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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 130 · 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.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
  2. 2.Which of these needs a flexible material? (a) the core of a wire (b) a skipping rope (c) a tea flask lining (d) a roof sheet
  3. 3.True or false: a boat hull needs a waterproof material. (a) False (b) True
  4. 4.🔍 Which is the odd one out? (a) rubber (b) glass (c) aluminium (d) cotton cloth
  5. 5.🧱 Which property matters most for a tea flask lining? (a) electrical conductor (b) heat insulator (c) transparent (d) flexible
  6. 6.True or false: a window pane needs a waterproof material. (a) False (b) True
  7. 7.🔍 Which is the odd one out? (a) dry wood (b) clay pottery (c) plastic (d) steel
  8. 8.🧱 Which property matters most for a switch contact? (a) transparent (b) waterproof (c) flexible (d) electrical conductor
  9. 9.🧱 Which material is best for a raincoat? (a) plastic-coated cloth (b) paper (c) cardboard (d) cotton wool
  10. 10.🧱 Which property matters most for an umbrella cover? (a) flexible (b) waterproof (c) transparent (d) heat insulator
  11. 11.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  12. 12.True or false: an umbrella cover needs a flexible material. (a) True (b) False
  13. 13.Which of these needs an electrical conductor? (a) a plug pin (b) a spectacle lens (c) a water tank (d) an umbrella cover
  14. 14.🧱 Which material is best for the core of an electric wire? (a) wood (b) rubber (c) glass (d) copper
  15. 15.True or false: a roof sheet needs a transparent material. (a) True (b) False
  16. 16.Which of these needs a transparent material? (a) a yoga mat (b) an oven glove (c) a magnifier lens (d) the core of a wire
  17. 17.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  18. 18.🧱 Which material is best for a window pane? (a) glass (b) brick (c) steel (d) wood
  19. 19.🔍 Which is the odd one out? (a) plastic (b) copper (c) dry wood (d) cotton cloth
  20. 20.🧱 Which property matters most for a spectacle lens? (a) electrical conductor (b) transparent (c) heat insulator (d) flexible
  21. 21.🔍 Which is the odd one out? (a) iron (b) copper (c) aluminium (d) dry wood
  22. 22.🔍 Which is the odd one out? (a) plastic (b) clay pottery (c) iron (d) dry wood
  23. 23.🔍 Which is the odd one out? (a) iron (b) rubber (c) brass (d) copper
  24. 24.🧱 Which material is best for a cooking pot handle? (a) iron (b) copper (c) wood or plastic (d) aluminium
  25. 25.🧱 Which property matters most for a yoga mat? (a) waterproof (b) flexible (c) transparent (d) electrical conductor
  26. 26.🧱 Which property matters most for a skipping rope? (a) heat insulator (b) waterproof (c) electrical conductor (d) flexible
  27. 27.🧱 Is graphite an electrical conductor or an insulator? (a) an insulator (b) a conductor
  28. 28.Which of these needs a heat insulator? (a) an oven glove (b) an umbrella cover (c) a spectacle lens (d) a boat hull
  29. 29.True or false: a tea flask lining needs a heat insulator. (a) False (b) True
  30. 30.Which of these needs a flexible material? (a) a window pane (b) a switch contact (c) a cooking pot handle (d) a yoga mat
  31. 31.True or false: a boat hull needs an electrical conductor. (a) True (b) False
  32. 32.Which of these needs a waterproof material? (a) a hair band (b) a water tank (c) a magnifier lens (d) a yoga mat
  33. 33.True or false: a water tank needs a heat insulator. (a) True (b) False
  34. 34.🔍 Which is the odd one out? (a) steel (b) glass (c) brass (d) copper
  35. 35.🧱 Which property matters most for a window pane? (a) flexible (b) transparent (c) electrical conductor (d) heat insulator
  36. 36.🧱 Is cotton cloth an electrical conductor or an insulator? (a) an insulator (b) a conductor
  37. 37.Which of these needs a heat insulator? (a) a switch contact (b) a cooking pot handle (c) a car seat belt (d) a water tank
  38. 38.🧱 Which property matters most for a magnifier lens? (a) waterproof (b) electrical conductor (c) flexible (d) transparent
  39. 39.True or false: a skipping rope needs a flexible material. (a) True (b) False
  40. 40.Which of these needs a flexible material? (a) an umbrella cover (b) a tea flask lining (c) a roof sheet (d) a car seat belt

Answer key

  1. an insulator
  2. a skipping rope
  3. True
  4. aluminium
  5. heat insulator
  6. False
  7. steel
  8. electrical conductor
  9. plastic-coated cloth
  10. waterproof
  11. a conductor
  12. False
  13. a plug pin
  14. copper
  15. False
  16. a magnifier lens
  17. a conductor
  18. glass
  19. copper
  20. transparent
  21. dry wood
  22. iron
  23. rubber
  24. wood or plastic
  25. flexible
  26. flexible
  27. a conductor
  28. an oven glove
  29. True
  30. a yoga mat
  31. False
  32. a water tank
  33. False
  34. glass
  35. transparent
  36. an insulator
  37. a cooking pot handle
  38. transparent
  39. True
  40. a car seat belt

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