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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 858 · 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) copper (b) wood (c) glass (d) rubber
  2. 2.🧱 Is brass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  3. 3.🔍 Which is the odd one out? (a) graphite (b) brass (c) iron (d) glass
  4. 4.🧱 Which property matters most for a yoga mat? (a) flexible (b) waterproof (c) heat insulator (d) electrical conductor
  5. 5.🧱 Which property matters most for a plug pin? (a) waterproof (b) heat insulator (c) flexible (d) electrical conductor
  6. 6.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
  7. 7.🧱 Which property matters most for a roof sheet? (a) transparent (b) heat insulator (c) flexible (d) waterproof
  8. 8.🧱 Which property matters most for a tea flask lining? (a) waterproof (b) electrical conductor (c) heat insulator (d) flexible
  9. 9.Which of these needs a heat insulator? (a) a water tank (b) a skipping rope (c) a boat hull (d) an oven glove
  10. 10.🧱 Which material is best for the bars inside concrete? (a) rubber (b) glass (c) steel (d) plastic
  11. 11.Which of these needs a flexible material? (a) the core of a wire (b) an umbrella cover (c) a car seat belt (d) a car windscreen
  12. 12.🧱 Is clay pottery an electrical conductor or an insulator? (a) a conductor (b) an insulator
  13. 13.🔍 Which is the odd one out? (a) steel (b) cotton cloth (c) copper (d) iron
  14. 14.🔍 Which is the odd one out? (a) glass (b) rubber (c) graphite (d) clay pottery
  15. 15.Which of these needs an electrical conductor? (a) a cooking pot handle (b) a window pane (c) a raincoat (d) a plug pin
  16. 16.🧱 Which property matters most for a window pane? (a) waterproof (b) heat insulator (c) electrical conductor (d) transparent
  17. 17.🧱 Which property matters most for a cooking pot handle? (a) waterproof (b) electrical conductor (c) flexible (d) heat insulator
  18. 18.Which of these needs a waterproof material? (a) a skipping rope (b) the core of a wire (c) a boat hull (d) a hair band
  19. 19.🧱 Which material is best for a raincoat? (a) cardboard (b) plastic-coated cloth (c) cotton wool (d) paper
  20. 20.True or false: a car windscreen needs a transparent material. (a) False (b) True
  21. 21.True or false: a tea flask lining needs a transparent material. (a) True (b) False
  22. 22.🧱 Is glass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  23. 23.🔍 Which is the odd one out? (a) plastic (b) dry wood (c) copper (d) rubber
  24. 24.True or false: a magnifier lens needs a heat insulator. (a) True (b) False
  25. 25.🧱 Which property matters most for a boat hull? (a) heat insulator (b) waterproof (c) electrical conductor (d) transparent
  26. 26.Which of these needs an electrical conductor? (a) a switch contact (b) a magnifier lens (c) a hair band (d) an oven glove
  27. 27.🧱 Which material is best for a cooking pot handle? (a) aluminium (b) copper (c) iron (d) wood or plastic
  28. 28.True or false: a tea flask lining needs a heat insulator. (a) True (b) False
  29. 29.True or false: a skipping rope needs a flexible material. (a) False (b) True
  30. 30.Which of these needs a waterproof material? (a) the core of a wire (b) a magnifier lens (c) a raincoat (d) a car windscreen
  31. 31.Which of these needs a flexible material? (a) a water tank (b) a raincoat (c) a hair band (d) a window pane
  32. 32.🧱 Which property matters most for a raincoat? (a) electrical conductor (b) waterproof (c) flexible (d) transparent
  33. 33.🧱 Is graphite an electrical conductor or an insulator? (a) an insulator (b) a conductor
  34. 34.🧱 Which material is best for a window pane? (a) brick (b) steel (c) glass (d) wood
  35. 35.🧱 Which property matters most for a spectacle lens? (a) waterproof (b) electrical conductor (c) transparent (d) flexible
  36. 36.🔍 Which is the odd one out? (a) brass (b) copper (c) iron (d) rubber
  37. 37.🧱 Which property matters most for a skipping rope? (a) waterproof (b) flexible (c) transparent (d) electrical conductor
  38. 38.🔍 Which is the odd one out? (a) iron (b) cotton cloth (c) glass (d) rubber
  39. 39.True or false: a yoga mat needs a transparent material. (a) True (b) False
  40. 40.🔍 Which is the odd one out? (a) steel (b) copper (c) plastic (d) aluminium

Answer key

  1. copper
  2. a conductor
  3. glass
  4. flexible
  5. electrical conductor
  6. an insulator
  7. waterproof
  8. heat insulator
  9. an oven glove
  10. steel
  11. a car seat belt
  12. an insulator
  13. cotton cloth
  14. graphite
  15. a plug pin
  16. transparent
  17. heat insulator
  18. a boat hull
  19. plastic-coated cloth
  20. True
  21. False
  22. an insulator
  23. copper
  24. False
  25. waterproof
  26. a switch contact
  27. wood or plastic
  28. True
  29. True
  30. a raincoat
  31. a hair band
  32. waterproof
  33. a conductor
  34. glass
  35. transparent
  36. rubber
  37. flexible
  38. iron
  39. False
  40. plastic

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