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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 237 · 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 flexible material? (a) a tea flask lining (b) a water tank (c) a yoga mat (d) a switch contact
  2. 2.True or false: the core of a wire needs a transparent material. (a) True (b) False
  3. 3.True or false: a window pane needs a transparent material. (a) True (b) False
  4. 4.True or false: a boat hull needs a heat insulator. (a) True (b) False
  5. 5.🧱 Which property matters most for a plug pin? (a) flexible (b) waterproof (c) transparent (d) electrical conductor
  6. 6.🔍 Which is the odd one out? (a) copper (b) clay pottery (c) graphite (d) iron
  7. 7.🧱 Is copper an electrical conductor or an insulator? (a) a conductor (b) an insulator
  8. 8.True or false: a plug pin needs an electrical conductor. (a) True (b) False
  9. 9.🧱 Which material is best for a raincoat? (a) cotton wool (b) paper (c) cardboard (d) plastic-coated cloth
  10. 10.🔍 Which is the odd one out? (a) rubber (b) dry wood (c) brass (d) cotton cloth
  11. 11.🧱 Which property matters most for an oven glove? (a) electrical conductor (b) transparent (c) flexible (d) heat insulator
  12. 12.🧱 Which property matters most for a skipping rope? (a) transparent (b) waterproof (c) electrical conductor (d) flexible
  13. 13.True or false: a tea flask lining needs a heat insulator. (a) False (b) True
  14. 14.Which of these needs a waterproof material? (a) a switch contact (b) a roof sheet (c) a cooking pot handle (d) a car seat belt
  15. 15.Which of these needs a flexible material? (a) a water tank (b) a magnifier lens (c) a cooking pot handle (d) a hair band
  16. 16.True or false: a hair band needs a flexible material. (a) True (b) False
  17. 17.🧱 Which property matters most for a window pane? (a) transparent (b) electrical conductor (c) flexible (d) waterproof
  18. 18.Which of these needs a flexible material? (a) an umbrella cover (b) a car seat belt (c) a cooking pot handle (d) a boat hull
  19. 19.🔍 Which is the odd one out? (a) dry wood (b) aluminium (c) iron (d) graphite
  20. 20.🧱 Is rubber an electrical conductor or an insulator? (a) an insulator (b) a conductor
  21. 21.🔍 Which is the odd one out? (a) glass (b) iron (c) dry wood (d) plastic
  22. 22.True or false: a magnifier lens needs a transparent material. (a) False (b) True
  23. 23.🧱 Is brass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  24. 24.Which of these needs a transparent material? (a) a car windscreen (b) a plug pin (c) a raincoat (d) a hair band
  25. 25.🧱 Is clay pottery an electrical conductor or an insulator? (a) a conductor (b) an insulator
  26. 26.🔍 Which is the odd one out? (a) copper (b) brass (c) rubber (d) steel
  27. 27.🧱 Which material is best for the core of an electric wire? (a) copper (b) glass (c) rubber (d) wood
  28. 28.Which of these needs a waterproof material? (a) a tea flask lining (b) an oven glove (c) a car seat belt (d) an umbrella cover
  29. 29.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
  30. 30.🧱 Which property matters most for a water tank? (a) electrical conductor (b) waterproof (c) flexible (d) transparent
  31. 31.🧱 Which property matters most for a car seat belt? (a) electrical conductor (b) flexible (c) heat insulator (d) waterproof
  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) plastic (b) graphite (c) rubber (d) clay pottery
  34. 34.🧱 Which property matters most for a cooking pot handle? (a) heat insulator (b) transparent (c) electrical conductor (d) waterproof
  35. 35.🧱 Is glass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  36. 36.True or false: a spectacle lens needs a transparent material. (a) False (b) True
  37. 37.🔍 Which is the odd one out? (a) cotton cloth (b) clay pottery (c) steel (d) rubber
  38. 38.🔍 Which is the odd one out? (a) steel (b) graphite (c) iron (d) plastic
  39. 39.🔍 Which is the odd one out? (a) clay pottery (b) rubber (c) copper (d) plastic
  40. 40.True or false: a roof sheet needs a waterproof material. (a) True (b) False

Answer key

  1. a yoga mat
  2. False
  3. True
  4. False
  5. electrical conductor
  6. clay pottery
  7. a conductor
  8. True
  9. plastic-coated cloth
  10. brass
  11. heat insulator
  12. flexible
  13. True
  14. a roof sheet
  15. a hair band
  16. True
  17. transparent
  18. a car seat belt
  19. dry wood
  20. an insulator
  21. iron
  22. True
  23. a conductor
  24. a car windscreen
  25. an insulator
  26. rubber
  27. copper
  28. an umbrella cover
  29. a conductor
  30. waterproof
  31. flexible
  32. glass
  33. graphite
  34. heat insulator
  35. an insulator
  36. True
  37. steel
  38. plastic
  39. copper
  40. True

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