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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 424 · 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 is the odd one out? (a) copper (b) graphite (c) rubber (d) aluminium
  2. 2.🧱 Which property matters most for a switch contact? (a) flexible (b) heat insulator (c) waterproof (d) electrical conductor
  3. 3.🧱 Which material is best for a raincoat? (a) paper (b) cotton wool (c) cardboard (d) plastic-coated cloth
  4. 4.🔍 Which is the odd one out? (a) steel (b) iron (c) clay pottery (d) copper
  5. 5.Which of these needs a transparent material? (a) a window pane (b) a cooking pot handle (c) a switch contact (d) a skipping rope
  6. 6.🔍 Which is the odd one out? (a) graphite (b) glass (c) plastic (d) clay pottery
  7. 7.Which of these needs a flexible material? (a) a raincoat (b) a tea flask lining (c) a switch contact (d) a car seat belt
  8. 8.Which of these needs an electrical conductor? (a) a car windscreen (b) an umbrella cover (c) a boat hull (d) a switch contact
  9. 9.🧱 Which property matters most for a spectacle lens? (a) transparent (b) waterproof (c) flexible (d) heat insulator
  10. 10.True or false: a plug pin needs an electrical conductor. (a) False (b) True
  11. 11.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
  12. 12.🧱 Which material is best for a cooking pot handle? (a) wood or plastic (b) iron (c) copper (d) aluminium
  13. 13.🧱 Is rubber an electrical conductor or an insulator? (a) a conductor (b) an insulator
  14. 14.🧱 Is brass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  15. 15.True or false: a car windscreen needs a flexible material. (a) True (b) False
  16. 16.True or false: a roof sheet needs a waterproof material. (a) True (b) False
  17. 17.Which of these needs a heat insulator? (a) a raincoat (b) an oven glove (c) a yoga mat (d) a plug pin
  18. 18.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
  19. 19.🔍 Which is the odd one out? (a) clay pottery (b) cotton cloth (c) iron (d) glass
  20. 20.🧱 Which property matters most for a yoga mat? (a) flexible (b) transparent (c) heat insulator (d) waterproof
  21. 21.True or false: a plug pin needs a flexible material. (a) False (b) True
  22. 22.🧱 Which property matters most for a car windscreen? (a) flexible (b) waterproof (c) heat insulator (d) transparent
  23. 23.True or false: a spectacle lens needs a transparent material. (a) True (b) False
  24. 24.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  25. 25.🧱 Which property matters most for a plug pin? (a) electrical conductor (b) transparent (c) heat insulator (d) waterproof
  26. 26.🧱 Which property matters most for a hair band? (a) waterproof (b) flexible (c) heat insulator (d) transparent
  27. 27.🧱 Which property matters most for a car seat belt? (a) flexible (b) transparent (c) heat insulator (d) electrical conductor
  28. 28.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  29. 29.Which of these needs a heat insulator? (a) a tea flask lining (b) a roof sheet (c) a magnifier lens (d) a plug pin
  30. 30.True or false: a roof sheet needs a flexible material. (a) False (b) True
  31. 31.🧱 Which property matters most for a water tank? (a) flexible (b) heat insulator (c) waterproof (d) transparent
  32. 32.Which of these needs a waterproof material? (a) a skipping rope (b) a raincoat (c) a cooking pot handle (d) a spectacle lens
  33. 33.🧱 Which material is best for the bars inside concrete? (a) plastic (b) glass (c) rubber (d) steel
  34. 34.Which of these needs an electrical conductor? (a) a roof sheet (b) a magnifier lens (c) an oven glove (d) the core of a wire
  35. 35.🧱 Which property matters most for a tea flask lining? (a) heat insulator (b) waterproof (c) electrical conductor (d) transparent
  36. 36.True or false: a raincoat needs a waterproof material. (a) True (b) False
  37. 37.True or false: a hair band needs a flexible material. (a) True (b) False
  38. 38.Which of these needs a flexible material? (a) a yoga mat (b) an umbrella cover (c) the core of a wire (d) a switch contact
  39. 39.🧱 Is steel an electrical conductor or an insulator? (a) a conductor (b) an insulator
  40. 40.🧱 Is graphite an electrical conductor or an insulator? (a) an insulator (b) a conductor

Answer key

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

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