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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 671 · 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 property matters most for an oven glove? (a) waterproof (b) transparent (c) electrical conductor (d) heat insulator
  2. 2.🧱 Which material is best for a raincoat? (a) cotton wool (b) cardboard (c) paper (d) plastic-coated cloth
  3. 3.🔍 Which is the odd one out? (a) graphite (b) iron (c) plastic (d) copper
  4. 4.🧱 Which property matters most for a cooking pot handle? (a) waterproof (b) electrical conductor (c) flexible (d) heat insulator
  5. 5.🔍 Which is the odd one out? (a) rubber (b) clay pottery (c) graphite (d) dry wood
  6. 6.True or false: the core of a wire needs an electrical conductor. (a) False (b) True
  7. 7.🔍 Which is the odd one out? (a) brass (b) aluminium (c) steel (d) rubber
  8. 8.🧱 Which material is best for the core of an electric wire? (a) rubber (b) copper (c) glass (d) wood
  9. 9.🧱 Which property matters most for a roof sheet? (a) heat insulator (b) transparent (c) flexible (d) waterproof
  10. 10.Which of these needs a heat insulator? (a) a window pane (b) a hair band (c) an umbrella cover (d) an oven glove
  11. 11.Which of these needs a flexible material? (a) an oven glove (b) a hair band (c) a plug pin (d) a car windscreen
  12. 12.🧱 Which property matters most for a skipping rope? (a) flexible (b) waterproof (c) heat insulator (d) transparent
  13. 13.True or false: a yoga mat needs a transparent material. (a) True (b) False
  14. 14.True or false: a car windscreen needs a transparent material. (a) True (b) False
  15. 15.🧱 Which material is best for the bars inside concrete? (a) rubber (b) glass (c) steel (d) plastic
  16. 16.🧱 Which property matters most for a plug pin? (a) heat insulator (b) waterproof (c) electrical conductor (d) transparent
  17. 17.Which of these needs an electrical conductor? (a) a hair band (b) a window pane (c) a plug pin (d) a raincoat
  18. 18.Which of these needs a waterproof material? (a) a switch contact (b) an oven glove (c) a spectacle lens (d) a water tank
  19. 19.🧱 Which property matters most for a water tank? (a) waterproof (b) transparent (c) heat insulator (d) electrical conductor
  20. 20.🧱 Which material is best for a window pane? (a) brick (b) steel (c) glass (d) wood
  21. 21.🔍 Which is the odd one out? (a) iron (b) aluminium (c) copper (d) cotton cloth
  22. 22.🔍 Which is the odd one out? (a) clay pottery (b) rubber (c) glass (d) iron
  23. 23.True or false: a water tank needs a waterproof material. (a) False (b) True
  24. 24.🧱 Which property matters most for a raincoat? (a) electrical conductor (b) transparent (c) heat insulator (d) waterproof
  25. 25.True or false: a boat hull needs a waterproof material. (a) False (b) True
  26. 26.🧱 Which property matters most for a tea flask lining? (a) transparent (b) heat insulator (c) electrical conductor (d) waterproof
  27. 27.🔍 Which is the odd one out? (a) iron (b) copper (c) aluminium (d) dry wood
  28. 28.🧱 Which material is best for a cooking pot handle? (a) aluminium (b) wood or plastic (c) copper (d) iron
  29. 29.🧱 Which property matters most for an umbrella cover? (a) flexible (b) waterproof (c) heat insulator (d) transparent
  30. 30.True or false: an umbrella cover needs a waterproof material. (a) False (b) True
  31. 31.🧱 Is cotton cloth an electrical conductor or an insulator? (a) a conductor (b) an insulator
  32. 32.🔍 Which is the odd one out? (a) brass (b) glass (c) steel (d) copper
  33. 33.🧱 Is rubber an electrical conductor or an insulator? (a) an insulator (b) a conductor
  34. 34.Which of these needs a flexible material? (a) a roof sheet (b) a skipping rope (c) an umbrella cover (d) a window pane
  35. 35.🧱 Which property matters most for a spectacle lens? (a) heat insulator (b) waterproof (c) transparent (d) flexible
  36. 36.True or false: a plug pin needs a waterproof material. (a) False (b) True
  37. 37.True or false: a hair band needs a flexible material. (a) False (b) True
  38. 38.True or false: the core of a wire needs a heat insulator. (a) False (b) True
  39. 39.True or false: a tea flask lining needs a heat insulator. (a) True (b) False
  40. 40.🧱 Is graphite an electrical conductor or an insulator? (a) a conductor (b) an insulator

Answer key

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

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