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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 784 · 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 spectacle lens needs a waterproof material. (a) True (b) False
  2. 2.🧱 Which property matters most for a window pane? (a) electrical conductor (b) waterproof (c) flexible (d) transparent
  3. 3.🧱 Which material is best for a raincoat? (a) cotton wool (b) plastic-coated cloth (c) paper (d) cardboard
  4. 4.Which of these needs an electrical conductor? (a) a switch contact (b) a tea flask lining (c) an umbrella cover (d) a car seat belt
  5. 5.Which of these needs a heat insulator? (a) a roof sheet (b) a hair band (c) a window pane (d) a tea flask lining
  6. 6.🔍 Which is the odd one out? (a) clay pottery (b) cotton cloth (c) aluminium (d) dry wood
  7. 7.🔍 Which is the odd one out? (a) clay pottery (b) cotton cloth (c) iron (d) plastic
  8. 8.Which of these needs a transparent material? (a) a boat hull (b) a yoga mat (c) a car seat belt (d) a spectacle lens
  9. 9.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  10. 10.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
  11. 11.True or false: an umbrella cover needs a waterproof material. (a) True (b) False
  12. 12.True or false: a raincoat needs a waterproof material. (a) True (b) False
  13. 13.🧱 Which property matters most for a skipping rope? (a) waterproof (b) electrical conductor (c) heat insulator (d) flexible
  14. 14.🧱 Is dry wood an electrical conductor or an insulator? (a) a conductor (b) an insulator
  15. 15.True or false: a cooking pot handle needs a heat insulator. (a) True (b) False
  16. 16.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  17. 17.Which of these needs a waterproof material? (a) a spectacle lens (b) a yoga mat (c) a roof sheet (d) a switch contact
  18. 18.Which of these needs a transparent material? (a) a window pane (b) a boat hull (c) a plug pin (d) a skipping rope
  19. 19.🧱 Which property matters most for a roof sheet? (a) waterproof (b) electrical conductor (c) transparent (d) heat insulator
  20. 20.True or false: a magnifier lens needs a transparent material. (a) True (b) False
  21. 21.🧱 Is cotton cloth an electrical conductor or an insulator? (a) an insulator (b) a conductor
  22. 22.🧱 Which material is best for the bars inside concrete? (a) glass (b) rubber (c) plastic (d) steel
  23. 23.True or false: a car seat belt needs a flexible material. (a) True (b) False
  24. 24.🧱 Is brass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  25. 25.🧱 Which property matters most for a car windscreen? (a) heat insulator (b) waterproof (c) electrical conductor (d) transparent
  26. 26.🧱 Which property matters most for a hair band? (a) heat insulator (b) waterproof (c) flexible (d) transparent
  27. 27.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
  28. 28.🧱 Is graphite an electrical conductor or an insulator? (a) a conductor (b) an insulator
  29. 29.Which of these needs a heat insulator? (a) a cooking pot handle (b) a roof sheet (c) a skipping rope (d) a spectacle lens
  30. 30.🔍 Which is the odd one out? (a) steel (b) brass (c) copper (d) plastic
  31. 31.True or false: a spectacle lens needs a heat insulator. (a) True (b) False
  32. 32.🔍 Which is the odd one out? (a) plastic (b) copper (c) dry wood (d) cotton cloth
  33. 33.🧱 Which property matters most for a raincoat? (a) heat insulator (b) waterproof (c) electrical conductor (d) transparent
  34. 34.🧱 Which property matters most for a car seat belt? (a) waterproof (b) heat insulator (c) flexible (d) transparent
  35. 35.True or false: a skipping rope needs a flexible material. (a) False (b) True
  36. 36.🔍 Which is the odd one out? (a) rubber (b) graphite (c) copper (d) aluminium
  37. 37.🔍 Which is the odd one out? (a) dry wood (b) clay pottery (c) plastic (d) graphite
  38. 38.🧱 Which property matters most for a boat hull? (a) heat insulator (b) flexible (c) waterproof (d) transparent
  39. 39.🧱 Which material is best for a window pane? (a) glass (b) steel (c) brick (d) wood
  40. 40.🧱 Which property matters most for an umbrella cover? (a) waterproof (b) electrical conductor (c) heat insulator (d) flexible

Answer key

  1. False
  2. transparent
  3. plastic-coated cloth
  4. a switch contact
  5. a tea flask lining
  6. aluminium
  7. iron
  8. a spectacle lens
  9. a conductor
  10. a conductor
  11. True
  12. True
  13. flexible
  14. an insulator
  15. True
  16. a conductor
  17. a roof sheet
  18. a window pane
  19. waterproof
  20. True
  21. an insulator
  22. steel
  23. True
  24. a conductor
  25. transparent
  26. flexible
  27. an insulator
  28. a conductor
  29. a cooking pot handle
  30. plastic
  31. False
  32. copper
  33. waterproof
  34. flexible
  35. True
  36. rubber
  37. graphite
  38. waterproof
  39. glass
  40. waterproof

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