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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 592 · 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: a car windscreen needs a transparent material. (a) True (b) False
  2. 2.Which of these needs a heat insulator? (a) a window pane (b) a spectacle lens (c) a switch contact (d) a tea flask lining
  3. 3.True or false: a window pane needs a waterproof material. (a) True (b) False
  4. 4.True or false: a boat hull needs a waterproof material. (a) True (b) False
  5. 5.Which of these needs a waterproof material? (a) a yoga mat (b) a hair band (c) a water tank (d) a window pane
  6. 6.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  7. 7.🔍 Which is the odd one out? (a) plastic (b) brass (c) iron (d) copper
  8. 8.True or false: an oven glove needs a heat insulator. (a) False (b) True
  9. 9.Which of these needs a waterproof material? (a) a hair band (b) a yoga mat (c) a boat hull (d) a plug pin
  10. 10.🧱 Which material is best for the core of an electric wire? (a) wood (b) copper (c) glass (d) rubber
  11. 11.Which of these needs a waterproof material? (a) a yoga mat (b) a cooking pot handle (c) a magnifier lens (d) an umbrella cover
  12. 12.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
  13. 13.🧱 Is aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
  14. 14.🔍 Which is the odd one out? (a) clay pottery (b) copper (c) aluminium (d) graphite
  15. 15.Which of these needs a flexible material? (a) an umbrella cover (b) a raincoat (c) a skipping rope (d) a window pane
  16. 16.Which of these needs a waterproof material? (a) a cooking pot handle (b) a car windscreen (c) a raincoat (d) a skipping rope
  17. 17.🧱 Is graphite an electrical conductor or an insulator? (a) a conductor (b) an insulator
  18. 18.🧱 Which material is best for the bars inside concrete? (a) glass (b) steel (c) rubber (d) plastic
  19. 19.🧱 Which material is best for a cooking pot handle? (a) wood or plastic (b) iron (c) copper (d) aluminium
  20. 20.🔍 Which is the odd one out? (a) cotton cloth (b) dry wood (c) glass (d) iron
  21. 21.Which of these needs a flexible material? (a) an oven glove (b) a car seat belt (c) a plug pin (d) a cooking pot handle
  22. 22.🔍 Which is the odd one out? (a) copper (b) graphite (c) iron (d) dry wood
  23. 23.🧱 Which property matters most for a tea flask lining? (a) heat insulator (b) electrical conductor (c) transparent (d) flexible
  24. 24.🧱 Is clay pottery an electrical conductor or an insulator? (a) a conductor (b) an insulator
  25. 25.🧱 Which material is best for a raincoat? (a) plastic-coated cloth (b) paper (c) cardboard (d) cotton wool
  26. 26.Which of these needs a transparent material? (a) a roof sheet (b) a cooking pot handle (c) a window pane (d) a car seat belt
  27. 27.🔍 Which is the odd one out? (a) aluminium (b) graphite (c) steel (d) glass
  28. 28.Which of these needs a flexible material? (a) an umbrella cover (b) a switch contact (c) an oven glove (d) a hair band
  29. 29.🧱 Which property matters most for a switch contact? (a) flexible (b) heat insulator (c) electrical conductor (d) waterproof
  30. 30.🧱 Which material is best for a window pane? (a) glass (b) steel (c) brick (d) wood
  31. 31.True or false: a car seat belt needs a waterproof material. (a) True (b) False
  32. 32.🧱 Which property matters most for a water tank? (a) heat insulator (b) waterproof (c) flexible (d) electrical conductor
  33. 33.🧱 Which property matters most for a spectacle lens? (a) heat insulator (b) transparent (c) flexible (d) waterproof
  34. 34.True or false: a spectacle lens needs a transparent material. (a) False (b) True
  35. 35.True or false: a hair band needs a transparent material. (a) False (b) True
  36. 36.🧱 Is iron an electrical conductor or an insulator? (a) a conductor (b) an insulator
  37. 37.Which of these needs an electrical conductor? (a) a car seat belt (b) a boat hull (c) a hair band (d) a plug pin
  38. 38.🔍 Which is the odd one out? (a) rubber (b) copper (c) aluminium (d) graphite
  39. 39.🧱 Which property matters most for a skipping rope? (a) transparent (b) flexible (c) heat insulator (d) waterproof
  40. 40.Which of these needs a heat insulator? (a) a plug pin (b) a window pane (c) a skipping rope (d) a cooking pot handle

Answer key

  1. True
  2. a tea flask lining
  3. False
  4. True
  5. a water tank
  6. a conductor
  7. plastic
  8. True
  9. a boat hull
  10. copper
  11. an umbrella cover
  12. an insulator
  13. a conductor
  14. clay pottery
  15. a skipping rope
  16. a raincoat
  17. a conductor
  18. steel
  19. wood or plastic
  20. iron
  21. a car seat belt
  22. dry wood
  23. heat insulator
  24. an insulator
  25. plastic-coated cloth
  26. a window pane
  27. glass
  28. a hair band
  29. electrical conductor
  30. glass
  31. False
  32. waterproof
  33. transparent
  34. True
  35. False
  36. a conductor
  37. a plug pin
  38. rubber
  39. flexible
  40. a cooking pot handle

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