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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 125 · 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 transparent material? (a) a boat hull (b) a spectacle lens (c) an oven glove (d) a water tank
  2. 2.🧱 Which property matters most for a cooking pot handle? (a) flexible (b) electrical conductor (c) waterproof (d) heat insulator
  3. 3.True or false: a water tank needs a transparent material. (a) True (b) False
  4. 4.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  5. 5.Which of these needs a heat insulator? (a) a yoga mat (b) a switch contact (c) a tea flask lining (d) a spectacle lens
  6. 6.🧱 Which material is best for the core of an electric wire? (a) rubber (b) glass (c) wood (d) copper
  7. 7.True or false: an umbrella cover needs a waterproof material. (a) True (b) False
  8. 8.🧱 Is dry wood an electrical conductor or an insulator? (a) an insulator (b) a conductor
  9. 9.🧱 Is aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
  10. 10.True or false: the core of a wire needs a heat insulator. (a) False (b) True
  11. 11.🔍 Which is the odd one out? (a) dry wood (b) clay pottery (c) aluminium (d) rubber
  12. 12.🧱 Which material is best for a raincoat? (a) cotton wool (b) paper (c) plastic-coated cloth (d) cardboard
  13. 13.Which of these needs an electrical conductor? (a) a hair band (b) a window pane (c) a switch contact (d) a car seat belt
  14. 14.🔍 Which is the odd one out? (a) glass (b) brass (c) dry wood (d) cotton cloth
  15. 15.🧱 Which material is best for the bars inside concrete? (a) plastic (b) rubber (c) glass (d) steel
  16. 16.🧱 Which material is best for a cooking pot handle? (a) aluminium (b) copper (c) wood or plastic (d) iron
  17. 17.Which of these needs a heat insulator? (a) a roof sheet (b) a water tank (c) an oven glove (d) the core of a wire
  18. 18.Which of these needs a waterproof material? (a) a cooking pot handle (b) a switch contact (c) an oven glove (d) a roof sheet
  19. 19.Which of these needs a heat insulator? (a) a boat hull (b) a cooking pot handle (c) a spectacle lens (d) a car seat belt
  20. 20.🧱 Which material is best for a window pane? (a) steel (b) glass (c) wood (d) brick
  21. 21.🧱 Is iron an electrical conductor or an insulator? (a) a conductor (b) an insulator
  22. 22.🧱 Which property matters most for a window pane? (a) transparent (b) waterproof (c) heat insulator (d) flexible
  23. 23.Which of these needs a flexible material? (a) a switch contact (b) a car seat belt (c) a roof sheet (d) a raincoat
  24. 24.🔍 Which is the odd one out? (a) rubber (b) graphite (c) glass (d) clay pottery
  25. 25.🔍 Which is the odd one out? (a) plastic (b) iron (c) cotton cloth (d) rubber
  26. 26.Which of these needs an electrical conductor? (a) a yoga mat (b) a raincoat (c) a magnifier lens (d) the core of a wire
  27. 27.🧱 Which property matters most for a car windscreen? (a) flexible (b) waterproof (c) electrical conductor (d) transparent
  28. 28.Which of these needs a waterproof material? (a) a magnifier lens (b) a yoga mat (c) an oven glove (d) a raincoat
  29. 29.🔍 Which is the odd one out? (a) graphite (b) clay pottery (c) steel (d) copper
  30. 30.🧱 Is glass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  31. 31.🧱 Is plastic an electrical conductor or an insulator? (a) an insulator (b) a conductor
  32. 32.True or false: a raincoat needs an electrical conductor. (a) True (b) False
  33. 33.🧱 Which property matters most for a raincoat? (a) waterproof (b) electrical conductor (c) transparent (d) flexible
  34. 34.Which of these needs a transparent material? (a) a roof sheet (b) a switch contact (c) the core of a wire (d) a car windscreen
  35. 35.🔍 Which is the odd one out? (a) iron (b) rubber (c) steel (d) brass
  36. 36.🧱 Which property matters most for an umbrella cover? (a) waterproof (b) electrical conductor (c) transparent (d) flexible
  37. 37.True or false: a switch contact needs a transparent material. (a) True (b) False
  38. 38.Which of these needs a flexible material? (a) a raincoat (b) a car windscreen (c) a cooking pot handle (d) a hair band
  39. 39.True or false: an oven glove needs an electrical conductor. (a) False (b) True
  40. 40.🧱 Is graphite an electrical conductor or an insulator? (a) a conductor (b) an insulator

Answer key

  1. a spectacle lens
  2. heat insulator
  3. False
  4. a conductor
  5. a tea flask lining
  6. copper
  7. True
  8. an insulator
  9. a conductor
  10. False
  11. aluminium
  12. plastic-coated cloth
  13. a switch contact
  14. brass
  15. steel
  16. wood or plastic
  17. an oven glove
  18. a roof sheet
  19. a cooking pot handle
  20. glass
  21. a conductor
  22. transparent
  23. a car seat belt
  24. graphite
  25. iron
  26. the core of a wire
  27. transparent
  28. a raincoat
  29. clay pottery
  30. an insulator
  31. an insulator
  32. False
  33. waterproof
  34. a car windscreen
  35. rubber
  36. waterproof
  37. False
  38. a hair band
  39. False
  40. a conductor

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