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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 433 · 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 hair band needs a flexible material. (a) True (b) False
  2. 2.🧱 Is glass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  3. 3.🧱 Which material is best for the core of an electric wire? (a) wood (b) glass (c) copper (d) rubber
  4. 4.True or false: an oven glove needs a heat insulator. (a) False (b) True
  5. 5.🧱 Which material is best for a window pane? (a) brick (b) glass (c) wood (d) steel
  6. 6.🔍 Which is the odd one out? (a) aluminium (b) clay pottery (c) brass (d) copper
  7. 7.True or false: a cooking pot handle needs a heat insulator. (a) True (b) False
  8. 8.Which of these needs a heat insulator? (a) a boat hull (b) a magnifier lens (c) a cooking pot handle (d) a plug pin
  9. 9.Which of these needs an electrical conductor? (a) a spectacle lens (b) a water tank (c) a roof sheet (d) the core of a wire
  10. 10.🧱 Which material is best for the bars inside concrete? (a) rubber (b) plastic (c) steel (d) glass
  11. 11.🧱 Which material is best for a raincoat? (a) plastic-coated cloth (b) paper (c) cotton wool (d) cardboard
  12. 12.🧱 Is rubber an electrical conductor or an insulator? (a) a conductor (b) an insulator
  13. 13.True or false: a switch contact needs a transparent material. (a) True (b) False
  14. 14.🔍 Which is the odd one out? (a) brass (b) rubber (c) aluminium (d) copper
  15. 15.Which of these needs a transparent material? (a) a plug pin (b) a boat hull (c) a car windscreen (d) a raincoat
  16. 16.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  17. 17.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  18. 18.True or false: a spectacle lens needs a waterproof material. (a) False (b) True
  19. 19.Which of these needs a transparent material? (a) a magnifier lens (b) an oven glove (c) a boat hull (d) a tea flask lining
  20. 20.Which of these needs a heat insulator? (a) a raincoat (b) a tea flask lining (c) a switch contact (d) a car seat belt
  21. 21.🧱 Which property matters most for a car windscreen? (a) waterproof (b) transparent (c) electrical conductor (d) flexible
  22. 22.🔍 Which is the odd one out? (a) plastic (b) glass (c) dry wood (d) copper
  23. 23.🧱 Which property matters most for an umbrella cover? (a) transparent (b) waterproof (c) heat insulator (d) flexible
  24. 24.🧱 Is clay pottery an electrical conductor or an insulator? (a) a conductor (b) an insulator
  25. 25.🧱 Which property matters most for a car seat belt? (a) flexible (b) heat insulator (c) electrical conductor (d) waterproof
  26. 26.🧱 Is cotton cloth an electrical conductor or an insulator? (a) a conductor (b) an insulator
  27. 27.Which of these needs a heat insulator? (a) an umbrella cover (b) a skipping rope (c) an oven glove (d) a window pane
  28. 28.Which of these needs an electrical conductor? (a) a yoga mat (b) a water tank (c) an oven glove (d) a switch contact
  29. 29.🔍 Which is the odd one out? (a) plastic (b) clay pottery (c) iron (d) dry wood
  30. 30.🧱 Is dry wood an electrical conductor or an insulator? (a) an insulator (b) a conductor
  31. 31.🧱 Which property matters most for a roof sheet? (a) transparent (b) electrical conductor (c) waterproof (d) flexible
  32. 32.🔍 Which is the odd one out? (a) copper (b) iron (c) plastic (d) steel
  33. 33.True or false: a cooking pot handle needs an electrical conductor. (a) True (b) False
  34. 34.🧱 Which property matters most for an oven glove? (a) transparent (b) flexible (c) electrical conductor (d) heat insulator
  35. 35.🔍 Which is the odd one out? (a) cotton cloth (b) iron (c) copper (d) brass
  36. 36.🧱 Which property matters most for a window pane? (a) waterproof (b) flexible (c) transparent (d) heat insulator
  37. 37.🧱 Is brass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  38. 38.🧱 Is graphite an electrical conductor or an insulator? (a) a conductor (b) an insulator
  39. 39.Which of these needs a waterproof material? (a) a window pane (b) a magnifier lens (c) an umbrella cover (d) a skipping rope
  40. 40.🧱 Which property matters most for a water tank? (a) transparent (b) heat insulator (c) flexible (d) waterproof

Answer key

  1. True
  2. an insulator
  3. copper
  4. True
  5. glass
  6. clay pottery
  7. True
  8. a cooking pot handle
  9. the core of a wire
  10. steel
  11. plastic-coated cloth
  12. an insulator
  13. False
  14. rubber
  15. a car windscreen
  16. a conductor
  17. a conductor
  18. False
  19. a magnifier lens
  20. a tea flask lining
  21. transparent
  22. copper
  23. waterproof
  24. an insulator
  25. flexible
  26. an insulator
  27. an oven glove
  28. a switch contact
  29. iron
  30. an insulator
  31. waterproof
  32. plastic
  33. False
  34. heat insulator
  35. cotton cloth
  36. transparent
  37. a conductor
  38. a conductor
  39. an umbrella cover
  40. waterproof

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