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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 200 · 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 core of an electric wire? (a) glass (b) copper (c) wood (d) rubber
  2. 2.🧱 Is plastic an electrical conductor or an insulator? (a) an insulator (b) a conductor
  3. 3.🧱 Which property matters most for a tea flask lining? (a) transparent (b) electrical conductor (c) flexible (d) heat insulator
  4. 4.🧱 Which property matters most for a magnifier lens? (a) waterproof (b) transparent (c) electrical conductor (d) heat insulator
  5. 5.🧱 Which material is best for a cooking pot handle? (a) copper (b) wood or plastic (c) aluminium (d) iron
  6. 6.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  7. 7.🧱 Is graphite an electrical conductor or an insulator? (a) an insulator (b) a conductor
  8. 8.🧱 Is brass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  9. 9.True or false: a car seat belt needs a waterproof material. (a) True (b) False
  10. 10.Which of these needs a waterproof material? (a) a hair band (b) a car seat belt (c) a car windscreen (d) an umbrella cover
  11. 11.True or false: a raincoat needs a waterproof material. (a) True (b) False
  12. 12.True or false: a raincoat needs a flexible material. (a) False (b) True
  13. 13.🧱 Which material is best for a window pane? (a) wood (b) glass (c) steel (d) brick
  14. 14.🧱 Which property matters most for a plug pin? (a) electrical conductor (b) flexible (c) heat insulator (d) waterproof
  15. 15.🔍 Which is the odd one out? (a) iron (b) graphite (c) clay pottery (d) brass
  16. 16.Which of these needs a waterproof material? (a) a car windscreen (b) a raincoat (c) a tea flask lining (d) a skipping rope
  17. 17.🧱 Is copper an electrical conductor or an insulator? (a) a conductor (b) an insulator
  18. 18.True or false: the core of a wire needs a heat insulator. (a) True (b) False
  19. 19.🔍 Which is the odd one out? (a) cotton cloth (b) dry wood (c) copper (d) clay pottery
  20. 20.Which of these needs a flexible material? (a) a roof sheet (b) a hair band (c) a tea flask lining (d) a spectacle lens
  21. 21.True or false: a roof sheet needs a waterproof material. (a) True (b) False
  22. 22.🧱 Which property matters most for a raincoat? (a) waterproof (b) electrical conductor (c) heat insulator (d) transparent
  23. 23.🔍 Which is the odd one out? (a) aluminium (b) plastic (c) iron (d) steel
  24. 24.Which of these needs an electrical conductor? (a) a tea flask lining (b) a car windscreen (c) a plug pin (d) a window pane
  25. 25.🔍 Which is the odd one out? (a) glass (b) aluminium (c) cotton cloth (d) plastic
  26. 26.🧱 Which material is best for a raincoat? (a) cotton wool (b) plastic-coated cloth (c) cardboard (d) paper
  27. 27.🔍 Which is the odd one out? (a) cotton cloth (b) rubber (c) plastic (d) iron
  28. 28.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
  29. 29.🧱 Which property matters most for a yoga mat? (a) flexible (b) waterproof (c) heat insulator (d) electrical conductor
  30. 30.🔍 Which is the odd one out? (a) glass (b) brass (c) rubber (d) dry wood
  31. 31.Which of these needs a transparent material? (a) an umbrella cover (b) the core of a wire (c) a car windscreen (d) a switch contact
  32. 32.Which of these needs an electrical conductor? (a) a car seat belt (b) a boat hull (c) a skipping rope (d) the core of a wire
  33. 33.🧱 Which property matters most for a cooking pot handle? (a) transparent (b) heat insulator (c) waterproof (d) flexible
  34. 34.🧱 Which material is best for the bars inside concrete? (a) plastic (b) steel (c) glass (d) rubber
  35. 35.Which of these needs a flexible material? (a) the core of a wire (b) a yoga mat (c) a water tank (d) a boat hull
  36. 36.🔍 Which is the odd one out? (a) cotton cloth (b) brass (c) graphite (d) steel
  37. 37.True or false: a hair band needs an electrical conductor. (a) True (b) False
  38. 38.True or false: a raincoat needs an electrical conductor. (a) True (b) False
  39. 39.🧱 Which property matters most for a water tank? (a) electrical conductor (b) waterproof (c) transparent (d) flexible
  40. 40.🧱 Is glass an electrical conductor or an insulator? (a) an insulator (b) a conductor

Answer key

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

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