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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 261 · 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 waterproof material? (a) a car windscreen (b) a plug pin (c) a yoga mat (d) a boat hull
  2. 2.🧱 Which material is best for the core of an electric wire? (a) copper (b) glass (c) wood (d) rubber
  3. 3.True or false: a spectacle lens needs a heat insulator. (a) False (b) True
  4. 4.🧱 Which material is best for a window pane? (a) steel (b) wood (c) brick (d) glass
  5. 5.Which of these needs a heat insulator? (a) a roof sheet (b) a magnifier lens (c) a yoga mat (d) a cooking pot handle
  6. 6.True or false: a boat hull needs a transparent material. (a) True (b) False
  7. 7.🔍 Which is the odd one out? (a) glass (b) copper (c) steel (d) graphite
  8. 8.🧱 Which property matters most for a hair band? (a) flexible (b) waterproof (c) transparent (d) electrical conductor
  9. 9.🧱 Which material is best for the bars inside concrete? (a) glass (b) steel (c) plastic (d) rubber
  10. 10.Which of these needs a heat insulator? (a) a water tank (b) a hair band (c) the core of a wire (d) a tea flask lining
  11. 11.🧱 Which property matters most for a roof sheet? (a) transparent (b) heat insulator (c) waterproof (d) electrical conductor
  12. 12.True or false: a yoga mat needs a flexible material. (a) False (b) True
  13. 13.🧱 Is graphite an electrical conductor or an insulator? (a) an insulator (b) a conductor
  14. 14.Which of these needs a transparent material? (a) an umbrella cover (b) a car seat belt (c) an oven glove (d) a window pane
  15. 15.🧱 Which material is best for a raincoat? (a) cotton wool (b) paper (c) plastic-coated cloth (d) cardboard
  16. 16.🔍 Which is the odd one out? (a) rubber (b) clay pottery (c) brass (d) dry wood
  17. 17.True or false: a raincoat needs a transparent material. (a) False (b) True
  18. 18.🧱 Which property matters most for a water tank? (a) flexible (b) transparent (c) waterproof (d) electrical conductor
  19. 19.🔍 Which is the odd one out? (a) dry wood (b) steel (c) glass (d) cotton cloth
  20. 20.🧱 Which property matters most for a cooking pot handle? (a) transparent (b) electrical conductor (c) heat insulator (d) waterproof
  21. 21.True or false: a car windscreen needs an electrical conductor. (a) False (b) True
  22. 22.True or false: a cooking pot handle needs a heat insulator. (a) True (b) False
  23. 23.🧱 Is steel an electrical conductor or an insulator? (a) a conductor (b) an insulator
  24. 24.Which of these needs a flexible material? (a) a hair band (b) an oven glove (c) an umbrella cover (d) a cooking pot handle
  25. 25.🔍 Which is the odd one out? (a) brass (b) iron (c) plastic (d) graphite
  26. 26.🔍 Which is the odd one out? (a) graphite (b) rubber (c) dry wood (d) plastic
  27. 27.True or false: a magnifier lens needs a flexible material. (a) True (b) False
  28. 28.True or false: a boat hull needs a waterproof material. (a) True (b) False
  29. 29.Which of these needs a flexible material? (a) a plug pin (b) a skipping rope (c) a roof sheet (d) a tea flask lining
  30. 30.Which of these needs an electrical conductor? (a) a switch contact (b) a raincoat (c) a cooking pot handle (d) a roof sheet
  31. 31.🧱 Which property matters most for the core of a wire? (a) electrical conductor (b) flexible (c) transparent (d) waterproof
  32. 32.True or false: a boat hull needs a heat insulator. (a) False (b) True
  33. 33.🧱 Which property matters most for a switch contact? (a) flexible (b) electrical conductor (c) heat insulator (d) waterproof
  34. 34.🧱 Is rubber an electrical conductor or an insulator? (a) a conductor (b) an insulator
  35. 35.🧱 Which property matters most for a car seat belt? (a) electrical conductor (b) waterproof (c) transparent (d) flexible
  36. 36.Which of these needs an electrical conductor? (a) a plug pin (b) an umbrella cover (c) a spectacle lens (d) a yoga mat
  37. 37.True or false: a window pane needs a waterproof material. (a) False (b) True
  38. 38.True or false: a skipping rope needs a flexible material. (a) True (b) False
  39. 39.🧱 Which property matters most for a raincoat? (a) transparent (b) electrical conductor (c) flexible (d) waterproof
  40. 40.Which of these needs a waterproof material? (a) a water tank (b) a car seat belt (c) a yoga mat (d) a magnifier lens

Answer key

  1. a boat hull
  2. copper
  3. False
  4. glass
  5. a cooking pot handle
  6. False
  7. glass
  8. flexible
  9. steel
  10. a tea flask lining
  11. waterproof
  12. True
  13. a conductor
  14. a window pane
  15. plastic-coated cloth
  16. brass
  17. False
  18. waterproof
  19. steel
  20. heat insulator
  21. False
  22. True
  23. a conductor
  24. a hair band
  25. plastic
  26. graphite
  27. False
  28. True
  29. a skipping rope
  30. a switch contact
  31. electrical conductor
  32. False
  33. electrical conductor
  34. an insulator
  35. flexible
  36. a plug pin
  37. False
  38. True
  39. waterproof
  40. a water tank

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