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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 986 · 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 of these needs a heat insulator? (a) a skipping rope (b) the core of a wire (c) a cooking pot handle (d) a roof sheet
  2. 2.🔍 Which is the odd one out? (a) cotton cloth (b) brass (c) glass (d) clay pottery
  3. 3.Which of these needs a flexible material? (a) a window pane (b) a skipping rope (c) a car windscreen (d) a water tank
  4. 4.🧱 Is glass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  5. 5.Which of these needs a heat insulator? (a) an umbrella cover (b) a skipping rope (c) a raincoat (d) a tea flask lining
  6. 6.Which of these needs a waterproof material? (a) a yoga mat (b) a roof sheet (c) a cooking pot handle (d) a hair band
  7. 7.🧱 Which property matters most for a yoga mat? (a) heat insulator (b) flexible (c) waterproof (d) transparent
  8. 8.🧱 Which property matters most for a spectacle lens? (a) flexible (b) transparent (c) electrical conductor (d) waterproof
  9. 9.🧱 Which property matters most for a skipping rope? (a) transparent (b) flexible (c) waterproof (d) electrical conductor
  10. 10.True or false: a raincoat needs a flexible material. (a) False (b) True
  11. 11.True or false: a cooking pot handle needs a heat insulator. (a) True (b) False
  12. 12.🧱 Is rubber an electrical conductor or an insulator? (a) a conductor (b) an insulator
  13. 13.Which of these needs a flexible material? (a) a water tank (b) a spectacle lens (c) a hair band (d) an umbrella cover
  14. 14.🧱 Which property matters most for a roof sheet? (a) flexible (b) waterproof (c) heat insulator (d) transparent
  15. 15.🔍 Which is the odd one out? (a) graphite (b) copper (c) glass (d) iron
  16. 16.🧱 Is graphite an electrical conductor or an insulator? (a) a conductor (b) an insulator
  17. 17.🔍 Which is the odd one out? (a) dry wood (b) copper (c) iron (d) graphite
  18. 18.🧱 Which property matters most for a boat hull? (a) electrical conductor (b) flexible (c) waterproof (d) transparent
  19. 19.🧱 Which property matters most for a car windscreen? (a) electrical conductor (b) heat insulator (c) transparent (d) flexible
  20. 20.🔍 Which is the odd one out? (a) copper (b) iron (c) brass (d) plastic
  21. 21.True or false: the core of a wire needs a heat insulator. (a) True (b) False
  22. 22.🧱 Which material is best for the core of an electric wire? (a) copper (b) wood (c) rubber (d) glass
  23. 23.Which of these needs a waterproof material? (a) a raincoat (b) an oven glove (c) a skipping rope (d) a switch contact
  24. 24.🧱 Which material is best for the bars inside concrete? (a) steel (b) rubber (c) plastic (d) glass
  25. 25.🧱 Which material is best for a raincoat? (a) cardboard (b) paper (c) cotton wool (d) plastic-coated cloth
  26. 26.True or false: an umbrella cover needs a flexible material. (a) True (b) False
  27. 27.Which of these needs a transparent material? (a) an oven glove (b) a yoga mat (c) a roof sheet (d) a window pane
  28. 28.🧱 Which property matters most for the core of a wire? (a) waterproof (b) flexible (c) electrical conductor (d) heat insulator
  29. 29.🧱 Which material is best for a cooking pot handle? (a) iron (b) copper (c) wood or plastic (d) aluminium
  30. 30.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
  31. 31.Which of these needs a flexible material? (a) a boat hull (b) a water tank (c) a yoga mat (d) the core of a wire
  32. 32.🧱 Is brass 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 property matters most for a cooking pot handle? (a) heat insulator (b) transparent (c) waterproof (d) flexible
  35. 35.🧱 Which property matters most for a raincoat? (a) flexible (b) waterproof (c) heat insulator (d) electrical conductor
  36. 36.Which of these needs a heat insulator? (a) a roof sheet (b) a water tank (c) an oven glove (d) a plug pin
  37. 37.True or false: a cooking pot handle needs an electrical conductor. (a) False (b) True
  38. 38.🔍 Which is the odd one out? (a) copper (b) plastic (c) rubber (d) cotton cloth
  39. 39.🧱 Is dry wood an electrical conductor or an insulator? (a) a conductor (b) an insulator
  40. 40.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor

Answer key

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

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