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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 204 · 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 material is best for the bars inside concrete? (a) plastic (b) rubber (c) glass (d) steel
  2. 2.🧱 Which property matters most for a switch contact? (a) heat insulator (b) electrical conductor (c) waterproof (d) transparent
  3. 3.🧱 Which property matters most for a skipping rope? (a) electrical conductor (b) transparent (c) heat insulator (d) flexible
  4. 4.Which of these needs a transparent material? (a) a spectacle lens (b) a hair band (c) a raincoat (d) a roof sheet
  5. 5.🧱 Which material is best for the core of an electric wire? (a) rubber (b) copper (c) wood (d) glass
  6. 6.🧱 Which property matters most for a water tank? (a) transparent (b) electrical conductor (c) heat insulator (d) waterproof
  7. 7.🧱 Which material is best for a cooking pot handle? (a) copper (b) iron (c) aluminium (d) wood or plastic
  8. 8.🔍 Which is the odd one out? (a) dry wood (b) cotton cloth (c) rubber (d) graphite
  9. 9.True or false: a spectacle lens needs an electrical conductor. (a) False (b) True
  10. 10.True or false: a cooking pot handle needs a flexible material. (a) False (b) True
  11. 11.Which of these needs a flexible material? (a) a hair band (b) a roof sheet (c) a cooking pot handle (d) a water tank
  12. 12.True or false: a tea flask lining needs a heat insulator. (a) False (b) True
  13. 13.Which of these needs a flexible material? (a) a car seat belt (b) a switch contact (c) a magnifier lens (d) a plug pin
  14. 14.True or false: a water tank needs a heat insulator. (a) False (b) True
  15. 15.🧱 Which property matters most for a raincoat? (a) heat insulator (b) waterproof (c) transparent (d) electrical conductor
  16. 16.Which of these needs a heat insulator? (a) a raincoat (b) a skipping rope (c) a hair band (d) a cooking pot handle
  17. 17.Which of these needs a transparent material? (a) a switch contact (b) a window pane (c) the core of a wire (d) a yoga mat
  18. 18.Which of these needs a waterproof material? (a) a hair band (b) an umbrella cover (c) a cooking pot handle (d) a switch contact
  19. 19.True or false: a switch contact needs an electrical conductor. (a) True (b) False
  20. 20.Which of these needs a transparent material? (a) a boat hull (b) a switch contact (c) a hair band (d) a magnifier lens
  21. 21.Which of these needs a heat insulator? (a) a water tank (b) a roof sheet (c) an oven glove (d) the core of a wire
  22. 22.True or false: a switch contact needs a transparent material. (a) True (b) False
  23. 23.🔍 Which is the odd one out? (a) brass (b) dry wood (c) rubber (d) cotton cloth
  24. 24.True or false: a spectacle lens needs a transparent material. (a) False (b) True
  25. 25.True or false: the core of a wire needs a transparent material. (a) True (b) False
  26. 26.Which of these needs an electrical conductor? (a) a spectacle lens (b) a car seat belt (c) an umbrella cover (d) the core of a wire
  27. 27.🧱 Is plastic an electrical conductor or an insulator? (a) an insulator (b) a conductor
  28. 28.🧱 Which property matters most for a roof sheet? (a) heat insulator (b) waterproof (c) flexible (d) electrical conductor
  29. 29.🧱 Which material is best for a raincoat? (a) cardboard (b) cotton wool (c) paper (d) plastic-coated cloth
  30. 30.🧱 Which property matters most for a window pane? (a) transparent (b) electrical conductor (c) heat insulator (d) flexible
  31. 31.True or false: the core of a wire needs an electrical conductor. (a) True (b) False
  32. 32.🧱 Which material is best for a window pane? (a) wood (b) glass (c) steel (d) brick
  33. 33.🔍 Which is the odd one out? (a) aluminium (b) glass (c) brass (d) graphite
  34. 34.🔍 Which is the odd one out? (a) iron (b) graphite (c) brass (d) rubber
  35. 35.🧱 Is graphite an electrical conductor or an insulator? (a) an insulator (b) a conductor
  36. 36.🧱 Is dry wood an electrical conductor or an insulator? (a) an insulator (b) a conductor
  37. 37.🔍 Which is the odd one out? (a) plastic (b) aluminium (c) copper (d) brass
  38. 38.🧱 Which property matters most for a boat hull? (a) heat insulator (b) waterproof (c) transparent (d) electrical conductor
  39. 39.🧱 Which property matters most for a car windscreen? (a) transparent (b) flexible (c) waterproof (d) electrical conductor
  40. 40.Which of these needs a flexible material? (a) a skipping rope (b) a spectacle lens (c) an oven glove (d) a water tank

Answer key

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

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