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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 486 · 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 a raincoat? (a) plastic-coated cloth (b) cotton wool (c) cardboard (d) paper
  2. 2.🧱 Which material is best for the bars inside concrete? (a) steel (b) plastic (c) glass (d) rubber
  3. 3.Which of these needs a transparent material? (a) an umbrella cover (b) a hair band (c) a cooking pot handle (d) a spectacle lens
  4. 4.🧱 Which property matters most for a skipping rope? (a) flexible (b) transparent (c) waterproof (d) heat insulator
  5. 5.🔍 Which is the odd one out? (a) graphite (b) iron (c) dry wood (d) steel
  6. 6.True or false: a tea flask lining needs a flexible material. (a) True (b) False
  7. 7.🧱 Which property matters most for a car windscreen? (a) electrical conductor (b) heat insulator (c) waterproof (d) transparent
  8. 8.Which of these needs a flexible material? (a) a switch contact (b) an umbrella cover (c) a hair band (d) a boat hull
  9. 9.🧱 Is dry wood an electrical conductor or an insulator? (a) a conductor (b) an insulator
  10. 10.True or false: a hair band needs a heat insulator. (a) False (b) True
  11. 11.🔍 Which is the odd one out? (a) iron (b) copper (c) glass (d) brass
  12. 12.🧱 Which material is best for a window pane? (a) brick (b) steel (c) wood (d) glass
  13. 13.🔍 Which is the odd one out? (a) graphite (b) copper (c) plastic (d) brass
  14. 14.🔍 Which is the odd one out? (a) cotton cloth (b) clay pottery (c) dry wood (d) brass
  15. 15.Which of these needs a waterproof material? (a) a car seat belt (b) a boat hull (c) a yoga mat (d) a magnifier lens
  16. 16.True or false: a magnifier lens needs a heat insulator. (a) False (b) True
  17. 17.🧱 Which property matters most for a car seat belt? (a) flexible (b) waterproof (c) electrical conductor (d) transparent
  18. 18.🧱 Which material is best for the core of an electric wire? (a) copper (b) rubber (c) glass (d) wood
  19. 19.🔍 Which is the odd one out? (a) rubber (b) steel (c) graphite (d) copper
  20. 20.🔍 Which is the odd one out? (a) dry wood (b) plastic (c) copper (d) glass
  21. 21.🧱 Which property matters most for a hair band? (a) transparent (b) heat insulator (c) electrical conductor (d) flexible
  22. 22.🔍 Which is the odd one out? (a) aluminium (b) rubber (c) dry wood (d) cotton cloth
  23. 23.True or false: an oven glove needs an electrical conductor. (a) False (b) True
  24. 24.Which of these needs a waterproof material? (a) a window pane (b) a roof sheet (c) a switch contact (d) a plug pin
  25. 25.🧱 Which material is best for a cooking pot handle? (a) aluminium (b) iron (c) wood or plastic (d) copper
  26. 26.True or false: a switch contact needs an electrical conductor. (a) False (b) True
  27. 27.🧱 Is rubber an electrical conductor or an insulator? (a) an insulator (b) a conductor
  28. 28.🧱 Which property matters most for a plug pin? (a) electrical conductor (b) flexible (c) heat insulator (d) waterproof
  29. 29.🧱 Which property matters most for a switch contact? (a) electrical conductor (b) waterproof (c) transparent (d) flexible
  30. 30.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
  31. 31.Which of these needs an electrical conductor? (a) an umbrella cover (b) a tea flask lining (c) a raincoat (d) a plug pin
  32. 32.🔍 Which is the odd one out? (a) graphite (b) iron (c) clay pottery (d) aluminium
  33. 33.🧱 Which property matters most for a roof sheet? (a) flexible (b) heat insulator (c) transparent (d) waterproof
  34. 34.True or false: a plug pin needs a flexible material. (a) False (b) True
  35. 35.🧱 Which property matters most for a cooking pot handle? (a) flexible (b) electrical conductor (c) waterproof (d) heat insulator
  36. 36.🧱 Which property matters most for a tea flask lining? (a) waterproof (b) transparent (c) heat insulator (d) electrical conductor
  37. 37.Which of these needs an electrical conductor? (a) a spectacle lens (b) a hair band (c) the core of a wire (d) a car windscreen
  38. 38.True or false: a spectacle lens needs a transparent material. (a) False (b) True
  39. 39.🔍 Which is the odd one out? (a) dry wood (b) rubber (c) graphite (d) cotton cloth
  40. 40.Which of these needs a transparent material? (a) a car seat belt (b) a yoga mat (c) a hair band (d) a car windscreen

Answer key

  1. plastic-coated cloth
  2. steel
  3. a spectacle lens
  4. flexible
  5. dry wood
  6. False
  7. transparent
  8. a hair band
  9. an insulator
  10. False
  11. glass
  12. glass
  13. plastic
  14. brass
  15. a boat hull
  16. False
  17. flexible
  18. copper
  19. rubber
  20. copper
  21. flexible
  22. aluminium
  23. False
  24. a roof sheet
  25. wood or plastic
  26. True
  27. an insulator
  28. electrical conductor
  29. electrical conductor
  30. an insulator
  31. a plug pin
  32. clay pottery
  33. waterproof
  34. False
  35. heat insulator
  36. heat insulator
  37. the core of a wire
  38. True
  39. graphite
  40. a car windscreen

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