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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 741 · 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 yoga mat (b) a magnifier lens (c) a skipping rope (d) a raincoat
  2. 2.Which of these needs a waterproof material? (a) a raincoat (b) a tea flask lining (c) a car windscreen (d) a cooking pot handle
  3. 3.Which of these needs a heat insulator? (a) a cooking pot handle (b) a roof sheet (c) a window pane (d) a raincoat
  4. 4.🔍 Which is the odd one out? (a) rubber (b) graphite (c) dry wood (d) plastic
  5. 5.🧱 Which material is best for a cooking pot handle? (a) aluminium (b) wood or plastic (c) iron (d) copper
  6. 6.Which of these needs a waterproof material? (a) a window pane (b) a spectacle lens (c) a cooking pot handle (d) a roof sheet
  7. 7.🧱 Is copper an electrical conductor or an insulator? (a) a conductor (b) an insulator
  8. 8.True or false: the core of a wire needs a waterproof material. (a) True (b) False
  9. 9.Which of these needs a transparent material? (a) a raincoat (b) a window pane (c) a water tank (d) a tea flask lining
  10. 10.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  11. 11.🧱 Which property matters most for a roof sheet? (a) heat insulator (b) electrical conductor (c) transparent (d) waterproof
  12. 12.🧱 Which property matters most for a boat hull? (a) transparent (b) heat insulator (c) waterproof (d) flexible
  13. 13.True or false: a car windscreen needs a transparent material. (a) False (b) True
  14. 14.🔍 Which is the odd one out? (a) iron (b) rubber (c) graphite (d) copper
  15. 15.🧱 Which material is best for the core of an electric wire? (a) rubber (b) glass (c) wood (d) copper
  16. 16.True or false: a tea flask lining needs a waterproof material. (a) True (b) False
  17. 17.Which of these needs a waterproof material? (a) a yoga mat (b) a water tank (c) a hair band (d) the core of a wire
  18. 18.🧱 Which property matters most for a spectacle lens? (a) transparent (b) waterproof (c) electrical conductor (d) flexible
  19. 19.Which of these needs a transparent material? (a) a plug pin (b) an umbrella cover (c) a hair band (d) a car windscreen
  20. 20.True or false: a boat hull needs a waterproof material. (a) True (b) False
  21. 21.Which of these needs a waterproof material? (a) the core of a wire (b) an umbrella cover (c) a magnifier lens (d) a cooking pot handle
  22. 22.🧱 Is rubber an electrical conductor or an insulator? (a) a conductor (b) an insulator
  23. 23.🧱 Which property matters most for a plug pin? (a) transparent (b) waterproof (c) flexible (d) electrical conductor
  24. 24.🧱 Which material is best for a raincoat? (a) cardboard (b) paper (c) cotton wool (d) plastic-coated cloth
  25. 25.Which of these needs an electrical conductor? (a) a cooking pot handle (b) a tea flask lining (c) an oven glove (d) the core of a wire
  26. 26.🔍 Which is the odd one out? (a) iron (b) plastic (c) cotton cloth (d) rubber
  27. 27.Which of these needs a flexible material? (a) an umbrella cover (b) a boat hull (c) a hair band (d) a raincoat
  28. 28.🔍 Which is the odd one out? (a) copper (b) cotton cloth (c) aluminium (d) graphite
  29. 29.🧱 Which material is best for the bars inside concrete? (a) rubber (b) plastic (c) glass (d) steel
  30. 30.🔍 Which is the odd one out? (a) aluminium (b) steel (c) iron (d) glass
  31. 31.🔍 Which is the odd one out? (a) rubber (b) cotton cloth (c) dry wood (d) brass
  32. 32.True or false: a roof sheet needs a waterproof material. (a) True (b) False
  33. 33.🔍 Which is the odd one out? (a) cotton cloth (b) clay pottery (c) dry wood (d) steel
  34. 34.True or false: a window pane needs an electrical conductor. (a) True (b) False
  35. 35.True or false: a yoga mat needs a flexible material. (a) True (b) False
  36. 36.🧱 Is glass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  37. 37.🧱 Which property matters most for a yoga mat? (a) electrical conductor (b) flexible (c) transparent (d) heat insulator
  38. 38.🧱 Which material is best for a window pane? (a) glass (b) wood (c) brick (d) steel
  39. 39.🧱 Which property matters most for an oven glove? (a) waterproof (b) flexible (c) heat insulator (d) electrical conductor
  40. 40.🧱 Is brass an electrical conductor or an insulator? (a) an insulator (b) a conductor

Answer key

  1. a magnifier lens
  2. a raincoat
  3. a cooking pot handle
  4. graphite
  5. wood or plastic
  6. a roof sheet
  7. a conductor
  8. False
  9. a window pane
  10. a conductor
  11. waterproof
  12. waterproof
  13. True
  14. rubber
  15. copper
  16. False
  17. a water tank
  18. transparent
  19. a car windscreen
  20. True
  21. an umbrella cover
  22. an insulator
  23. electrical conductor
  24. plastic-coated cloth
  25. the core of a wire
  26. iron
  27. a hair band
  28. cotton cloth
  29. steel
  30. glass
  31. brass
  32. True
  33. steel
  34. False
  35. True
  36. an insulator
  37. flexible
  38. glass
  39. heat insulator
  40. a conductor

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