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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 67 · 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 a cooking pot handle? (a) copper (b) aluminium (c) wood or plastic (d) iron
  2. 2.🧱 Which property matters most for a raincoat? (a) electrical conductor (b) waterproof (c) transparent (d) flexible
  3. 3.🧱 Which material is best for a raincoat? (a) cotton wool (b) cardboard (c) paper (d) plastic-coated cloth
  4. 4.True or false: a raincoat needs a flexible material. (a) False (b) True
  5. 5.True or false: a yoga mat needs a heat insulator. (a) False (b) True
  6. 6.🔍 Which is the odd one out? (a) aluminium (b) copper (c) iron (d) plastic
  7. 7.🧱 Which material is best for the core of an electric wire? (a) wood (b) copper (c) glass (d) rubber
  8. 8.🧱 Which property matters most for a car windscreen? (a) flexible (b) waterproof (c) transparent (d) heat insulator
  9. 9.🧱 Which property matters most for a yoga mat? (a) heat insulator (b) waterproof (c) flexible (d) transparent
  10. 10.🔍 Which is the odd one out? (a) aluminium (b) plastic (c) cotton cloth (d) clay pottery
  11. 11.🧱 Which property matters most for a water tank? (a) heat insulator (b) waterproof (c) electrical conductor (d) flexible
  12. 12.True or false: a roof sheet needs a flexible material. (a) False (b) True
  13. 13.Which of these needs a waterproof material? (a) a tea flask lining (b) a skipping rope (c) a hair band (d) a water tank
  14. 14.Which of these needs an electrical conductor? (a) a cooking pot handle (b) the core of a wire (c) a spectacle lens (d) a car seat belt
  15. 15.🧱 Which property matters most for a magnifier lens? (a) heat insulator (b) transparent (c) waterproof (d) electrical conductor
  16. 16.🧱 Is copper an electrical conductor or an insulator? (a) a conductor (b) an insulator
  17. 17.Which of these needs an electrical conductor? (a) a window pane (b) a magnifier lens (c) a plug pin (d) a skipping rope
  18. 18.🧱 Is brass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  19. 19.🧱 Is rubber an electrical conductor or an insulator? (a) a conductor (b) an insulator
  20. 20.🧱 Which property matters most for a switch contact? (a) flexible (b) heat insulator (c) electrical conductor (d) waterproof
  21. 21.True or false: a window pane needs a waterproof material. (a) True (b) False
  22. 22.🧱 Which material is best for the bars inside concrete? (a) plastic (b) glass (c) rubber (d) steel
  23. 23.🧱 Which property matters most for a spectacle lens? (a) transparent (b) electrical conductor (c) waterproof (d) flexible
  24. 24.Which of these needs a flexible material? (a) a boat hull (b) a magnifier lens (c) a hair band (d) a water tank
  25. 25.🧱 Is clay pottery an electrical conductor or an insulator? (a) an insulator (b) a conductor
  26. 26.🧱 Which property matters most for a skipping rope? (a) electrical conductor (b) flexible (c) waterproof (d) transparent
  27. 27.True or false: a tea flask lining needs a heat insulator. (a) True (b) False
  28. 28.Which of these needs a waterproof material? (a) a magnifier lens (b) a window pane (c) a car windscreen (d) a raincoat
  29. 29.Which of these needs a flexible material? (a) a raincoat (b) an oven glove (c) a switch contact (d) a car seat belt
  30. 30.🔍 Which is the odd one out? (a) plastic (b) dry wood (c) graphite (d) cotton cloth
  31. 31.🔍 Which is the odd one out? (a) copper (b) dry wood (c) iron (d) steel
  32. 32.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
  33. 33.🔍 Which is the odd one out? (a) iron (b) glass (c) aluminium (d) steel
  34. 34.True or false: a switch contact needs an electrical conductor. (a) True (b) False
  35. 35.Which of these needs a transparent material? (a) a skipping rope (b) a boat hull (c) a raincoat (d) a car windscreen
  36. 36.🔍 Which is the odd one out? (a) cotton cloth (b) brass (c) clay pottery (d) plastic
  37. 37.🔍 Which is the odd one out? (a) rubber (b) iron (c) plastic (d) cotton cloth
  38. 38.True or false: a magnifier lens needs a transparent material. (a) False (b) True
  39. 39.🧱 Which property matters most for the core of a wire? (a) electrical conductor (b) waterproof (c) flexible (d) transparent
  40. 40.Which of these needs a waterproof material? (a) a roof sheet (b) a window pane (c) a hair band (d) a tea flask lining

Answer key

  1. wood or plastic
  2. waterproof
  3. plastic-coated cloth
  4. False
  5. False
  6. plastic
  7. copper
  8. transparent
  9. flexible
  10. aluminium
  11. waterproof
  12. False
  13. a water tank
  14. the core of a wire
  15. transparent
  16. a conductor
  17. a plug pin
  18. a conductor
  19. an insulator
  20. electrical conductor
  21. False
  22. steel
  23. transparent
  24. a hair band
  25. an insulator
  26. flexible
  27. True
  28. a raincoat
  29. a car seat belt
  30. graphite
  31. dry wood
  32. an insulator
  33. glass
  34. True
  35. a car windscreen
  36. brass
  37. iron
  38. True
  39. electrical conductor
  40. a roof sheet

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