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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 774 · 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: an oven glove needs a transparent material. (a) True (b) False
  2. 2.True or false: a spectacle lens needs a flexible material. (a) True (b) False
  3. 3.Which of these needs a flexible material? (a) a tea flask lining (b) a car seat belt (c) an oven glove (d) a roof sheet
  4. 4.🔍 Which is the odd one out? (a) steel (b) aluminium (c) clay pottery (d) graphite
  5. 5.True or false: a yoga mat needs a flexible material. (a) False (b) True
  6. 6.Which of these needs a heat insulator? (a) a roof sheet (b) a magnifier lens (c) a hair band (d) an oven glove
  7. 7.🔍 Which is the odd one out? (a) dry wood (b) plastic (c) iron (d) rubber
  8. 8.🔍 Which is the odd one out? (a) cotton cloth (b) glass (c) dry wood (d) steel
  9. 9.🔍 Which is the odd one out? (a) brass (b) glass (c) dry wood (d) rubber
  10. 10.🧱 Which property matters most for a yoga mat? (a) electrical conductor (b) waterproof (c) flexible (d) heat insulator
  11. 11.🧱 Is iron an electrical conductor or an insulator? (a) a conductor (b) an insulator
  12. 12.🧱 Is brass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  13. 13.True or false: a skipping rope needs an electrical conductor. (a) False (b) True
  14. 14.🧱 Which material is best for the bars inside concrete? (a) plastic (b) steel (c) rubber (d) glass
  15. 15.Which of these needs a waterproof material? (a) a water tank (b) a cooking pot handle (c) a skipping rope (d) a car windscreen
  16. 16.🧱 Which property matters most for a plug pin? (a) waterproof (b) heat insulator (c) electrical conductor (d) transparent
  17. 17.🧱 Is graphite an electrical conductor or an insulator? (a) a conductor (b) an insulator
  18. 18.🧱 Which property matters most for a raincoat? (a) flexible (b) electrical conductor (c) transparent (d) waterproof
  19. 19.🧱 Is copper an electrical conductor or an insulator? (a) a conductor (b) an insulator
  20. 20.🔍 Which is the odd one out? (a) iron (b) rubber (c) aluminium (d) brass
  21. 21.True or false: a switch contact needs a flexible material. (a) False (b) True
  22. 22.Which of these needs an electrical conductor? (a) a tea flask lining (b) a yoga mat (c) a hair band (d) the core of a wire
  23. 23.🧱 Which property matters most for the core of a wire? (a) electrical conductor (b) heat insulator (c) waterproof (d) flexible
  24. 24.🧱 Is plastic an electrical conductor or an insulator? (a) an insulator (b) a conductor
  25. 25.🔍 Which is the odd one out? (a) cotton cloth (b) copper (c) rubber (d) dry wood
  26. 26.True or false: a boat hull needs a heat insulator. (a) True (b) False
  27. 27.🧱 Which material is best for a window pane? (a) wood (b) glass (c) brick (d) steel
  28. 28.🧱 Which material is best for a cooking pot handle? (a) wood or plastic (b) iron (c) copper (d) aluminium
  29. 29.Which of these needs a flexible material? (a) a water tank (b) a window pane (c) a magnifier lens (d) a skipping rope
  30. 30.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  31. 31.🔍 Which is the odd one out? (a) clay pottery (b) rubber (c) aluminium (d) glass
  32. 32.True or false: a boat hull needs a waterproof material. (a) True (b) False
  33. 33.🧱 Which property matters most for an oven glove? (a) transparent (b) heat insulator (c) flexible (d) waterproof
  34. 34.🔍 Which is the odd one out? (a) brass (b) steel (c) copper (d) glass
  35. 35.True or false: a roof sheet needs a waterproof material. (a) True (b) False
  36. 36.True or false: a plug pin needs a transparent material. (a) False (b) True
  37. 37.🧱 Which property matters most for an umbrella cover? (a) electrical conductor (b) transparent (c) flexible (d) waterproof
  38. 38.🧱 Which property matters most for a water tank? (a) transparent (b) electrical conductor (c) flexible (d) waterproof
  39. 39.🧱 Which material is best for the core of an electric wire? (a) wood (b) glass (c) rubber (d) copper
  40. 40.True or false: a tea flask lining needs a heat insulator. (a) False (b) True

Answer key

  1. False
  2. False
  3. a car seat belt
  4. clay pottery
  5. True
  6. an oven glove
  7. iron
  8. steel
  9. brass
  10. flexible
  11. a conductor
  12. a conductor
  13. False
  14. steel
  15. a water tank
  16. electrical conductor
  17. a conductor
  18. waterproof
  19. a conductor
  20. rubber
  21. False
  22. the core of a wire
  23. electrical conductor
  24. an insulator
  25. copper
  26. False
  27. glass
  28. wood or plastic
  29. a skipping rope
  30. a conductor
  31. aluminium
  32. True
  33. heat insulator
  34. glass
  35. True
  36. False
  37. waterproof
  38. waterproof
  39. copper
  40. True

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