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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 971 · 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) iron (b) rubber (c) copper (d) steel
  2. 2.🧱 Which property matters most for a hair band? (a) heat insulator (b) transparent (c) waterproof (d) flexible
  3. 3.🧱 Which material is best for a raincoat? (a) cardboard (b) plastic-coated cloth (c) paper (d) cotton wool
  4. 4.🔍 Which is the odd one out? (a) dry wood (b) copper (c) rubber (d) plastic
  5. 5.🧱 Is glass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  6. 6.True or false: a plug pin needs an electrical conductor. (a) True (b) False
  7. 7.🔍 Which is the odd one out? (a) rubber (b) aluminium (c) plastic (d) cotton cloth
  8. 8.🧱 Which property matters most for a raincoat? (a) flexible (b) waterproof (c) heat insulator (d) transparent
  9. 9.🧱 Is cotton cloth an electrical conductor or an insulator? (a) an insulator (b) a conductor
  10. 10.🧱 Is dry wood an electrical conductor or an insulator? (a) an insulator (b) a conductor
  11. 11.🔍 Which is the odd one out? (a) dry wood (b) cotton cloth (c) steel (d) plastic
  12. 12.🧱 Which material is best for a cooking pot handle? (a) aluminium (b) copper (c) wood or plastic (d) iron
  13. 13.Which of these needs a heat insulator? (a) a skipping rope (b) a raincoat (c) a car seat belt (d) an oven glove
  14. 14.True or false: a hair band needs a waterproof material. (a) True (b) False
  15. 15.True or false: a skipping rope needs an electrical conductor. (a) True (b) False
  16. 16.True or false: a tea flask lining needs an electrical conductor. (a) True (b) False
  17. 17.Which of these needs a waterproof material? (a) a hair band (b) a water tank (c) a car windscreen (d) a skipping rope
  18. 18.Which of these needs a flexible material? (a) a window pane (b) a hair band (c) a cooking pot handle (d) a switch contact
  19. 19.🔍 Which is the odd one out? (a) aluminium (b) steel (c) graphite (d) clay pottery
  20. 20.True or false: a raincoat needs a waterproof material. (a) True (b) False
  21. 21.🧱 Which material is best for the core of an electric wire? (a) copper (b) wood (c) rubber (d) glass
  22. 22.🧱 Which property matters most for an umbrella cover? (a) waterproof (b) flexible (c) transparent (d) electrical conductor
  23. 23.🔍 Which is the odd one out? (a) iron (b) aluminium (c) brass (d) cotton cloth
  24. 24.True or false: a tea flask lining needs a transparent material. (a) False (b) True
  25. 25.True or false: a magnifier lens needs a transparent material. (a) False (b) True
  26. 26.🧱 Is aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
  27. 27.True or false: a boat hull needs a flexible material. (a) True (b) False
  28. 28.Which of these needs a heat insulator? (a) a cooking pot handle (b) a water tank (c) a yoga mat (d) a spectacle lens
  29. 29.🧱 Is iron an electrical conductor or an insulator? (a) a conductor (b) an insulator
  30. 30.True or false: the core of a wire needs an electrical conductor. (a) True (b) False
  31. 31.🧱 Is rubber an electrical conductor or an insulator? (a) a conductor (b) an insulator
  32. 32.True or false: a car windscreen needs a flexible material. (a) False (b) True
  33. 33.🧱 Which material is best for a window pane? (a) steel (b) wood (c) glass (d) brick
  34. 34.🧱 Which property matters most for a switch contact? (a) transparent (b) heat insulator (c) waterproof (d) electrical conductor
  35. 35.True or false: a skipping rope needs a flexible material. (a) False (b) True
  36. 36.True or false: a water tank needs a transparent material. (a) False (b) True
  37. 37.🧱 Which property matters most for a skipping rope? (a) waterproof (b) transparent (c) heat insulator (d) flexible
  38. 38.Which of these needs an electrical conductor? (a) a hair band (b) a magnifier lens (c) the core of a wire (d) an oven glove
  39. 39.True or false: a plug pin needs a waterproof material. (a) False (b) True
  40. 40.Which of these needs a heat insulator? (a) the core of a wire (b) a roof sheet (c) a boat hull (d) a tea flask lining

Answer key

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

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