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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 135 · 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 is the odd one out? (a) glass (b) aluminium (c) copper (d) brass
  2. 2.True or false: a cooking pot handle needs an electrical conductor. (a) True (b) False
  3. 3.🧱 Is graphite an electrical conductor or an insulator? (a) a conductor (b) an insulator
  4. 4.🧱 Which property matters most for a plug pin? (a) waterproof (b) transparent (c) heat insulator (d) electrical conductor
  5. 5.🔍 Which is the odd one out? (a) steel (b) iron (c) plastic (d) graphite
  6. 6.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  7. 7.True or false: a switch contact needs a heat insulator. (a) True (b) False
  8. 8.True or false: an oven glove needs a heat insulator. (a) False (b) True
  9. 9.True or false: a magnifier lens needs a transparent material. (a) False (b) True
  10. 10.Which of these needs a waterproof material? (a) a hair band (b) a car windscreen (c) a boat hull (d) a plug pin
  11. 11.🧱 Which material is best for the core of an electric wire? (a) copper (b) glass (c) wood (d) rubber
  12. 12.Which of these needs a heat insulator? (a) an umbrella cover (b) a spectacle lens (c) an oven glove (d) a roof sheet
  13. 13.True or false: a tea flask lining needs a flexible material. (a) True (b) False
  14. 14.Which of these needs a heat insulator? (a) a raincoat (b) a yoga mat (c) a hair band (d) a tea flask lining
  15. 15.🧱 Which property matters most for a boat hull? (a) heat insulator (b) electrical conductor (c) waterproof (d) flexible
  16. 16.🧱 Is dry wood an electrical conductor or an insulator? (a) an insulator (b) a conductor
  17. 17.🧱 Is rubber an electrical conductor or an insulator? (a) an insulator (b) a conductor
  18. 18.🧱 Is plastic an electrical conductor or an insulator? (a) an insulator (b) a conductor
  19. 19.Which of these needs a flexible material? (a) the core of a wire (b) a spectacle lens (c) a yoga mat (d) a tea flask lining
  20. 20.🧱 Which property matters most for a cooking pot handle? (a) transparent (b) waterproof (c) heat insulator (d) flexible
  21. 21.Which of these needs a transparent material? (a) a car seat belt (b) a water tank (c) a magnifier lens (d) a boat hull
  22. 22.🧱 Which property matters most for a switch contact? (a) transparent (b) heat insulator (c) electrical conductor (d) waterproof
  23. 23.Which of these needs an electrical conductor? (a) a plug pin (b) a raincoat (c) a roof sheet (d) a water tank
  24. 24.🧱 Which material is best for the bars inside concrete? (a) plastic (b) glass (c) rubber (d) steel
  25. 25.🔍 Which is the odd one out? (a) rubber (b) clay pottery (c) glass (d) graphite
  26. 26.🧱 Which material is best for a raincoat? (a) cardboard (b) paper (c) plastic-coated cloth (d) cotton wool
  27. 27.Which of these needs an electrical conductor? (a) an umbrella cover (b) the core of a wire (c) a spectacle lens (d) an oven glove
  28. 28.🧱 Which property matters most for a tea flask lining? (a) flexible (b) electrical conductor (c) waterproof (d) heat insulator
  29. 29.True or false: a car windscreen needs a transparent material. (a) True (b) False
  30. 30.🧱 Which property matters most for a raincoat? (a) electrical conductor (b) flexible (c) heat insulator (d) waterproof
  31. 31.Which of these needs a waterproof material? (a) a window pane (b) a yoga mat (c) a water tank (d) a spectacle lens
  32. 32.🧱 Is brass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  33. 33.True or false: a switch contact needs an electrical conductor. (a) False (b) True
  34. 34.True or false: a water tank needs a waterproof material. (a) True (b) False
  35. 35.True or false: a skipping rope needs a flexible material. (a) False (b) True
  36. 36.True or false: a cooking pot handle needs a heat insulator. (a) False (b) True
  37. 37.🔍 Which is the odd one out? (a) rubber (b) plastic (c) glass (d) iron
  38. 38.Which of these needs a waterproof material? (a) a plug pin (b) a raincoat (c) a switch contact (d) a yoga mat
  39. 39.🔍 Which is the odd one out? (a) glass (b) steel (c) dry wood (d) plastic
  40. 40.🧱 Which property matters most for the core of a wire? (a) waterproof (b) flexible (c) heat insulator (d) electrical conductor

Answer key

  1. glass
  2. False
  3. a conductor
  4. electrical conductor
  5. plastic
  6. a conductor
  7. False
  8. True
  9. True
  10. a boat hull
  11. copper
  12. an oven glove
  13. False
  14. a tea flask lining
  15. waterproof
  16. an insulator
  17. an insulator
  18. an insulator
  19. a yoga mat
  20. heat insulator
  21. a magnifier lens
  22. electrical conductor
  23. a plug pin
  24. steel
  25. graphite
  26. plastic-coated cloth
  27. the core of a wire
  28. heat insulator
  29. True
  30. waterproof
  31. a water tank
  32. a conductor
  33. True
  34. True
  35. True
  36. True
  37. iron
  38. a raincoat
  39. steel
  40. electrical conductor

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