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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 302 · 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: an umbrella cover needs a flexible material. (a) False (b) True
  2. 2.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  3. 3.True or false: a tea flask lining needs a heat insulator. (a) False (b) True
  4. 4.🧱 Which property matters most for an oven glove? (a) heat insulator (b) flexible (c) waterproof (d) transparent
  5. 5.🔍 Which is the odd one out? (a) aluminium (b) brass (c) cotton cloth (d) iron
  6. 6.🧱 Which property matters most for a spectacle lens? (a) waterproof (b) heat insulator (c) transparent (d) electrical conductor
  7. 7.🔍 Which is the odd one out? (a) plastic (b) clay pottery (c) copper (d) glass
  8. 8.🧱 Is plastic an electrical conductor or an insulator? (a) an insulator (b) a conductor
  9. 9.Which of these needs a flexible material? (a) a boat hull (b) a yoga mat (c) a car windscreen (d) a plug pin
  10. 10.Which of these needs a heat insulator? (a) an umbrella cover (b) a magnifier lens (c) a plug pin (d) a cooking pot handle
  11. 11.Which of these needs a waterproof material? (a) a tea flask lining (b) a magnifier lens (c) an oven glove (d) a water tank
  12. 12.True or false: a skipping rope needs a waterproof material. (a) True (b) False
  13. 13.🧱 Which material is best for a cooking pot handle? (a) copper (b) aluminium (c) wood or plastic (d) iron
  14. 14.Which of these needs a transparent material? (a) a tea flask lining (b) a magnifier lens (c) a switch contact (d) a roof sheet
  15. 15.🧱 Which property matters most for a cooking pot handle? (a) waterproof (b) heat insulator (c) flexible (d) electrical conductor
  16. 16.True or false: a car seat belt needs an electrical conductor. (a) True (b) False
  17. 17.🔍 Which is the odd one out? (a) steel (b) brass (c) iron (d) rubber
  18. 18.🧱 Is rubber an electrical conductor or an insulator? (a) a conductor (b) an insulator
  19. 19.🧱 Which material is best for a raincoat? (a) plastic-coated cloth (b) cotton wool (c) paper (d) cardboard
  20. 20.🧱 Which property matters most for a car windscreen? (a) flexible (b) electrical conductor (c) transparent (d) waterproof
  21. 21.🔍 Which is the odd one out? (a) graphite (b) glass (c) plastic (d) dry wood
  22. 22.🧱 Which material is best for the core of an electric wire? (a) copper (b) rubber (c) wood (d) glass
  23. 23.🔍 Which is the odd one out? (a) clay pottery (b) cotton cloth (c) aluminium (d) glass
  24. 24.True or false: a spectacle lens needs a flexible material. (a) True (b) False
  25. 25.True or false: an umbrella cover needs a transparent material. (a) True (b) False
  26. 26.Which of these needs a transparent material? (a) a window pane (b) a cooking pot handle (c) a boat hull (d) the core of a wire
  27. 27.Which of these needs a flexible material? (a) a raincoat (b) a car seat belt (c) an umbrella cover (d) a roof sheet
  28. 28.🧱 Which property matters most for a roof sheet? (a) electrical conductor (b) flexible (c) waterproof (d) heat insulator
  29. 29.True or false: the core of a wire needs an electrical conductor. (a) False (b) True
  30. 30.🔍 Which is the odd one out? (a) copper (b) aluminium (c) clay pottery (d) graphite
  31. 31.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  32. 32.Which of these needs an electrical conductor? (a) a plug pin (b) a hair band (c) a roof sheet (d) a car seat belt
  33. 33.🧱 Which property matters most for a magnifier lens? (a) transparent (b) electrical conductor (c) waterproof (d) flexible
  34. 34.Which of these needs a waterproof material? (a) a skipping rope (b) a tea flask lining (c) an umbrella cover (d) the core of a wire
  35. 35.Which of these needs a heat insulator? (a) a tea flask lining (b) a window pane (c) a raincoat (d) a car windscreen
  36. 36.True or false: an umbrella cover needs a waterproof material. (a) False (b) True
  37. 37.🧱 Which property matters most for a water tank? (a) flexible (b) heat insulator (c) electrical conductor (d) waterproof
  38. 38.🧱 Which property matters most for a yoga mat? (a) heat insulator (b) electrical conductor (c) transparent (d) flexible
  39. 39.🧱 Is graphite an electrical conductor or an insulator? (a) an insulator (b) a conductor
  40. 40.Which of these needs a transparent material? (a) a plug pin (b) a spectacle lens (c) a car seat belt (d) a skipping rope

Answer key

  1. False
  2. a conductor
  3. True
  4. heat insulator
  5. cotton cloth
  6. transparent
  7. copper
  8. an insulator
  9. a yoga mat
  10. a cooking pot handle
  11. a water tank
  12. False
  13. wood or plastic
  14. a magnifier lens
  15. heat insulator
  16. False
  17. rubber
  18. an insulator
  19. plastic-coated cloth
  20. transparent
  21. graphite
  22. copper
  23. aluminium
  24. False
  25. False
  26. a window pane
  27. a car seat belt
  28. waterproof
  29. True
  30. clay pottery
  31. a conductor
  32. a plug pin
  33. transparent
  34. an umbrella cover
  35. a tea flask lining
  36. True
  37. waterproof
  38. flexible
  39. a conductor
  40. a spectacle lens

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