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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 437 · 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: the core of a wire needs an electrical conductor. (a) False (b) True
  2. 2.Which of these needs a flexible material? (a) a spectacle lens (b) a yoga mat (c) a water tank (d) a cooking pot handle
  3. 3.True or false: a window pane needs a waterproof material. (a) True (b) False
  4. 4.Which of these needs a flexible material? (a) a cooking pot handle (b) a magnifier lens (c) a skipping rope (d) a water tank
  5. 5.🔍 Which is the odd one out? (a) brass (b) steel (c) copper (d) dry wood
  6. 6.🧱 Which property matters most for a water tank? (a) flexible (b) waterproof (c) heat insulator (d) electrical conductor
  7. 7.True or false: a magnifier lens needs a transparent material. (a) False (b) True
  8. 8.🧱 Which material is best for a cooking pot handle? (a) copper (b) iron (c) aluminium (d) wood or plastic
  9. 9.🧱 Is brass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  10. 10.🧱 Which property matters most for an umbrella cover? (a) transparent (b) waterproof (c) electrical conductor (d) heat insulator
  11. 11.True or false: a roof sheet needs a flexible material. (a) False (b) True
  12. 12.Which of these needs a heat insulator? (a) a skipping rope (b) an oven glove (c) a yoga mat (d) a window pane
  13. 13.🧱 Which material is best for a raincoat? (a) cotton wool (b) paper (c) cardboard (d) plastic-coated cloth
  14. 14.🔍 Which is the odd one out? (a) clay pottery (b) dry wood (c) plastic (d) iron
  15. 15.🔍 Which is the odd one out? (a) steel (b) dry wood (c) glass (d) cotton cloth
  16. 16.Which of these needs a waterproof material? (a) a skipping rope (b) a window pane (c) a cooking pot handle (d) a water tank
  17. 17.True or false: a spectacle lens needs a transparent material. (a) False (b) True
  18. 18.Which of these needs a transparent material? (a) an oven glove (b) a plug pin (c) a window pane (d) a boat hull
  19. 19.🧱 Is cotton cloth an electrical conductor or an insulator? (a) a conductor (b) an insulator
  20. 20.🔍 Which is the odd one out? (a) dry wood (b) cotton cloth (c) aluminium (d) clay pottery
  21. 21.🔍 Which is the odd one out? (a) graphite (b) aluminium (c) clay pottery (d) copper
  22. 22.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  23. 23.True or false: a hair band needs a heat insulator. (a) False (b) True
  24. 24.🧱 Which property matters most for a window pane? (a) waterproof (b) electrical conductor (c) flexible (d) transparent
  25. 25.True or false: a magnifier lens needs a waterproof material. (a) True (b) False
  26. 26.🧱 Which property matters most for a cooking pot handle? (a) flexible (b) transparent (c) heat insulator (d) electrical conductor
  27. 27.🔍 Which is the odd one out? (a) brass (b) copper (c) plastic (d) aluminium
  28. 28.Which of these needs a transparent material? (a) a yoga mat (b) a water tank (c) the core of a wire (d) a spectacle lens
  29. 29.🔍 Which is the odd one out? (a) aluminium (b) glass (c) iron (d) graphite
  30. 30.🧱 Is glass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  31. 31.🧱 Which material is best for the bars inside concrete? (a) plastic (b) rubber (c) glass (d) steel
  32. 32.Which of these needs an electrical conductor? (a) a tea flask lining (b) a plug pin (c) a raincoat (d) a yoga mat
  33. 33.🧱 Is clay pottery an electrical conductor or an insulator? (a) an insulator (b) a conductor
  34. 34.Which of these needs a heat insulator? (a) a cooking pot handle (b) an umbrella cover (c) a car windscreen (d) a window pane
  35. 35.Which of these needs a waterproof material? (a) a window pane (b) the core of a wire (c) an umbrella cover (d) a yoga mat
  36. 36.🧱 Which material is best for the core of an electric wire? (a) glass (b) wood (c) rubber (d) copper
  37. 37.Which of these needs a waterproof material? (a) a spectacle lens (b) a plug pin (c) a cooking pot handle (d) a raincoat
  38. 38.True or false: a yoga mat needs a flexible material. (a) True (b) False
  39. 39.🧱 Which material is best for a window pane? (a) steel (b) glass (c) brick (d) wood
  40. 40.True or false: a skipping rope needs an electrical conductor. (a) False (b) True

Answer key

  1. True
  2. a yoga mat
  3. False
  4. a skipping rope
  5. dry wood
  6. waterproof
  7. True
  8. wood or plastic
  9. a conductor
  10. waterproof
  11. False
  12. an oven glove
  13. plastic-coated cloth
  14. iron
  15. steel
  16. a water tank
  17. True
  18. a window pane
  19. an insulator
  20. aluminium
  21. clay pottery
  22. a conductor
  23. False
  24. transparent
  25. False
  26. heat insulator
  27. plastic
  28. a spectacle lens
  29. glass
  30. an insulator
  31. steel
  32. a plug pin
  33. an insulator
  34. a cooking pot handle
  35. an umbrella cover
  36. copper
  37. a raincoat
  38. True
  39. glass
  40. False

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