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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 591 · 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 an electrical conductor? (a) a cooking pot handle (b) a switch contact (c) a roof sheet (d) a car windscreen
  2. 2.Which of these needs a waterproof material? (a) a raincoat (b) a car windscreen (c) a yoga mat (d) a car seat belt
  3. 3.🧱 Is aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
  4. 4.🧱 Which material is best for the core of an electric wire? (a) copper (b) rubber (c) glass (d) wood
  5. 5.🧱 Which property matters most for a raincoat? (a) transparent (b) electrical conductor (c) heat insulator (d) waterproof
  6. 6.🧱 Which property matters most for a car seat belt? (a) transparent (b) flexible (c) electrical conductor (d) waterproof
  7. 7.🧱 Which material is best for a window pane? (a) brick (b) wood (c) steel (d) glass
  8. 8.True or false: a hair band needs a heat insulator. (a) True (b) False
  9. 9.🧱 Which property matters most for a switch contact? (a) flexible (b) electrical conductor (c) waterproof (d) transparent
  10. 10.🧱 Which material is best for the bars inside concrete? (a) plastic (b) glass (c) steel (d) rubber
  11. 11.🧱 Which property matters most for a yoga mat? (a) transparent (b) waterproof (c) electrical conductor (d) flexible
  12. 12.🧱 Which property matters most for a hair band? (a) transparent (b) heat insulator (c) flexible (d) waterproof
  13. 13.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  14. 14.Which of these needs a flexible material? (a) a cooking pot handle (b) a boat hull (c) a water tank (d) a hair band
  15. 15.Which of these needs a flexible material? (a) the core of a wire (b) a car windscreen (c) a skipping rope (d) a roof sheet
  16. 16.🧱 Which property matters most for a water tank? (a) transparent (b) heat insulator (c) electrical conductor (d) waterproof
  17. 17.🔍 Which is the odd one out? (a) plastic (b) copper (c) rubber (d) dry wood
  18. 18.🧱 Is graphite an electrical conductor or an insulator? (a) a conductor (b) an insulator
  19. 19.True or false: a skipping rope needs an electrical conductor. (a) True (b) False
  20. 20.True or false: a raincoat needs a transparent material. (a) False (b) True
  21. 21.True or false: a spectacle lens needs an electrical conductor. (a) False (b) True
  22. 22.🧱 Which material is best for a raincoat? (a) cotton wool (b) paper (c) cardboard (d) plastic-coated cloth
  23. 23.Which of these needs a waterproof material? (a) a car seat belt (b) a hair band (c) a roof sheet (d) a plug pin
  24. 24.🔍 Which is the odd one out? (a) copper (b) iron (c) cotton cloth (d) aluminium
  25. 25.🧱 Which property matters most for a roof sheet? (a) waterproof (b) transparent (c) heat insulator (d) flexible
  26. 26.True or false: an oven glove needs a flexible material. (a) False (b) True
  27. 27.🔍 Which is the odd one out? (a) clay pottery (b) copper (c) graphite (d) brass
  28. 28.🧱 Which property matters most for a spectacle lens? (a) heat insulator (b) electrical conductor (c) transparent (d) flexible
  29. 29.🧱 Which property matters most for a plug pin? (a) flexible (b) transparent (c) waterproof (d) electrical conductor
  30. 30.🧱 Which material is best for a cooking pot handle? (a) copper (b) iron (c) wood or plastic (d) aluminium
  31. 31.Which of these needs a flexible material? (a) an umbrella cover (b) a switch contact (c) a car seat belt (d) a magnifier lens
  32. 32.🧱 Which property matters most for a magnifier lens? (a) heat insulator (b) transparent (c) waterproof (d) flexible
  33. 33.🧱 Which property matters most for a boat hull? (a) heat insulator (b) waterproof (c) flexible (d) transparent
  34. 34.True or false: a plug pin needs an electrical conductor. (a) False (b) True
  35. 35.Which of these needs a waterproof material? (a) a skipping rope (b) a switch contact (c) a boat hull (d) the core of a wire
  36. 36.🔍 Which is the odd one out? (a) graphite (b) plastic (c) cotton cloth (d) rubber
  37. 37.🧱 Is rubber an electrical conductor or an insulator? (a) a conductor (b) an insulator
  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) iron (b) steel (c) copper (d) dry wood
  40. 40.🔍 Which is the odd one out? (a) aluminium (b) rubber (c) plastic (d) glass

Answer key

  1. a switch contact
  2. a raincoat
  3. a conductor
  4. copper
  5. waterproof
  6. flexible
  7. glass
  8. False
  9. electrical conductor
  10. steel
  11. flexible
  12. flexible
  13. a conductor
  14. a hair band
  15. a skipping rope
  16. waterproof
  17. copper
  18. a conductor
  19. False
  20. False
  21. False
  22. plastic-coated cloth
  23. a roof sheet
  24. cotton cloth
  25. waterproof
  26. False
  27. clay pottery
  28. transparent
  29. electrical conductor
  30. wood or plastic
  31. a car seat belt
  32. transparent
  33. waterproof
  34. True
  35. a boat hull
  36. graphite
  37. an insulator
  38. True
  39. dry wood
  40. aluminium

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