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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 404 · 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.True or false: a boat hull needs a waterproof material. (a) False (b) True
  2. 2.🧱 Is copper an electrical conductor or an insulator? (a) a conductor (b) an insulator
  3. 3.🔍 Which is the odd one out? (a) clay pottery (b) glass (c) rubber (d) copper
  4. 4.🧱 Which property matters most for a water tank? (a) heat insulator (b) waterproof (c) electrical conductor (d) transparent
  5. 5.True or false: a raincoat needs a waterproof material. (a) True (b) False
  6. 6.Which of these needs an electrical conductor? (a) a car windscreen (b) a boat hull (c) the core of a wire (d) a car seat belt
  7. 7.🔍 Which is the odd one out? (a) aluminium (b) rubber (c) glass (d) clay pottery
  8. 8.🧱 Is brass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  9. 9.🧱 Which property matters most for a cooking pot handle? (a) transparent (b) electrical conductor (c) waterproof (d) heat insulator
  10. 10.True or false: a switch contact needs a heat insulator. (a) True (b) False
  11. 11.Which of these needs a transparent material? (a) a roof sheet (b) a raincoat (c) a window pane (d) a switch contact
  12. 12.🧱 Which property matters most for a raincoat? (a) heat insulator (b) electrical conductor (c) transparent (d) waterproof
  13. 13.🧱 Which material is best for the core of an electric wire? (a) wood (b) rubber (c) copper (d) glass
  14. 14.True or false: a tea flask lining needs a transparent material. (a) False (b) True
  15. 15.True or false: a spectacle lens needs a waterproof material. (a) True (b) False
  16. 16.True or false: a roof sheet needs a flexible material. (a) False (b) True
  17. 17.True or false: a hair band needs a waterproof material. (a) True (b) False
  18. 18.🧱 Which property matters most for a boat hull? (a) transparent (b) waterproof (c) electrical conductor (d) flexible
  19. 19.True or false: a hair band needs a flexible material. (a) True (b) False
  20. 20.Which of these needs a flexible material? (a) a yoga mat (b) a tea flask lining (c) a spectacle lens (d) a plug pin
  21. 21.True or false: an oven glove needs a heat insulator. (a) False (b) True
  22. 22.Which of these needs a flexible material? (a) an oven glove (b) a switch contact (c) an umbrella cover (d) a skipping rope
  23. 23.🔍 Which is the odd one out? (a) aluminium (b) steel (c) plastic (d) copper
  24. 24.Which of these needs a heat insulator? (a) a switch contact (b) a yoga mat (c) a tea flask lining (d) a magnifier lens
  25. 25.Which of these needs a transparent material? (a) a plug pin (b) a boat hull (c) an oven glove (d) a car windscreen
  26. 26.🔍 Which is the odd one out? (a) plastic (b) dry wood (c) steel (d) clay pottery
  27. 27.🧱 Which property matters most for a skipping rope? (a) flexible (b) waterproof (c) heat insulator (d) electrical conductor
  28. 28.Which of these needs an electrical conductor? (a) an umbrella cover (b) a yoga mat (c) a skipping rope (d) a plug pin
  29. 29.🔍 Which is the odd one out? (a) aluminium (b) graphite (c) glass (d) steel
  30. 30.🧱 Which material is best for a cooking pot handle? (a) iron (b) aluminium (c) wood or plastic (d) copper
  31. 31.🧱 Is glass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  32. 32.🧱 Which property matters most for a plug pin? (a) electrical conductor (b) flexible (c) waterproof (d) transparent
  33. 33.True or false: a tea flask lining needs a heat insulator. (a) True (b) False
  34. 34.🧱 Which material is best for a raincoat? (a) plastic-coated cloth (b) paper (c) cardboard (d) cotton wool
  35. 35.🧱 Which property matters most for a tea flask lining? (a) flexible (b) transparent (c) waterproof (d) heat insulator
  36. 36.🧱 Which material is best for the bars inside concrete? (a) plastic (b) rubber (c) glass (d) steel
  37. 37.Which of these needs a waterproof material? (a) a raincoat (b) a hair band (c) an oven glove (d) a yoga mat
  38. 38.True or false: a hair band needs a heat insulator. (a) True (b) False
  39. 39.🧱 Which property matters most for a hair band? (a) transparent (b) waterproof (c) flexible (d) electrical conductor
  40. 40.🧱 Which material is best for a window pane? (a) steel (b) brick (c) wood (d) glass

Answer key

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

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