 Which property matters most for an umbrella cover? (a) waterproof (b) transparent (c) flexible (d) electrical conductor
  24. 24.🔍 Which is the odd one out? (a) iron (b) copper (c) brass (d) plastic
  25. 25.True or false: a plug pin needs an electrical conductor. (a) True (b) False
  26. 26.🔍 Which is the odd one out? (a) glass (b) copper (c) steel (d) graphite
  27. 27.True or false: a raincoat needs a flexible material. (a) True (b) False
  28. 28.🔍 Which is the odd one out? (a) graphite (b) iron (c) cotton cloth (d) steel
  29. 29.Which of these needs a transparent material? (a) a car windscreen (b) a raincoat (c) an umbrella cover (d) a switch contact
  30. 30.🧱 Is clay pottery an electrical conductor or an insulator? (a) a conductor (b) an insulator
  31. 31.Which of these needs a heat insulator? (a) a cooking pot handle (b) a window pane (c) a spectacle lens (d) a roof sheet
  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) plastic (b) copper (c) glass (d) dry wood
  34. 34.True or false: a roof sheet needs a waterproof material. (a) False (b) True
  35. 35.Which of these needs a heat insulator? (a) the core of a wire (b) a plug pin (c) a car windscreen (d) an oven glove
  36. 36.🔍 Which is the odd one out? (a) rubber (b) graphite (c) dry wood (d) clay pottery
  37. 37.True or false: a magnifier lens needs a waterproof material. (a) True (b) False
  38. 38.🧱 Which material is best for the core of an electric wire? (a) glass (b) copper (c) wood (d) rubber
  39. 39.Which of these needs an electrical conductor? (a) a switch contact (b) a hair band (c) a magnifier lens (d) a water tank
  40. 40.True or false: an oven glove needs a waterproof material. (a) True (b) False

Answer key

  1. iron
  2. aluminium
  3. False
  4. a car seat belt
  5. glass
  6. wood or plastic
  7. a conductor
  8. a spectacle lens
  9. the core of a wire
  10. a water tank
  11. a conductor
  12. dry wood
  13. a conductor
  14. an insulator
  15. flexible
  16. a boat hull
  17. a conductor
  18. a window pane
  19. False
  20. an insulator
  21. an insulator
  22. False
  23. waterproof
  24. plastic
  25. True
  26. glass
  27. False
  28. cotton cloth
  29. a car windscreen
  30. an insulator
  31. a cooking pot handle
  32. an insulator
  33. copper
  34. True
  35. an oven glove
  36. graphite
  37. False
  38. copper
  39. a switch contact
  40. False

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