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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 71 · 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 material is best for the bars inside concrete? (a) plastic (b) rubber (c) steel (d) glass
  2. 2.Which of these needs a waterproof material? (a) a magnifier lens (b) a cooking pot handle (c) a car windscreen (d) a water tank
  3. 3.🧱 Which property matters most for a plug pin? (a) electrical conductor (b) waterproof (c) flexible (d) heat insulator
  4. 4.🧱 Is rubber an electrical conductor or an insulator? (a) an insulator (b) a conductor
  5. 5.🧱 Which property matters most for a car windscreen? (a) heat insulator (b) waterproof (c) flexible (d) transparent
  6. 6.🧱 Which property matters most for a water tank? (a) transparent (b) waterproof (c) heat insulator (d) flexible
  7. 7.Which of these needs a waterproof material? (a) a car windscreen (b) a boat hull (c) a hair band (d) a skipping rope
  8. 8.🧱 Which property matters most for a switch contact? (a) heat insulator (b) waterproof (c) electrical conductor (d) flexible
  9. 9.True or false: a boat hull needs a waterproof material. (a) False (b) True
  10. 10.🧱 Which material is best for the core of an electric wire? (a) glass (b) wood (c) copper (d) rubber
  11. 11.🧱 Is plastic an electrical conductor or an insulator? (a) an insulator (b) a conductor
  12. 12.Which of these needs a flexible material? (a) a skipping rope (b) a water tank (c) the core of a wire (d) a car windscreen
  13. 13.🔍 Which is the odd one out? (a) steel (b) copper (c) brass (d) dry wood
  14. 14.🧱 Which property matters most for a magnifier lens? (a) electrical conductor (b) transparent (c) heat insulator (d) flexible
  15. 15.Which of these needs a flexible material? (a) a water tank (b) a hair band (c) a magnifier lens (d) a plug pin
  16. 16.True or false: a boat hull needs a transparent material. (a) True (b) False
  17. 17.True or false: a magnifier lens needs a flexible material. (a) False (b) True
  18. 18.True or false: a roof sheet needs an electrical conductor. (a) True (b) False
  19. 19.🧱 Is cotton cloth an electrical conductor or an insulator? (a) a conductor (b) an insulator
  20. 20.🧱 Is glass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  21. 21.🧱 Which property matters most for a tea flask lining? (a) heat insulator (b) electrical conductor (c) flexible (d) transparent
  22. 22.True or false: a window pane needs a waterproof material. (a) False (b) True
  23. 23.🔍 Which is the odd one out? (a) copper (b) plastic (c) cotton cloth (d) clay pottery
  24. 24.🔍 Which is the odd one out? (a) iron (b) rubber (c) brass (d) steel
  25. 25.Which of these needs a heat insulator? (a) a hair band (b) a switch contact (c) a cooking pot handle (d) a raincoat
  26. 26.🔍 Which is the odd one out? (a) aluminium (b) graphite (c) clay pottery (d) brass
  27. 27.Which of these needs a heat insulator? (a) the core of a wire (b) a water tank (c) a car windscreen (d) a tea flask lining
  28. 28.🧱 Which property matters most for a roof sheet? (a) transparent (b) flexible (c) heat insulator (d) waterproof
  29. 29.True or false: a window pane needs an electrical conductor. (a) True (b) False
  30. 30.🧱 Which property matters most for an umbrella cover? (a) heat insulator (b) electrical conductor (c) transparent (d) waterproof
  31. 31.🧱 Which material is best for a raincoat? (a) paper (b) plastic-coated cloth (c) cardboard (d) cotton wool
  32. 32.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  33. 33.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  34. 34.Which of these needs an electrical conductor? (a) an umbrella cover (b) a window pane (c) a water tank (d) a plug pin
  35. 35.🧱 Which property matters most for a cooking pot handle? (a) flexible (b) waterproof (c) heat insulator (d) transparent
  36. 36.🧱 Which property matters most for an oven glove? (a) transparent (b) heat insulator (c) electrical conductor (d) flexible
  37. 37.True or false: a boat hull needs a flexible material. (a) False (b) True
  38. 38.🧱 Is steel an electrical conductor or an insulator? (a) a conductor (b) an insulator
  39. 39.Which of these needs a transparent material? (a) a skipping rope (b) a switch contact (c) a water tank (d) a magnifier lens
  40. 40.🔍 Which is the odd one out? (a) iron (b) glass (c) steel (d) brass

Answer key

  1. steel
  2. a water tank
  3. electrical conductor
  4. an insulator
  5. transparent
  6. waterproof
  7. a boat hull
  8. electrical conductor
  9. True
  10. copper
  11. an insulator
  12. a skipping rope
  13. dry wood
  14. transparent
  15. a hair band
  16. False
  17. False
  18. False
  19. an insulator
  20. an insulator
  21. heat insulator
  22. False
  23. copper
  24. rubber
  25. a cooking pot handle
  26. clay pottery
  27. a tea flask lining
  28. waterproof
  29. False
  30. waterproof
  31. plastic-coated cloth
  32. a conductor
  33. a conductor
  34. a plug pin
  35. heat insulator
  36. heat insulator
  37. False
  38. a conductor
  39. a magnifier lens
  40. glass

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