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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 411 · 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 of these needs a heat insulator? (a) a tea flask lining (b) a yoga mat (c) a car seat belt (d) a raincoat
  2. 2.🧱 Which material is best for a window pane? (a) brick (b) glass (c) wood (d) steel
  3. 3.True or false: a car windscreen needs a transparent material. (a) False (b) True
  4. 4.Which of these needs an electrical conductor? (a) a car windscreen (b) a magnifier lens (c) a plug pin (d) a yoga mat
  5. 5.True or false: a roof sheet needs a waterproof material. (a) False (b) True
  6. 6.🔍 Which is the odd one out? (a) graphite (b) copper (c) rubber (d) iron
  7. 7.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  8. 8.🔍 Which is the odd one out? (a) clay pottery (b) iron (c) aluminium (d) copper
  9. 9.🧱 Is iron an electrical conductor or an insulator? (a) a conductor (b) an insulator
  10. 10.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  11. 11.🔍 Which is the odd one out? (a) aluminium (b) plastic (c) brass (d) graphite
  12. 12.True or false: a window pane needs a waterproof material. (a) False (b) True
  13. 13.Which of these needs a flexible material? (a) an oven glove (b) a car seat belt (c) a boat hull (d) a car windscreen
  14. 14.🧱 Is graphite an electrical conductor or an insulator? (a) an insulator (b) a conductor
  15. 15.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
  16. 16.🧱 Which material is best for the core of an electric wire? (a) wood (b) glass (c) copper (d) rubber
  17. 17.True or false: a boat hull needs a waterproof material. (a) True (b) False
  18. 18.Which of these needs a waterproof material? (a) a car windscreen (b) a roof sheet (c) a plug pin (d) a yoga mat
  19. 19.🧱 Is copper an electrical conductor or an insulator? (a) a conductor (b) an insulator
  20. 20.🧱 Is glass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  21. 21.🧱 Which material is best for a cooking pot handle? (a) copper (b) wood or plastic (c) aluminium (d) iron
  22. 22.Which of these needs a transparent material? (a) a spectacle lens (b) a tea flask lining (c) the core of a wire (d) a cooking pot handle
  23. 23.🧱 Which material is best for a raincoat? (a) plastic-coated cloth (b) paper (c) cardboard (d) cotton wool
  24. 24.🔍 Which is the odd one out? (a) clay pottery (b) copper (c) dry wood (d) rubber
  25. 25.True or false: an umbrella cover needs a flexible material. (a) False (b) True
  26. 26.True or false: a window pane needs a transparent material. (a) False (b) True
  27. 27.Which of these needs an electrical conductor? (a) a cooking pot handle (b) a water tank (c) a raincoat (d) the core of a wire
  28. 28.🧱 Which property matters most for a car seat belt? (a) heat insulator (b) transparent (c) flexible (d) waterproof
  29. 29.🧱 Which property matters most for a plug pin? (a) electrical conductor (b) waterproof (c) transparent (d) flexible
  30. 30.🔍 Which is the odd one out? (a) dry wood (b) iron (c) graphite (d) aluminium
  31. 31.🔍 Which is the odd one out? (a) steel (b) brass (c) graphite (d) glass
  32. 32.🧱 Which property matters most for a water tank? (a) transparent (b) waterproof (c) flexible (d) electrical conductor
  33. 33.🧱 Which property matters most for a hair band? (a) flexible (b) electrical conductor (c) waterproof (d) transparent
  34. 34.🧱 Which property matters most for a car windscreen? (a) waterproof (b) transparent (c) electrical conductor (d) flexible
  35. 35.🧱 Which property matters most for an oven glove? (a) flexible (b) electrical conductor (c) heat insulator (d) waterproof
  36. 36.True or false: the core of a wire needs an electrical conductor. (a) False (b) True
  37. 37.Which of these needs a transparent material? (a) a plug pin (b) a tea flask lining (c) a car windscreen (d) an umbrella cover
  38. 38.🔍 Which is the odd one out? (a) glass (b) rubber (c) plastic (d) iron
  39. 39.🧱 Which property matters most for a roof sheet? (a) transparent (b) waterproof (c) heat insulator (d) flexible
  40. 40.Which of these needs a heat insulator? (a) an oven glove (b) a hair band (c) a plug pin (d) a car windscreen

Answer key

  1. a tea flask lining
  2. glass
  3. True
  4. a plug pin
  5. True
  6. rubber
  7. a conductor
  8. clay pottery
  9. a conductor
  10. a conductor
  11. plastic
  12. False
  13. a car seat belt
  14. a conductor
  15. an insulator
  16. copper
  17. True
  18. a roof sheet
  19. a conductor
  20. an insulator
  21. wood or plastic
  22. a spectacle lens
  23. plastic-coated cloth
  24. copper
  25. False
  26. True
  27. the core of a wire
  28. flexible
  29. electrical conductor
  30. dry wood
  31. glass
  32. waterproof
  33. flexible
  34. transparent
  35. heat insulator
  36. True
  37. a car windscreen
  38. iron
  39. waterproof
  40. an oven glove

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