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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 467 · 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.🧱 Is dry wood an electrical conductor or an insulator? (a) a conductor (b) an insulator
  2. 2.🧱 Which property matters most for a skipping rope? (a) waterproof (b) electrical conductor (c) transparent (d) flexible
  3. 3.🧱 Is glass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  4. 4.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  5. 5.🧱 Which material is best for a window pane? (a) wood (b) steel (c) glass (d) brick
  6. 6.🧱 Which material is best for a raincoat? (a) plastic-coated cloth (b) cardboard (c) cotton wool (d) paper
  7. 7.🧱 Which property matters most for a raincoat? (a) transparent (b) heat insulator (c) waterproof (d) electrical conductor
  8. 8.🔍 Which is the odd one out? (a) rubber (b) plastic (c) dry wood (d) copper
  9. 9.🧱 Is graphite an electrical conductor or an insulator? (a) an insulator (b) a conductor
  10. 10.True or false: a window pane needs a transparent material. (a) True (b) False
  11. 11.True or false: a magnifier lens needs an electrical conductor. (a) False (b) True
  12. 12.🧱 Is brass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  13. 13.True or false: the core of a wire needs an electrical conductor. (a) False (b) True
  14. 14.True or false: a magnifier lens needs a transparent material. (a) False (b) True
  15. 15.Which of these needs a heat insulator? (a) an oven glove (b) a roof sheet (c) a raincoat (d) a plug pin
  16. 16.🔍 Which is the odd one out? (a) aluminium (b) iron (c) steel (d) rubber
  17. 17.True or false: a car windscreen needs a waterproof material. (a) False (b) True
  18. 18.🔍 Which is the odd one out? (a) glass (b) dry wood (c) rubber (d) aluminium
  19. 19.Which of these needs an electrical conductor? (a) a plug pin (b) an umbrella cover (c) a roof sheet (d) a hair band
  20. 20.🔍 Which is the odd one out? (a) cotton cloth (b) brass (c) steel (d) copper
  21. 21.🔍 Which is the odd one out? (a) brass (b) rubber (c) glass (d) cotton cloth
  22. 22.Which of these needs a waterproof material? (a) a yoga mat (b) a spectacle lens (c) a hair band (d) an umbrella cover
  23. 23.🧱 Which property matters most for a hair band? (a) transparent (b) waterproof (c) electrical conductor (d) flexible
  24. 24.True or false: a car windscreen needs a heat insulator. (a) False (b) True
  25. 25.🔍 Which is the odd one out? (a) aluminium (b) glass (c) iron (d) copper
  26. 26.Which of these needs a heat insulator? (a) a roof sheet (b) a cooking pot handle (c) a boat hull (d) a window pane
  27. 27.Which of these needs a transparent material? (a) a car windscreen (b) a car seat belt (c) the core of a wire (d) a yoga mat
  28. 28.🧱 Which property matters most for a boat hull? (a) flexible (b) electrical conductor (c) transparent (d) waterproof
  29. 29.🧱 Which property matters most for the core of a wire? (a) flexible (b) electrical conductor (c) waterproof (d) heat insulator
  30. 30.🧱 Which property matters most for a cooking pot handle? (a) waterproof (b) electrical conductor (c) heat insulator (d) flexible
  31. 31.🧱 Which material is best for the core of an electric wire? (a) wood (b) glass (c) rubber (d) copper
  32. 32.🧱 Which property matters most for a water tank? (a) heat insulator (b) flexible (c) waterproof (d) transparent
  33. 33.True or false: a spectacle lens needs a transparent material. (a) True (b) False
  34. 34.🧱 Which material is best for the bars inside concrete? (a) rubber (b) steel (c) plastic (d) glass
  35. 35.Which of these needs a transparent material? (a) the core of a wire (b) a water tank (c) a car seat belt (d) a spectacle lens
  36. 36.🧱 Which property matters most for an umbrella cover? (a) heat insulator (b) transparent (c) waterproof (d) flexible
  37. 37.True or false: a boat hull needs an electrical conductor. (a) False (b) True
  38. 38.True or false: a car windscreen needs a flexible material. (a) False (b) True
  39. 39.🔍 Which is the odd one out? (a) plastic (b) clay pottery (c) glass (d) graphite
  40. 40.🧱 Which property matters most for a switch contact? (a) transparent (b) flexible (c) heat insulator (d) electrical conductor

Answer key

  1. an insulator
  2. flexible
  3. an insulator
  4. a conductor
  5. glass
  6. plastic-coated cloth
  7. waterproof
  8. copper
  9. a conductor
  10. True
  11. False
  12. a conductor
  13. True
  14. True
  15. an oven glove
  16. rubber
  17. False
  18. aluminium
  19. a plug pin
  20. cotton cloth
  21. brass
  22. an umbrella cover
  23. flexible
  24. False
  25. glass
  26. a cooking pot handle
  27. a car windscreen
  28. waterproof
  29. electrical conductor
  30. heat insulator
  31. copper
  32. waterproof
  33. True
  34. steel
  35. a spectacle lens
  36. waterproof
  37. False
  38. False
  39. graphite
  40. electrical conductor

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