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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 287 · 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 cooking pot handle needs a waterproof material. (a) False (b) True
  2. 2.🧱 Which property matters most for the core of a wire? (a) electrical conductor (b) flexible (c) heat insulator (d) waterproof
  3. 3.🧱 Which property matters most for a switch contact? (a) heat insulator (b) flexible (c) electrical conductor (d) transparent
  4. 4.🧱 Which material is best for the bars inside concrete? (a) glass (b) steel (c) rubber (d) plastic
  5. 5.Which of these needs a heat insulator? (a) a cooking pot handle (b) a roof sheet (c) a boat hull (d) a skipping rope
  6. 6.True or false: a spectacle lens needs a transparent material. (a) True (b) False
  7. 7.🔍 Which is the odd one out? (a) steel (b) clay pottery (c) rubber (d) plastic
  8. 8.🔍 Which is the odd one out? (a) plastic (b) steel (c) brass (d) aluminium
  9. 9.🧱 Which material is best for a raincoat? (a) cardboard (b) plastic-coated cloth (c) cotton wool (d) paper
  10. 10.Which of these needs a flexible material? (a) a cooking pot handle (b) a roof sheet (c) an oven glove (d) a car seat belt
  11. 11.🧱 Which material is best for the core of an electric wire? (a) glass (b) rubber (c) wood (d) copper
  12. 12.Which of these needs a transparent material? (a) a switch contact (b) a window pane (c) a cooking pot handle (d) a car seat belt
  13. 13.🧱 Which property matters most for a window pane? (a) flexible (b) transparent (c) waterproof (d) heat insulator
  14. 14.🧱 Is clay pottery an electrical conductor or an insulator? (a) an insulator (b) a conductor
  15. 15.True or false: an oven glove needs a waterproof material. (a) False (b) True
  16. 16.Which of these needs a heat insulator? (a) a plug pin (b) a roof sheet (c) a boat hull (d) a tea flask lining
  17. 17.🧱 Which property matters most for an oven glove? (a) flexible (b) electrical conductor (c) transparent (d) heat insulator
  18. 18.🧱 Which property matters most for a boat hull? (a) transparent (b) waterproof (c) electrical conductor (d) flexible
  19. 19.Which of these needs a transparent material? (a) a cooking pot handle (b) a raincoat (c) an oven glove (d) a spectacle lens
  20. 20.True or false: a cooking pot handle needs a transparent material. (a) True (b) False
  21. 21.🧱 Which material is best for a cooking pot handle? (a) aluminium (b) copper (c) iron (d) wood or plastic
  22. 22.Which of these needs a waterproof material? (a) a switch contact (b) a plug pin (c) a hair band (d) a boat hull
  23. 23.🔍 Which is the odd one out? (a) graphite (b) copper (c) cotton cloth (d) aluminium
  24. 24.🧱 Is iron an electrical conductor or an insulator? (a) a conductor (b) an insulator
  25. 25.Which of these needs an electrical conductor? (a) a spectacle lens (b) the core of a wire (c) a car windscreen (d) a magnifier lens
  26. 26.True or false: a boat hull needs a transparent material. (a) False (b) True
  27. 27.Which of these needs a waterproof material? (a) a skipping rope (b) a raincoat (c) a spectacle lens (d) a cooking pot handle
  28. 28.🧱 Is graphite an electrical conductor or an insulator? (a) a conductor (b) an insulator
  29. 29.🧱 Which material is best for a window pane? (a) glass (b) steel (c) brick (d) wood
  30. 30.True or false: a raincoat needs a flexible material. (a) True (b) False
  31. 31.True or false: a cooking pot handle needs a flexible material. (a) False (b) True
  32. 32.True or false: a raincoat needs an electrical conductor. (a) False (b) True
  33. 33.🧱 Is steel an electrical conductor or an insulator? (a) a conductor (b) an insulator
  34. 34.Which of these needs a flexible material? (a) a spectacle lens (b) a skipping rope (c) a tea flask lining (d) a window pane
  35. 35.Which of these needs a waterproof material? (a) a switch contact (b) a water tank (c) the core of a wire (d) a tea flask lining
  36. 36.Which of these needs a flexible material? (a) a switch contact (b) a window pane (c) a hair band (d) a magnifier lens
  37. 37.🔍 Which is the odd one out? (a) cotton cloth (b) rubber (c) clay pottery (d) brass
  38. 38.True or false: a hair band needs a flexible material. (a) False (b) True
  39. 39.🧱 Which property matters most for an umbrella cover? (a) waterproof (b) heat insulator (c) electrical conductor (d) flexible
  40. 40.Which of these needs a waterproof material? (a) a skipping rope (b) a magnifier lens (c) an oven glove (d) an umbrella cover

Answer key

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

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