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Engineering Worksheet: Materials

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

Answer key

  1. a plug pin
  2. electrical conductor
  3. flexible
  4. glass
  5. a switch contact
  6. True
  7. an oven glove
  8. steel
  9. flexible
  10. rubber
  11. waterproof
  12. False
  13. waterproof
  14. a yoga mat
  15. an insulator
  16. True
  17. wood or plastic
  18. heat insulator
  19. waterproof
  20. a conductor
  21. graphite
  22. transparent
  23. False
  24. True
  25. a tea flask lining
  26. an insulator
  27. a raincoat
  28. False
  29. copper
  30. the core of a wire
  31. plastic-coated cloth
  32. copper
  33. a conductor
  34. an insulator
  35. steel
  36. heat insulator
  37. True
  38. electrical conductor
  39. a conductor
  40. dry wood

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