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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 660 · 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) glass (b) rubber (c) cotton cloth (d) brass
  2. 2.True or false: a yoga mat needs an electrical conductor. (a) True (b) False
  3. 3.True or false: a boat hull needs a waterproof material. (a) True (b) False
  4. 4.Which of these needs a waterproof material? (a) a yoga mat (b) a cooking pot handle (c) a car windscreen (d) a water tank
  5. 5.True or false: the core of a wire needs an electrical conductor. (a) False (b) True
  6. 6.Which of these needs a heat insulator? (a) a switch contact (b) an oven glove (c) a plug pin (d) a raincoat
  7. 7.🧱 Is glass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  8. 8.Which of these needs a transparent material? (a) a raincoat (b) a spectacle lens (c) an oven glove (d) the core of a wire
  9. 9.Which of these needs a heat insulator? (a) a switch contact (b) a cooking pot handle (c) a magnifier lens (d) a yoga mat
  10. 10.Which of these needs a flexible material? (a) a skipping rope (b) a plug pin (c) the core of a wire (d) a spectacle lens
  11. 11.🧱 Is graphite an electrical conductor or an insulator? (a) a conductor (b) an insulator
  12. 12.🧱 Which property matters most for an umbrella cover? (a) waterproof (b) transparent (c) flexible (d) heat insulator
  13. 13.True or false: a spectacle lens needs a transparent material. (a) True (b) False
  14. 14.True or false: an oven glove needs a flexible material. (a) True (b) False
  15. 15.🔍 Which is the odd one out? (a) iron (b) steel (c) aluminium (d) plastic
  16. 16.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
  17. 17.🧱 Which material is best for a window pane? (a) glass (b) wood (c) brick (d) steel
  18. 18.Which of these needs a flexible material? (a) a boat hull (b) a roof sheet (c) a hair band (d) a magnifier lens
  19. 19.🔍 Which is the odd one out? (a) rubber (b) cotton cloth (c) iron (d) plastic
  20. 20.Which of these needs a flexible material? (a) a window pane (b) a car seat belt (c) a raincoat (d) a car windscreen
  21. 21.True or false: an oven glove needs a waterproof material. (a) True (b) False
  22. 22.🧱 Which material is best for the bars inside concrete? (a) glass (b) rubber (c) plastic (d) steel
  23. 23.True or false: a hair band needs a waterproof material. (a) False (b) True
  24. 24.🧱 Which property matters most for a raincoat? (a) flexible (b) electrical conductor (c) waterproof (d) transparent
  25. 25.True or false: a switch contact needs an electrical conductor. (a) False (b) True
  26. 26.True or false: a water tank needs a transparent material. (a) False (b) True
  27. 27.🧱 Which property matters most for a tea flask lining? (a) transparent (b) electrical conductor (c) heat insulator (d) flexible
  28. 28.🧱 Which property matters most for a water tank? (a) electrical conductor (b) transparent (c) heat insulator (d) waterproof
  29. 29.🔍 Which is the odd one out? (a) cotton cloth (b) rubber (c) glass (d) aluminium
  30. 30.🧱 Is cotton cloth an electrical conductor or an insulator? (a) a conductor (b) an insulator
  31. 31.Which of these needs a waterproof material? (a) a car windscreen (b) a magnifier lens (c) a yoga mat (d) a raincoat
  32. 32.True or false: a tea flask lining needs a heat insulator. (a) False (b) True
  33. 33.Which of these needs a transparent material? (a) a cooking pot handle (b) a magnifier lens (c) a water tank (d) a skipping rope
  34. 34.🧱 Which material is best for the core of an electric wire? (a) rubber (b) glass (c) copper (d) wood
  35. 35.🔍 Which is the odd one out? (a) aluminium (b) clay pottery (c) steel (d) copper
  36. 36.🧱 Which property matters most for a boat hull? (a) flexible (b) transparent (c) electrical conductor (d) waterproof
  37. 37.True or false: a water tank needs an electrical conductor. (a) False (b) True
  38. 38.🔍 Which is the odd one out? (a) copper (b) aluminium (c) cotton cloth (d) steel
  39. 39.🧱 Which property matters most for a yoga mat? (a) waterproof (b) flexible (c) transparent (d) electrical conductor
  40. 40.True or false: a spectacle lens needs a heat insulator. (a) True (b) False

Answer key

  1. brass
  2. False
  3. True
  4. a water tank
  5. True
  6. an oven glove
  7. an insulator
  8. a spectacle lens
  9. a cooking pot handle
  10. a skipping rope
  11. a conductor
  12. waterproof
  13. True
  14. False
  15. plastic
  16. an insulator
  17. glass
  18. a hair band
  19. iron
  20. a car seat belt
  21. False
  22. steel
  23. False
  24. waterproof
  25. True
  26. False
  27. heat insulator
  28. waterproof
  29. aluminium
  30. an insulator
  31. a raincoat
  32. True
  33. a magnifier lens
  34. copper
  35. clay pottery
  36. waterproof
  37. False
  38. cotton cloth
  39. flexible
  40. False

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