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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 977 · 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 cooking pot handle? (a) heat insulator (b) waterproof (c) electrical conductor (d) transparent
  2. 2.True or false: a raincoat needs a transparent material. (a) False (b) True
  3. 3.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
  4. 4.🧱 Which property matters most for the core of a wire? (a) electrical conductor (b) heat insulator (c) waterproof (d) transparent
  5. 5.True or false: a spectacle lens needs a transparent material. (a) True (b) False
  6. 6.True or false: a skipping rope needs a flexible material. (a) False (b) True
  7. 7.True or false: an umbrella cover needs a heat insulator. (a) True (b) False
  8. 8.True or false: a raincoat needs an electrical conductor. (a) False (b) True
  9. 9.🧱 Which material is best for a window pane? (a) steel (b) glass (c) wood (d) brick
  10. 10.True or false: a switch contact needs a flexible material. (a) True (b) False
  11. 11.🧱 Which property matters most for a raincoat? (a) electrical conductor (b) flexible (c) waterproof (d) transparent
  12. 12.Which of these needs a waterproof material? (a) the core of a wire (b) a spectacle lens (c) a raincoat (d) a cooking pot handle
  13. 13.True or false: a water tank needs an electrical conductor. (a) False (b) True
  14. 14.🧱 Which property matters most for a window pane? (a) heat insulator (b) transparent (c) flexible (d) waterproof
  15. 15.🧱 Which property matters most for a switch contact? (a) waterproof (b) heat insulator (c) electrical conductor (d) transparent
  16. 16.🧱 Which property matters most for a roof sheet? (a) electrical conductor (b) flexible (c) waterproof (d) transparent
  17. 17.True or false: a plug pin needs an electrical conductor. (a) True (b) False
  18. 18.🔍 Which is the odd one out? (a) aluminium (b) iron (c) graphite (d) clay pottery
  19. 19.Which of these needs a flexible material? (a) a spectacle lens (b) an oven glove (c) a yoga mat (d) a window pane
  20. 20.Which of these needs a heat insulator? (a) an oven glove (b) a yoga mat (c) a car seat belt (d) a magnifier lens
  21. 21.🧱 Which material is best for a cooking pot handle? (a) copper (b) aluminium (c) iron (d) wood or plastic
  22. 22.🧱 Which material is best for the bars inside concrete? (a) steel (b) rubber (c) plastic (d) glass
  23. 23.Which of these needs a flexible material? (a) a skipping rope (b) a plug pin (c) the core of a wire (d) an umbrella cover
  24. 24.True or false: a window pane needs a heat insulator. (a) True (b) False
  25. 25.Which of these needs an electrical conductor? (a) a raincoat (b) the core of a wire (c) a car windscreen (d) a window pane
  26. 26.Which of these needs a waterproof material? (a) a skipping rope (b) a roof sheet (c) a car windscreen (d) a car seat belt
  27. 27.True or false: a yoga mat needs a heat insulator. (a) True (b) False
  28. 28.🔍 Which is the odd one out? (a) aluminium (b) copper (c) steel (d) rubber
  29. 29.🧱 Which material is best for the core of an electric wire? (a) copper (b) rubber (c) glass (d) wood
  30. 30.🧱 Is brass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  31. 31.🔍 Which is the odd one out? (a) plastic (b) glass (c) rubber (d) steel
  32. 32.🧱 Is steel an electrical conductor or an insulator? (a) a conductor (b) an insulator
  33. 33.🔍 Which is the odd one out? (a) clay pottery (b) rubber (c) plastic (d) aluminium
  34. 34.🔍 Which is the odd one out? (a) cotton cloth (b) clay pottery (c) plastic (d) graphite
  35. 35.🧱 Which material is best for a raincoat? (a) cardboard (b) cotton wool (c) plastic-coated cloth (d) paper
  36. 36.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  37. 37.🧱 Is cotton cloth an electrical conductor or an insulator? (a) a conductor (b) an insulator
  38. 38.🧱 Which property matters most for a skipping rope? (a) waterproof (b) heat insulator (c) flexible (d) transparent
  39. 39.True or false: a yoga mat needs a flexible material. (a) True (b) False
  40. 40.🧱 Is graphite an electrical conductor or an insulator? (a) an insulator (b) a conductor

Answer key

  1. heat insulator
  2. False
  3. a conductor
  4. electrical conductor
  5. True
  6. True
  7. False
  8. False
  9. glass
  10. False
  11. waterproof
  12. a raincoat
  13. False
  14. transparent
  15. electrical conductor
  16. waterproof
  17. True
  18. clay pottery
  19. a yoga mat
  20. an oven glove
  21. wood or plastic
  22. steel
  23. a skipping rope
  24. False
  25. the core of a wire
  26. a roof sheet
  27. False
  28. rubber
  29. copper
  30. a conductor
  31. steel
  32. a conductor
  33. aluminium
  34. graphite
  35. plastic-coated cloth
  36. a conductor
  37. an insulator
  38. flexible
  39. True
  40. a conductor

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