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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 543 · 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 material is best for the bars inside concrete? (a) steel (b) plastic (c) rubber (d) glass
  2. 2.🧱 Is glass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  3. 3.Which of these needs a flexible material? (a) an umbrella cover (b) a car seat belt (c) a car windscreen (d) a window pane
  4. 4.🔍 Which is the odd one out? (a) cotton cloth (b) clay pottery (c) plastic (d) aluminium
  5. 5.Which of these needs a waterproof material? (a) the core of a wire (b) a hair band (c) a water tank (d) a spectacle lens
  6. 6.🧱 Which property matters most for a plug pin? (a) waterproof (b) transparent (c) electrical conductor (d) flexible
  7. 7.🧱 Which property matters most for an umbrella cover? (a) electrical conductor (b) waterproof (c) transparent (d) heat insulator
  8. 8.🧱 Is brass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  9. 9.True or false: the core of a wire needs a flexible material. (a) False (b) True
  10. 10.🧱 Which material is best for a window pane? (a) wood (b) steel (c) glass (d) brick
  11. 11.🧱 Which property matters most for an oven glove? (a) waterproof (b) heat insulator (c) electrical conductor (d) flexible
  12. 12.True or false: a magnifier lens needs a transparent material. (a) False (b) True
  13. 13.Which of these needs a heat insulator? (a) an oven glove (b) a yoga mat (c) a switch contact (d) a skipping rope
  14. 14.🧱 Is iron an electrical conductor or an insulator? (a) a conductor (b) an insulator
  15. 15.Which of these needs an electrical conductor? (a) a plug pin (b) a water tank (c) a magnifier lens (d) a boat hull
  16. 16.True or false: a skipping rope needs a flexible material. (a) False (b) True
  17. 17.Which of these needs a heat insulator? (a) a car windscreen (b) a raincoat (c) a cooking pot handle (d) a magnifier lens
  18. 18.Which of these needs a transparent material? (a) a window pane (b) a hair band (c) a switch contact (d) a car seat belt
  19. 19.🧱 Is copper an electrical conductor or an insulator? (a) a conductor (b) an insulator
  20. 20.True or false: a roof sheet needs a waterproof material. (a) False (b) True
  21. 21.True or false: a cooking pot handle 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.🧱 Which property matters most for a spectacle lens? (a) electrical conductor (b) waterproof (c) transparent (d) flexible
  24. 24.🧱 Which property matters most for a roof sheet? (a) flexible (b) transparent (c) waterproof (d) electrical conductor
  25. 25.🧱 Which property matters most for a yoga mat? (a) transparent (b) flexible (c) waterproof (d) heat insulator
  26. 26.🧱 Which material is best for a raincoat? (a) cotton wool (b) cardboard (c) paper (d) plastic-coated cloth
  27. 27.Which of these needs an electrical conductor? (a) a water tank (b) an oven glove (c) a hair band (d) a switch contact
  28. 28.Which of these needs a waterproof material? (a) a boat hull (b) a hair band (c) a switch contact (d) an oven glove
  29. 29.Which of these needs a waterproof material? (a) a window pane (b) a raincoat (c) the core of a wire (d) a magnifier lens
  30. 30.🧱 Is aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
  31. 31.🔍 Which is the odd one out? (a) dry wood (b) plastic (c) clay pottery (d) copper
  32. 32.🧱 Is cotton cloth an electrical conductor or an insulator? (a) a conductor (b) an insulator
  33. 33.Which of these needs a flexible material? (a) a window pane (b) an oven glove (c) a yoga mat (d) the core of a wire
  34. 34.True or false: a magnifier lens needs a waterproof material. (a) True (b) False
  35. 35.🔍 Which is the odd one out? (a) brass (b) aluminium (c) plastic (d) copper
  36. 36.True or false: a car windscreen needs an electrical conductor. (a) False (b) True
  37. 37.🧱 Which property matters most for a window pane? (a) heat insulator (b) waterproof (c) transparent (d) flexible
  38. 38.True or false: a car seat belt needs a heat insulator. (a) True (b) False
  39. 39.🧱 Which material is best for the core of an electric wire? (a) rubber (b) glass (c) wood (d) copper
  40. 40.Which of these needs an electrical conductor? (a) the core of a wire (b) a yoga mat (c) a raincoat (d) a roof sheet

Answer key

  1. steel
  2. an insulator
  3. a car seat belt
  4. aluminium
  5. a water tank
  6. electrical conductor
  7. waterproof
  8. a conductor
  9. False
  10. glass
  11. heat insulator
  12. True
  13. an oven glove
  14. a conductor
  15. a plug pin
  16. True
  17. a cooking pot handle
  18. a window pane
  19. a conductor
  20. True
  21. False
  22. a conductor
  23. transparent
  24. waterproof
  25. flexible
  26. plastic-coated cloth
  27. a switch contact
  28. a boat hull
  29. a raincoat
  30. a conductor
  31. copper
  32. an insulator
  33. a yoga mat
  34. False
  35. plastic
  36. False
  37. transparent
  38. False
  39. copper
  40. the core of a wire

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