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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 556 · 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 hair band? (a) electrical conductor (b) heat insulator (c) flexible (d) waterproof
  2. 2.🧱 Which material is best for the bars inside concrete? (a) glass (b) plastic (c) rubber (d) steel
  3. 3.🧱 Which property matters most for the core of a wire? (a) heat insulator (b) flexible (c) transparent (d) electrical conductor
  4. 4.🔍 Which is the odd one out? (a) graphite (b) copper (c) iron (d) dry wood
  5. 5.True or false: a roof sheet needs a waterproof material. (a) False (b) True
  6. 6.Which of these needs an electrical conductor? (a) a spectacle lens (b) a car windscreen (c) a yoga mat (d) the core of a wire
  7. 7.🧱 Which property matters most for a yoga mat? (a) waterproof (b) heat insulator (c) flexible (d) transparent
  8. 8.🧱 Which property matters most for a car windscreen? (a) electrical conductor (b) flexible (c) heat insulator (d) transparent
  9. 9.Which of these needs a waterproof material? (a) a magnifier lens (b) a cooking pot handle (c) a hair band (d) a water tank
  10. 10.🧱 Is rubber an electrical conductor or an insulator? (a) a conductor (b) an insulator
  11. 11.True or false: an umbrella cover needs a waterproof material. (a) False (b) True
  12. 12.🧱 Which material is best for a window pane? (a) brick (b) wood (c) glass (d) steel
  13. 13.🧱 Which material is best for a raincoat? (a) cotton wool (b) plastic-coated cloth (c) cardboard (d) paper
  14. 14.True or false: a raincoat needs a waterproof material. (a) True (b) False
  15. 15.Which of these needs a flexible material? (a) a tea flask lining (b) a switch contact (c) a hair band (d) a water tank
  16. 16.Which of these needs a heat insulator? (a) a raincoat (b) a car seat belt (c) a cooking pot handle (d) a skipping rope
  17. 17.🧱 Which property matters most for an oven glove? (a) heat insulator (b) transparent (c) waterproof (d) flexible
  18. 18.True or false: a hair band needs a waterproof material. (a) False (b) True
  19. 19.🔍 Which is the odd one out? (a) rubber (b) steel (c) dry wood (d) plastic
  20. 20.🧱 Which material is best for a cooking pot handle? (a) iron (b) aluminium (c) copper (d) wood or plastic
  21. 21.🧱 Which property matters most for a roof sheet? (a) heat insulator (b) waterproof (c) flexible (d) transparent
  22. 22.Which of these needs a flexible material? (a) a car seat belt (b) a plug pin (c) a water tank (d) the core of a wire
  23. 23.🧱 Is brass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  24. 24.🧱 Which property matters most for a water tank? (a) electrical conductor (b) waterproof (c) transparent (d) heat insulator
  25. 25.🔍 Which is the odd one out? (a) dry wood (b) glass (c) graphite (d) plastic
  26. 26.Which of these needs a transparent material? (a) a roof sheet (b) a spectacle lens (c) the core of a wire (d) a water tank
  27. 27.🔍 Which is the odd one out? (a) copper (b) graphite (c) plastic (d) aluminium
  28. 28.🧱 Which property matters most for a cooking pot handle? (a) waterproof (b) flexible (c) transparent (d) heat insulator
  29. 29.🧱 Is clay pottery an electrical conductor or an insulator? (a) a conductor (b) an insulator
  30. 30.🧱 Which property matters most for a window pane? (a) waterproof (b) transparent (c) electrical conductor (d) flexible
  31. 31.🧱 Is glass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  32. 32.True or false: an oven glove needs an electrical conductor. (a) False (b) True
  33. 33.🔍 Which is the odd one out? (a) aluminium (b) copper (c) iron (d) glass
  34. 34.🧱 Is cotton cloth an electrical conductor or an insulator? (a) an insulator (b) a conductor
  35. 35.Which of these needs a waterproof material? (a) a boat hull (b) a cooking pot handle (c) a magnifier lens (d) a yoga mat
  36. 36.Which of these needs a heat insulator? (a) a car windscreen (b) a skipping rope (c) a tea flask lining (d) a magnifier lens
  37. 37.🧱 Which material is best for the core of an electric wire? (a) glass (b) wood (c) rubber (d) copper
  38. 38.True or false: a plug pin needs an electrical conductor. (a) False (b) True
  39. 39.True or false: a plug pin needs a waterproof material. (a) True (b) False
  40. 40.🧱 Which property matters most for a skipping rope? (a) transparent (b) electrical conductor (c) waterproof (d) flexible

Answer key

  1. flexible
  2. steel
  3. electrical conductor
  4. dry wood
  5. True
  6. the core of a wire
  7. flexible
  8. transparent
  9. a water tank
  10. an insulator
  11. True
  12. glass
  13. plastic-coated cloth
  14. True
  15. a hair band
  16. a cooking pot handle
  17. heat insulator
  18. False
  19. steel
  20. wood or plastic
  21. waterproof
  22. a car seat belt
  23. a conductor
  24. waterproof
  25. graphite
  26. a spectacle lens
  27. plastic
  28. heat insulator
  29. an insulator
  30. transparent
  31. an insulator
  32. False
  33. glass
  34. an insulator
  35. a boat hull
  36. a tea flask lining
  37. copper
  38. True
  39. False
  40. flexible

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