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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 797 · 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 oven glove needs an electrical conductor. (a) False (b) True
  2. 2.Which of these needs an electrical conductor? (a) a plug pin (b) a raincoat (c) a skipping rope (d) a hair band
  3. 3.🧱 Is clay pottery an electrical conductor or an insulator? (a) an insulator (b) a conductor
  4. 4.🔍 Which is the odd one out? (a) rubber (b) iron (c) steel (d) graphite
  5. 5.🧱 Which property matters most for a hair band? (a) transparent (b) heat insulator (c) waterproof (d) flexible
  6. 6.Which of these needs an electrical conductor? (a) a window pane (b) the core of a wire (c) a tea flask lining (d) a magnifier lens
  7. 7.🔍 Which is the odd one out? (a) clay pottery (b) cotton cloth (c) dry wood (d) copper
  8. 8.🔍 Which is the odd one out? (a) glass (b) rubber (c) steel (d) dry wood
  9. 9.🧱 Which property matters most for a window pane? (a) waterproof (b) flexible (c) transparent (d) heat insulator
  10. 10.🧱 Which material is best for a raincoat? (a) plastic-coated cloth (b) cardboard (c) paper (d) cotton wool
  11. 11.True or false: a magnifier lens needs a flexible material. (a) False (b) True
  12. 12.Which of these needs a transparent material? (a) a roof sheet (b) a yoga mat (c) a hair band (d) a magnifier lens
  13. 13.Which of these needs a waterproof material? (a) the core of a wire (b) a car windscreen (c) a plug pin (d) a raincoat
  14. 14.Which of these needs a transparent material? (a) a boat hull (b) a window pane (c) the core of a wire (d) a skipping rope
  15. 15.🔍 Which is the odd one out? (a) aluminium (b) graphite (c) steel (d) plastic
  16. 16.Which of these needs a waterproof material? (a) a magnifier lens (b) a spectacle lens (c) a boat hull (d) a hair band
  17. 17.True or false: a cooking pot handle needs a flexible material. (a) True (b) False
  18. 18.Which of these needs a waterproof material? (a) a hair band (b) a yoga mat (c) a water tank (d) a spectacle lens
  19. 19.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  20. 20.🧱 Is rubber an electrical conductor or an insulator? (a) an insulator (b) a conductor
  21. 21.🔍 Which is the odd one out? (a) steel (b) graphite (c) copper (d) glass
  22. 22.🧱 Which material is best for a cooking pot handle? (a) copper (b) aluminium (c) wood or plastic (d) iron
  23. 23.True or false: a skipping rope needs a flexible material. (a) True (b) False
  24. 24.🧱 Which property matters most for a roof sheet? (a) waterproof (b) electrical conductor (c) transparent (d) flexible
  25. 25.🧱 Which property matters most for a skipping rope? (a) heat insulator (b) electrical conductor (c) flexible (d) waterproof
  26. 26.🧱 Which property matters most for a raincoat? (a) waterproof (b) heat insulator (c) electrical conductor (d) flexible
  27. 27.True or false: an umbrella cover needs an electrical conductor. (a) True (b) False
  28. 28.True or false: a magnifier lens needs a heat insulator. (a) False (b) True
  29. 29.🧱 Which property matters most for a magnifier lens? (a) transparent (b) heat insulator (c) waterproof (d) flexible
  30. 30.🧱 Which property matters most for a yoga mat? (a) transparent (b) waterproof (c) heat insulator (d) flexible
  31. 31.🧱 Which material is best for the core of an electric wire? (a) wood (b) glass (c) copper (d) rubber
  32. 32.True or false: a tea flask lining needs a heat insulator. (a) False (b) True
  33. 33.🧱 Which property matters most for a switch contact? (a) electrical conductor (b) transparent (c) flexible (d) waterproof
  34. 34.🧱 Which material is best for a window pane? (a) glass (b) steel (c) wood (d) brick
  35. 35.True or false: a tea flask lining needs a transparent material. (a) True (b) False
  36. 36.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
  37. 37.Which of these needs a heat insulator? (a) a yoga mat (b) a magnifier lens (c) a skipping rope (d) a cooking pot handle
  38. 38.🧱 Which property matters most for an umbrella cover? (a) transparent (b) waterproof (c) heat insulator (d) flexible
  39. 39.🔍 Which is the odd one out? (a) plastic (b) graphite (c) glass (d) cotton cloth
  40. 40.True or false: a roof sheet needs a transparent material. (a) True (b) False

Answer key

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

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