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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 229 · 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 of these needs an electrical conductor? (a) a water tank (b) a plug pin (c) a car windscreen (d) a hair band
  2. 2.🧱 Which material is best for the core of an electric wire? (a) rubber (b) copper (c) glass (d) wood
  3. 3.True or false: an umbrella cover needs a waterproof material. (a) False (b) True
  4. 4.🔍 Which is the odd one out? (a) clay pottery (b) plastic (c) iron (d) rubber
  5. 5.🧱 Which property matters most for a boat hull? (a) electrical conductor (b) heat insulator (c) flexible (d) waterproof
  6. 6.🧱 Which material is best for a window pane? (a) glass (b) wood (c) steel (d) brick
  7. 7.🔍 Which is the odd one out? (a) brass (b) copper (c) dry wood (d) iron
  8. 8.True or false: a spectacle lens needs a transparent material. (a) False (b) True
  9. 9.🧱 Which property matters most for a car windscreen? (a) heat insulator (b) electrical conductor (c) transparent (d) flexible
  10. 10.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  11. 11.🔍 Which is the odd one out? (a) graphite (b) copper (c) clay pottery (d) iron
  12. 12.Which of these needs a waterproof material? (a) a cooking pot handle (b) a spectacle lens (c) a boat hull (d) an oven glove
  13. 13.🔍 Which is the odd one out? (a) steel (b) copper (c) rubber (d) graphite
  14. 14.🔍 Which is the odd one out? (a) iron (b) copper (c) aluminium (d) glass
  15. 15.True or false: a boat hull needs a waterproof material. (a) True (b) False
  16. 16.🧱 Which material is best for a raincoat? (a) paper (b) cotton wool (c) plastic-coated cloth (d) cardboard
  17. 17.Which of these needs an electrical conductor? (a) a water tank (b) a raincoat (c) a switch contact (d) a car seat belt
  18. 18.True or false: a roof sheet needs a waterproof material. (a) True (b) False
  19. 19.🔍 Which is the odd one out? (a) rubber (b) dry wood (c) brass (d) plastic
  20. 20.🔍 Which is the odd one out? (a) rubber (b) cotton cloth (c) graphite (d) glass
  21. 21.Which of these needs a flexible material? (a) an umbrella cover (b) an oven glove (c) a window pane (d) a skipping rope
  22. 22.True or false: a skipping rope needs a flexible material. (a) False (b) True
  23. 23.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
  24. 24.Which of these needs a transparent material? (a) a water tank (b) an umbrella cover (c) a window pane (d) a switch contact
  25. 25.True or false: a car windscreen needs a flexible material. (a) False (b) True
  26. 26.🧱 Which property matters most for a window pane? (a) electrical conductor (b) transparent (c) flexible (d) waterproof
  27. 27.🧱 Is graphite an electrical conductor or an insulator? (a) an insulator (b) a conductor
  28. 28.🧱 Which material is best for the bars inside concrete? (a) plastic (b) glass (c) steel (d) rubber
  29. 29.Which of these needs a flexible material? (a) a plug pin (b) a cooking pot handle (c) a window pane (d) a hair band
  30. 30.Which of these needs a waterproof material? (a) a cooking pot handle (b) an oven glove (c) a water tank (d) a skipping rope
  31. 31.🧱 Which property matters most for an umbrella cover? (a) flexible (b) waterproof (c) heat insulator (d) electrical conductor
  32. 32.🧱 Is glass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  33. 33.True or false: a cooking pot handle needs a waterproof material. (a) False (b) True
  34. 34.🔍 Which is the odd one out? (a) iron (b) steel (c) graphite (d) cotton cloth
  35. 35.🧱 Is dry wood an electrical conductor or an insulator? (a) a conductor (b) an insulator
  36. 36.🧱 Is plastic an electrical conductor or an insulator? (a) an insulator (b) a conductor
  37. 37.True or false: a hair band needs a flexible material. (a) True (b) False
  38. 38.🔍 Which is the odd one out? (a) brass (b) aluminium (c) copper (d) plastic
  39. 39.True or false: a car windscreen needs a transparent material. (a) True (b) False
  40. 40.🧱 Is cotton cloth an electrical conductor or an insulator? (a) a conductor (b) an insulator

Answer key

  1. a plug pin
  2. copper
  3. True
  4. iron
  5. waterproof
  6. glass
  7. dry wood
  8. True
  9. transparent
  10. a conductor
  11. clay pottery
  12. a boat hull
  13. rubber
  14. glass
  15. True
  16. plastic-coated cloth
  17. a switch contact
  18. True
  19. brass
  20. graphite
  21. a skipping rope
  22. True
  23. a conductor
  24. a window pane
  25. False
  26. transparent
  27. a conductor
  28. steel
  29. a hair band
  30. a water tank
  31. waterproof
  32. an insulator
  33. False
  34. cotton cloth
  35. an insulator
  36. an insulator
  37. True
  38. plastic
  39. True
  40. an insulator

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