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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 715 · 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 car seat belt (b) an umbrella cover (c) a raincoat (d) a car windscreen
  2. 2.Which of these needs an electrical conductor? (a) a cooking pot handle (b) a roof sheet (c) the core of a wire (d) a yoga mat
  3. 3.🧱 Which material is best for a window pane? (a) steel (b) brick (c) wood (d) glass
  4. 4.🧱 Is dry wood an electrical conductor or an insulator? (a) an insulator (b) a conductor
  5. 5.Which of these needs a flexible material? (a) a roof sheet (b) a boat hull (c) an umbrella cover (d) a yoga mat
  6. 6.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  7. 7.🧱 Which material is best for a raincoat? (a) cardboard (b) paper (c) cotton wool (d) plastic-coated cloth
  8. 8.🧱 Is graphite an electrical conductor or an insulator? (a) an insulator (b) a conductor
  9. 9.True or false: a window pane needs a transparent material. (a) False (b) True
  10. 10.Which of these needs a flexible material? (a) a hair band (b) a cooking pot handle (c) a raincoat (d) the core of a wire
  11. 11.True or false: a window pane needs a waterproof material. (a) True (b) False
  12. 12.🧱 Which property matters most for a switch contact? (a) electrical conductor (b) transparent (c) waterproof (d) flexible
  13. 13.True or false: a cooking pot handle needs a flexible material. (a) True (b) False
  14. 14.🔍 Which is the odd one out? (a) aluminium (b) cotton cloth (c) copper (d) steel
  15. 15.🔍 Which is the odd one out? (a) iron (b) aluminium (c) brass (d) glass
  16. 16.True or false: a hair band needs a flexible material. (a) False (b) True
  17. 17.🧱 Which property matters most for a roof sheet? (a) waterproof (b) transparent (c) flexible (d) electrical conductor
  18. 18.🧱 Which property matters most for the core of a wire? (a) transparent (b) waterproof (c) flexible (d) electrical conductor
  19. 19.Which of these needs an electrical conductor? (a) a switch contact (b) an umbrella cover (c) a tea flask lining (d) a raincoat
  20. 20.True or false: a raincoat needs a heat insulator. (a) False (b) True
  21. 21.🧱 Which property matters most for an oven glove? (a) flexible (b) heat insulator (c) waterproof (d) transparent
  22. 22.True or false: a plug pin needs a flexible material. (a) False (b) True
  23. 23.🧱 Which material is best for a cooking pot handle? (a) aluminium (b) iron (c) wood or plastic (d) copper
  24. 24.🧱 Is brass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  25. 25.🧱 Is clay pottery an electrical conductor or an insulator? (a) an insulator (b) a conductor
  26. 26.🧱 Which property matters most for a tea flask lining? (a) flexible (b) transparent (c) waterproof (d) heat insulator
  27. 27.🧱 Which material is best for the core of an electric wire? (a) rubber (b) copper (c) glass (d) wood
  28. 28.True or false: a car windscreen needs an electrical conductor. (a) True (b) False
  29. 29.True or false: a spectacle lens needs a transparent material. (a) False (b) True
  30. 30.True or false: a yoga mat needs a waterproof material. (a) True (b) False
  31. 31.Which of these needs a flexible material? (a) a plug pin (b) a spectacle lens (c) a car windscreen (d) a skipping rope
  32. 32.🧱 Which property matters most for a raincoat? (a) flexible (b) waterproof (c) electrical conductor (d) heat insulator
  33. 33.🔍 Which is the odd one out? (a) cotton cloth (b) steel (c) clay pottery (d) rubber
  34. 34.🧱 Which property matters most for a magnifier lens? (a) flexible (b) electrical conductor (c) transparent (d) waterproof
  35. 35.🔍 Which is the odd one out? (a) plastic (b) copper (c) cotton cloth (d) rubber
  36. 36.Which of these needs a heat insulator? (a) a spectacle lens (b) a cooking pot handle (c) a magnifier lens (d) a raincoat
  37. 37.🔍 Which is the odd one out? (a) graphite (b) copper (c) aluminium (d) plastic
  38. 38.True or false: a boat hull needs a transparent material. (a) True (b) False
  39. 39.🧱 Which property matters most for a water tank? (a) flexible (b) waterproof (c) transparent (d) heat insulator
  40. 40.🧱 Which material is best for the bars inside concrete? (a) plastic (b) glass (c) rubber (d) steel

Answer key

  1. a car windscreen
  2. the core of a wire
  3. glass
  4. an insulator
  5. a yoga mat
  6. a conductor
  7. plastic-coated cloth
  8. a conductor
  9. True
  10. a hair band
  11. False
  12. electrical conductor
  13. False
  14. cotton cloth
  15. glass
  16. True
  17. waterproof
  18. electrical conductor
  19. a switch contact
  20. False
  21. heat insulator
  22. False
  23. wood or plastic
  24. a conductor
  25. an insulator
  26. heat insulator
  27. copper
  28. False
  29. True
  30. False
  31. a skipping rope
  32. waterproof
  33. steel
  34. transparent
  35. copper
  36. a cooking pot handle
  37. plastic
  38. False
  39. waterproof
  40. steel

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