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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 964 · 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.True or false: a magnifier lens needs a waterproof material. (a) True (b) False
  2. 2.🧱 Which property matters most for a car windscreen? (a) heat insulator (b) electrical conductor (c) transparent (d) waterproof
  3. 3.🔍 Which is the odd one out? (a) graphite (b) copper (c) brass (d) cotton cloth
  4. 4.🧱 Which property matters most for an umbrella cover? (a) flexible (b) heat insulator (c) waterproof (d) electrical conductor
  5. 5.🧱 Which property matters most for a raincoat? (a) transparent (b) electrical conductor (c) flexible (d) waterproof
  6. 6.🧱 Which property matters most for an oven glove? (a) electrical conductor (b) heat insulator (c) flexible (d) transparent
  7. 7.🧱 Which material is best for a window pane? (a) wood (b) steel (c) brick (d) glass
  8. 8.🧱 Which property matters most for a window pane? (a) transparent (b) flexible (c) waterproof (d) electrical conductor
  9. 9.Which of these needs a heat insulator? (a) a spectacle lens (b) a plug pin (c) an oven glove (d) a window pane
  10. 10.Which of these needs a heat insulator? (a) a boat hull (b) a car windscreen (c) a tea flask lining (d) a skipping rope
  11. 11.🔍 Which is the odd one out? (a) graphite (b) glass (c) brass (d) steel
  12. 12.🧱 Is glass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  13. 13.True or false: a car seat belt needs a transparent material. (a) False (b) True
  14. 14.🔍 Which is the odd one out? (a) cotton cloth (b) dry wood (c) graphite (d) rubber
  15. 15.Which of these needs a heat insulator? (a) a car windscreen (b) a roof sheet (c) a water tank (d) a cooking pot handle
  16. 16.🔍 Which is the odd one out? (a) graphite (b) dry wood (c) iron (d) copper
  17. 17.Which of these needs a flexible material? (a) a cooking pot handle (b) a window pane (c) a switch contact (d) a car seat belt
  18. 18.🧱 Is iron an electrical conductor or an insulator? (a) a conductor (b) an insulator
  19. 19.🧱 Is brass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  20. 20.True or false: the core of a wire needs an electrical conductor. (a) False (b) True
  21. 21.Which of these needs a waterproof material? (a) a cooking pot handle (b) a tea flask lining (c) the core of a wire (d) a raincoat
  22. 22.Which of these needs an electrical conductor? (a) a hair band (b) the core of a wire (c) a cooking pot handle (d) a spectacle lens
  23. 23.🧱 Which property matters most for the core of a wire? (a) electrical conductor (b) flexible (c) waterproof (d) heat insulator
  24. 24.🧱 Which material is best for a raincoat? (a) plastic-coated cloth (b) cardboard (c) paper (d) cotton wool
  25. 25.Which of these needs an electrical conductor? (a) a boat hull (b) a switch contact (c) a roof sheet (d) a tea flask lining
  26. 26.🧱 Is clay pottery an electrical conductor or an insulator? (a) an insulator (b) a conductor
  27. 27.🧱 Is dry wood an electrical conductor or an insulator? (a) a conductor (b) an insulator
  28. 28.🔍 Which is the odd one out? (a) plastic (b) brass (c) clay pottery (d) dry wood
  29. 29.🧱 Which material is best for the bars inside concrete? (a) steel (b) glass (c) rubber (d) plastic
  30. 30.🧱 Is rubber an electrical conductor or an insulator? (a) a conductor (b) an insulator
  31. 31.True or false: a tea flask lining needs a flexible material. (a) False (b) True
  32. 32.🧱 Which property matters most for a plug pin? (a) flexible (b) transparent (c) electrical conductor (d) heat insulator
  33. 33.🧱 Which property matters most for a water tank? (a) electrical conductor (b) flexible (c) waterproof (d) heat insulator
  34. 34.🧱 Is cotton cloth an electrical conductor or an insulator? (a) an insulator (b) a conductor
  35. 35.🧱 Is steel an electrical conductor or an insulator? (a) a conductor (b) an insulator
  36. 36.Which of these needs a waterproof material? (a) a skipping rope (b) a car seat belt (c) a boat hull (d) a car windscreen
  37. 37.Which of these needs a flexible material? (a) a water tank (b) a yoga mat (c) a cooking pot handle (d) a roof sheet
  38. 38.True or false: a hair band needs a flexible material. (a) False (b) True
  39. 39.🧱 Is plastic an electrical conductor or an insulator? (a) an insulator (b) a conductor
  40. 40.🔍 Which is the odd one out? (a) graphite (b) rubber (c) steel (d) copper

Answer key

  1. False
  2. transparent
  3. cotton cloth
  4. waterproof
  5. waterproof
  6. heat insulator
  7. glass
  8. transparent
  9. an oven glove
  10. a tea flask lining
  11. glass
  12. an insulator
  13. False
  14. graphite
  15. a cooking pot handle
  16. dry wood
  17. a car seat belt
  18. a conductor
  19. a conductor
  20. True
  21. a raincoat
  22. the core of a wire
  23. electrical conductor
  24. plastic-coated cloth
  25. a switch contact
  26. an insulator
  27. an insulator
  28. brass
  29. steel
  30. an insulator
  31. False
  32. electrical conductor
  33. waterproof
  34. an insulator
  35. a conductor
  36. a boat hull
  37. a yoga mat
  38. True
  39. an insulator
  40. rubber

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