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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 668 · 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 property matters most for a window pane? (a) transparent (b) heat insulator (c) flexible (d) electrical conductor
  2. 2.🧱 Which property matters most for a car windscreen? (a) electrical conductor (b) heat insulator (c) flexible (d) transparent
  3. 3.🧱 Which property matters most for a yoga mat? (a) electrical conductor (b) heat insulator (c) transparent (d) flexible
  4. 4.🔍 Which is the odd one out? (a) cotton cloth (b) plastic (c) dry wood (d) steel
  5. 5.🧱 Which property matters most for a water tank? (a) heat insulator (b) flexible (c) waterproof (d) electrical conductor
  6. 6.Which of these needs a waterproof material? (a) a magnifier lens (b) a cooking pot handle (c) a hair band (d) an umbrella cover
  7. 7.True or false: a raincoat needs a waterproof material. (a) True (b) False
  8. 8.True or false: a switch contact needs an electrical conductor. (a) True (b) False
  9. 9.🧱 Which property matters most for a tea flask lining? (a) heat insulator (b) electrical conductor (c) flexible (d) transparent
  10. 10.🧱 Which property matters most for a spectacle lens? (a) heat insulator (b) transparent (c) waterproof (d) flexible
  11. 11.True or false: an oven glove needs a waterproof material. (a) True (b) False
  12. 12.Which of these needs a heat insulator? (a) a plug pin (b) an oven glove (c) an umbrella cover (d) a yoga mat
  13. 13.🧱 Is clay pottery an electrical conductor or an insulator? (a) a conductor (b) an insulator
  14. 14.True or false: a car seat belt needs a flexible material. (a) False (b) True
  15. 15.🧱 Which material is best for a raincoat? (a) cardboard (b) plastic-coated cloth (c) cotton wool (d) paper
  16. 16.Which of these needs a transparent material? (a) a window pane (b) an oven glove (c) a roof sheet (d) a tea flask lining
  17. 17.True or false: a spectacle lens needs a waterproof material. (a) False (b) True
  18. 18.Which of these needs a heat insulator? (a) a magnifier lens (b) a water tank (c) a cooking pot handle (d) a yoga mat
  19. 19.Which of these needs a transparent material? (a) a yoga mat (b) a tea flask lining (c) a car seat belt (d) a car windscreen
  20. 20.True or false: an oven glove needs an electrical conductor. (a) False (b) True
  21. 21.🔍 Which is the odd one out? (a) brass (b) iron (c) aluminium (d) clay pottery
  22. 22.True or false: a water tank needs a waterproof material. (a) False (b) True
  23. 23.🧱 Which property matters most for a car seat belt? (a) heat insulator (b) waterproof (c) electrical conductor (d) flexible
  24. 24.🔍 Which is the odd one out? (a) graphite (b) rubber (c) clay pottery (d) dry wood
  25. 25.True or false: a tea flask lining needs a heat insulator. (a) False (b) True
  26. 26.🧱 Which property matters most for a switch contact? (a) flexible (b) electrical conductor (c) waterproof (d) transparent
  27. 27.Which of these needs a transparent material? (a) a magnifier lens (b) an umbrella cover (c) a tea flask lining (d) a boat hull
  28. 28.🧱 Which property matters most for a roof sheet? (a) transparent (b) flexible (c) waterproof (d) heat insulator
  29. 29.🧱 Which property matters most for a cooking pot handle? (a) heat insulator (b) transparent (c) flexible (d) electrical conductor
  30. 30.Which of these needs a waterproof material? (a) a spectacle lens (b) a skipping rope (c) an oven glove (d) a water tank
  31. 31.🧱 Which material is best for a cooking pot handle? (a) copper (b) aluminium (c) iron (d) wood or plastic
  32. 32.🧱 Which property matters most for an oven glove? (a) waterproof (b) flexible (c) electrical conductor (d) heat insulator
  33. 33.🧱 Which property matters most for a raincoat? (a) electrical conductor (b) heat insulator (c) waterproof (d) flexible
  34. 34.🔍 Which is the odd one out? (a) plastic (b) glass (c) brass (d) cotton cloth
  35. 35.Which of these needs an electrical conductor? (a) an oven glove (b) a window pane (c) an umbrella cover (d) the core of a wire
  36. 36.🧱 Which material is best for the core of an electric wire? (a) wood (b) copper (c) rubber (d) glass
  37. 37.🔍 Which is the odd one out? (a) graphite (b) glass (c) copper (d) brass
  38. 38.True or false: the core of a wire needs an electrical conductor. (a) False (b) True
  39. 39.🧱 Which property matters most for a hair band? (a) waterproof (b) heat insulator (c) flexible (d) electrical conductor
  40. 40.🔍 Which is the odd one out? (a) steel (b) rubber (c) copper (d) iron

Answer key

  1. transparent
  2. transparent
  3. flexible
  4. steel
  5. waterproof
  6. an umbrella cover
  7. True
  8. True
  9. heat insulator
  10. transparent
  11. False
  12. an oven glove
  13. an insulator
  14. True
  15. plastic-coated cloth
  16. a window pane
  17. False
  18. a cooking pot handle
  19. a car windscreen
  20. False
  21. clay pottery
  22. True
  23. flexible
  24. graphite
  25. True
  26. electrical conductor
  27. a magnifier lens
  28. waterproof
  29. heat insulator
  30. a water tank
  31. wood or plastic
  32. heat insulator
  33. waterproof
  34. brass
  35. the core of a wire
  36. copper
  37. glass
  38. True
  39. flexible
  40. rubber

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