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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 952 · 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.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  2. 2.🔍 Which is the odd one out? (a) iron (b) copper (c) plastic (d) aluminium
  3. 3.True or false: a raincoat needs a waterproof material. (a) True (b) False
  4. 4.True or false: a skipping rope needs a flexible material. (a) False (b) True
  5. 5.Which of these needs an electrical conductor? (a) a water tank (b) an oven glove (c) a hair band (d) a switch contact
  6. 6.True or false: a cooking pot handle needs an electrical conductor. (a) False (b) True
  7. 7.🧱 Which material is best for a window pane? (a) glass (b) brick (c) wood (d) steel
  8. 8.True or false: a cooking pot handle needs a heat insulator. (a) True (b) False
  9. 9.🧱 Which property matters most for a raincoat? (a) electrical conductor (b) waterproof (c) flexible (d) heat insulator
  10. 10.🔍 Which is the odd one out? (a) copper (b) rubber (c) glass (d) clay pottery
  11. 11.True or false: a plug pin needs an electrical conductor. (a) False (b) True
  12. 12.🧱 Which property matters most for a cooking pot handle? (a) electrical conductor (b) transparent (c) waterproof (d) heat insulator
  13. 13.🧱 Which property matters most for a water tank? (a) electrical conductor (b) heat insulator (c) flexible (d) waterproof
  14. 14.🔍 Which is the odd one out? (a) aluminium (b) rubber (c) clay pottery (d) cotton cloth
  15. 15.Which of these needs a waterproof material? (a) a car windscreen (b) a window pane (c) a boat hull (d) a car seat belt
  16. 16.🧱 Is glass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  17. 17.🧱 Which property matters most for a car windscreen? (a) electrical conductor (b) flexible (c) transparent (d) heat insulator
  18. 18.Which of these needs an electrical conductor? (a) a water tank (b) a plug pin (c) a roof sheet (d) an umbrella cover
  19. 19.🔍 Which is the odd one out? (a) iron (b) steel (c) rubber (d) brass
  20. 20.🧱 Is plastic an electrical conductor or an insulator? (a) an insulator (b) a conductor
  21. 21.True or false: a raincoat needs an electrical conductor. (a) True (b) False
  22. 22.🧱 Is steel an electrical conductor or an insulator? (a) a conductor (b) an insulator
  23. 23.True or false: a yoga mat needs a waterproof material. (a) False (b) True
  24. 24.🧱 Which property matters most for an oven glove? (a) heat insulator (b) waterproof (c) transparent (d) flexible
  25. 25.Which of these needs a transparent material? (a) a water tank (b) a boat hull (c) a yoga mat (d) a magnifier lens
  26. 26.Which of these needs a heat insulator? (a) a cooking pot handle (b) a magnifier lens (c) a car seat belt (d) a car windscreen
  27. 27.🧱 Which material is best for the bars inside concrete? (a) plastic (b) rubber (c) glass (d) steel
  28. 28.🔍 Which is the odd one out? (a) brass (b) plastic (c) glass (d) dry wood
  29. 29.🧱 Which property matters most for a car seat belt? (a) transparent (b) heat insulator (c) flexible (d) electrical conductor
  30. 30.True or false: an umbrella cover needs a waterproof material. (a) True (b) False
  31. 31.Which of these needs a waterproof material? (a) a window pane (b) a water tank (c) a hair band (d) a car seat belt
  32. 32.🔍 Which is the odd one out? (a) glass (b) clay pottery (c) plastic (d) steel
  33. 33.True or false: a tea flask lining needs a heat insulator. (a) True (b) False
  34. 34.True or false: a roof sheet needs a transparent material. (a) True (b) False
  35. 35.Which of these needs a transparent material? (a) a water tank (b) a car seat belt (c) a plug pin (d) a window pane
  36. 36.🧱 Which property matters most for a yoga mat? (a) electrical conductor (b) flexible (c) transparent (d) waterproof
  37. 37.🧱 Which material is best for the core of an electric wire? (a) copper (b) rubber (c) glass (d) wood
  38. 38.Which of these needs a waterproof material? (a) a spectacle lens (b) a window pane (c) a tea flask lining (d) an umbrella cover
  39. 39.True or false: a boat hull needs a waterproof material. (a) False (b) True
  40. 40.True or false: a magnifier lens needs a transparent material. (a) False (b) True

Answer key

  1. a conductor
  2. plastic
  3. True
  4. True
  5. a switch contact
  6. False
  7. glass
  8. True
  9. waterproof
  10. copper
  11. True
  12. heat insulator
  13. waterproof
  14. aluminium
  15. a boat hull
  16. an insulator
  17. transparent
  18. a plug pin
  19. rubber
  20. an insulator
  21. False
  22. a conductor
  23. False
  24. heat insulator
  25. a magnifier lens
  26. a cooking pot handle
  27. steel
  28. brass
  29. flexible
  30. True
  31. a water tank
  32. steel
  33. True
  34. False
  35. a window pane
  36. flexible
  37. copper
  38. an umbrella cover
  39. True
  40. True

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