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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 344 · 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 is the odd one out? (a) graphite (b) dry wood (c) glass (d) rubber
  2. 2.🧱 Which property matters most for a raincoat? (a) transparent (b) electrical conductor (c) flexible (d) waterproof
  3. 3.Which of these needs a waterproof material? (a) a car windscreen (b) a skipping rope (c) a boat hull (d) a plug pin
  4. 4.Which of these needs an electrical conductor? (a) a cooking pot handle (b) a water tank (c) a magnifier lens (d) a plug pin
  5. 5.🧱 Which material is best for a raincoat? (a) cotton wool (b) plastic-coated cloth (c) paper (d) cardboard
  6. 6.🧱 Is dry wood an electrical conductor or an insulator? (a) an insulator (b) a conductor
  7. 7.🔍 Which is the odd one out? (a) iron (b) brass (c) clay pottery (d) aluminium
  8. 8.🔍 Which is the odd one out? (a) cotton cloth (b) steel (c) plastic (d) rubber
  9. 9.🧱 Which property matters most for a car windscreen? (a) waterproof (b) electrical conductor (c) heat insulator (d) transparent
  10. 10.🧱 Is cotton cloth an electrical conductor or an insulator? (a) a conductor (b) an insulator
  11. 11.🧱 Which material is best for the bars inside concrete? (a) plastic (b) glass (c) steel (d) rubber
  12. 12.Which of these needs a flexible material? (a) a car windscreen (b) a tea flask lining (c) an oven glove (d) a yoga mat
  13. 13.🧱 Is clay pottery an electrical conductor or an insulator? (a) a conductor (b) an insulator
  14. 14.Which of these needs a waterproof material? (a) a switch contact (b) a raincoat (c) a car seat belt (d) a tea flask lining
  15. 15.🧱 Is brass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  16. 16.🧱 Which property matters most for a tea flask lining? (a) electrical conductor (b) transparent (c) waterproof (d) heat insulator
  17. 17.🧱 Which property matters most for a window pane? (a) electrical conductor (b) flexible (c) transparent (d) waterproof
  18. 18.🧱 Which property matters most for a boat hull? (a) waterproof (b) electrical conductor (c) flexible (d) heat insulator
  19. 19.Which of these needs a transparent material? (a) a plug pin (b) a raincoat (c) a window pane (d) a tea flask lining
  20. 20.🔍 Which is the odd one out? (a) cotton cloth (b) copper (c) glass (d) rubber
  21. 21.🧱 Is glass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  22. 22.🧱 Which property matters most for a hair band? (a) transparent (b) electrical conductor (c) flexible (d) heat insulator
  23. 23.🧱 Which material is best for a window pane? (a) glass (b) wood (c) steel (d) brick
  24. 24.True or false: a magnifier lens needs a flexible material. (a) True (b) False
  25. 25.🧱 Is copper an electrical conductor or an insulator? (a) a conductor (b) an insulator
  26. 26.🔍 Which is the odd one out? (a) clay pottery (b) cotton cloth (c) glass (d) iron
  27. 27.🔍 Which is the odd one out? (a) clay pottery (b) cotton cloth (c) aluminium (d) rubber
  28. 28.🧱 Which property matters most for a roof sheet? (a) flexible (b) electrical conductor (c) waterproof (d) transparent
  29. 29.🧱 Is graphite an electrical conductor or an insulator? (a) a conductor (b) an insulator
  30. 30.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  31. 31.True or false: a car seat belt needs an electrical conductor. (a) True (b) False
  32. 32.Which of these needs a heat insulator? (a) a plug pin (b) a magnifier lens (c) a hair band (d) a cooking pot handle
  33. 33.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
  34. 34.Which of these needs a flexible material? (a) a boat hull (b) a water tank (c) a skipping rope (d) a window pane
  35. 35.🔍 Which is the odd one out? (a) dry wood (b) iron (c) graphite (d) aluminium
  36. 36.Which of these needs a heat insulator? (a) a yoga mat (b) a tea flask lining (c) a switch contact (d) a car seat belt
  37. 37.True or false: a plug pin needs an electrical conductor. (a) False (b) True
  38. 38.🧱 Which material is best for a cooking pot handle? (a) wood or plastic (b) aluminium (c) iron (d) copper
  39. 39.🧱 Which property matters most for a yoga mat? (a) waterproof (b) heat insulator (c) transparent (d) flexible
  40. 40.Which of these needs a heat insulator? (a) a car seat belt (b) a boat hull (c) the core of a wire (d) an oven glove

Answer key

  1. graphite
  2. waterproof
  3. a boat hull
  4. a plug pin
  5. plastic-coated cloth
  6. an insulator
  7. clay pottery
  8. steel
  9. transparent
  10. an insulator
  11. steel
  12. a yoga mat
  13. an insulator
  14. a raincoat
  15. a conductor
  16. heat insulator
  17. transparent
  18. waterproof
  19. a window pane
  20. copper
  21. an insulator
  22. flexible
  23. glass
  24. False
  25. a conductor
  26. iron
  27. aluminium
  28. waterproof
  29. a conductor
  30. a conductor
  31. False
  32. a cooking pot handle
  33. an insulator
  34. a skipping rope
  35. dry wood
  36. a tea flask lining
  37. True
  38. wood or plastic
  39. flexible
  40. an oven glove

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