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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 768 · 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.True or false: a yoga mat needs a flexible material. (a) False (b) True
  2. 2.🧱 Which property matters most for a tea flask lining? (a) electrical conductor (b) waterproof (c) flexible (d) heat insulator
  3. 3.🧱 Which material is best for a window pane? (a) wood (b) steel (c) glass (d) brick
  4. 4.🔍 Which is the odd one out? (a) iron (b) copper (c) clay pottery (d) graphite
  5. 5.True or false: a water tank needs a waterproof material. (a) True (b) False
  6. 6.Which of these needs a flexible material? (a) the core of a wire (b) a switch contact (c) a spectacle lens (d) a skipping rope
  7. 7.🧱 Is clay pottery an electrical conductor or an insulator? (a) an insulator (b) a conductor
  8. 8.Which of these needs an electrical conductor? (a) an umbrella cover (b) a magnifier lens (c) a roof sheet (d) the core of a wire
  9. 9.Which of these needs a flexible material? (a) a hair band (b) a magnifier lens (c) a boat hull (d) a plug pin
  10. 10.🧱 Which property matters most for an oven glove? (a) electrical conductor (b) waterproof (c) transparent (d) heat insulator
  11. 11.🔍 Which is the odd one out? (a) dry wood (b) glass (c) graphite (d) cotton cloth
  12. 12.True or false: a boat hull needs a heat insulator. (a) True (b) False
  13. 13.🧱 Which property matters most for a hair band? (a) electrical conductor (b) heat insulator (c) waterproof (d) flexible
  14. 14.Which of these needs a waterproof material? (a) a cooking pot handle (b) an umbrella cover (c) a car windscreen (d) a plug pin
  15. 15.🧱 Is rubber an electrical conductor or an insulator? (a) an insulator (b) a conductor
  16. 16.🔍 Which is the odd one out? (a) clay pottery (b) cotton cloth (c) iron (d) plastic
  17. 17.🧱 Which material is best for the core of an electric wire? (a) wood (b) glass (c) copper (d) rubber
  18. 18.🧱 Which material is best for a raincoat? (a) plastic-coated cloth (b) paper (c) cotton wool (d) cardboard
  19. 19.🧱 Is dry wood an electrical conductor or an insulator? (a) an insulator (b) a conductor
  20. 20.Which of these needs an electrical conductor? (a) an umbrella cover (b) a spectacle lens (c) a hair band (d) a plug pin
  21. 21.Which of these needs a waterproof material? (a) a spectacle lens (b) a car windscreen (c) a tea flask lining (d) a raincoat
  22. 22.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  23. 23.🧱 Is glass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  24. 24.🔍 Which is the odd one out? (a) plastic (b) iron (c) copper (d) aluminium
  25. 25.🧱 Which property matters most for a yoga mat? (a) flexible (b) heat insulator (c) transparent (d) waterproof
  26. 26.🧱 Which property matters most for a skipping rope? (a) heat insulator (b) transparent (c) waterproof (d) flexible
  27. 27.Which of these needs a heat insulator? (a) a water tank (b) an umbrella cover (c) the core of a wire (d) an oven glove
  28. 28.🧱 Which material is best for the bars inside concrete? (a) glass (b) rubber (c) plastic (d) steel
  29. 29.True or false: a raincoat needs a heat insulator. (a) True (b) False
  30. 30.🧱 Is graphite an electrical conductor or an insulator? (a) a conductor (b) an insulator
  31. 31.🧱 Which property matters most for a boat hull? (a) flexible (b) waterproof (c) electrical conductor (d) transparent
  32. 32.True or false: a tea flask lining needs a heat insulator. (a) False (b) True
  33. 33.🧱 Which property matters most for a spectacle lens? (a) flexible (b) transparent (c) electrical conductor (d) waterproof
  34. 34.🔍 Which is the odd one out? (a) rubber (b) clay pottery (c) copper (d) dry wood
  35. 35.True or false: a window pane needs a waterproof material. (a) False (b) True
  36. 36.🔍 Which is the odd one out? (a) glass (b) rubber (c) brass (d) clay pottery
  37. 37.🧱 Which property matters most for a window pane? (a) transparent (b) electrical conductor (c) waterproof (d) heat insulator
  38. 38.🧱 Which property matters most for an umbrella cover? (a) electrical conductor (b) waterproof (c) flexible (d) heat insulator
  39. 39.Which of these needs a waterproof material? (a) a magnifier lens (b) a cooking pot handle (c) a boat hull (d) a switch contact
  40. 40.True or false: a car windscreen needs a flexible material. (a) True (b) False

Answer key

  1. True
  2. heat insulator
  3. glass
  4. clay pottery
  5. True
  6. a skipping rope
  7. an insulator
  8. the core of a wire
  9. a hair band
  10. heat insulator
  11. graphite
  12. False
  13. flexible
  14. an umbrella cover
  15. an insulator
  16. iron
  17. copper
  18. plastic-coated cloth
  19. an insulator
  20. a plug pin
  21. a raincoat
  22. a conductor
  23. an insulator
  24. plastic
  25. flexible
  26. flexible
  27. an oven glove
  28. steel
  29. False
  30. a conductor
  31. waterproof
  32. True
  33. transparent
  34. copper
  35. False
  36. brass
  37. transparent
  38. waterproof
  39. a boat hull
  40. False

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