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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 625 · 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 roof sheet needs a waterproof material. (a) True (b) False
  2. 2.Which of these needs a waterproof material? (a) a car windscreen (b) the core of a wire (c) a plug pin (d) a roof sheet
  3. 3.🧱 Which material is best for a window pane? (a) glass (b) steel (c) brick (d) wood
  4. 4.🧱 Is cotton cloth an electrical conductor or an insulator? (a) an insulator (b) a conductor
  5. 5.🧱 Which property matters most for a cooking pot handle? (a) heat insulator (b) flexible (c) waterproof (d) electrical conductor
  6. 6.True or false: a car seat belt needs a transparent material. (a) True (b) False
  7. 7.Which of these needs a transparent material? (a) a roof sheet (b) a water tank (c) a yoga mat (d) a spectacle lens
  8. 8.🔍 Which is the odd one out? (a) graphite (b) aluminium (c) steel (d) dry wood
  9. 9.🧱 Is dry wood an electrical conductor or an insulator? (a) an insulator (b) a conductor
  10. 10.🧱 Which material is best for a raincoat? (a) plastic-coated cloth (b) cardboard (c) cotton wool (d) paper
  11. 11.Which of these needs a transparent material? (a) a tea flask lining (b) a car windscreen (c) a boat hull (d) a hair band
  12. 12.Which of these needs a flexible material? (a) a tea flask lining (b) a plug pin (c) a hair band (d) a spectacle lens
  13. 13.Which of these needs a waterproof material? (a) an oven glove (b) a plug pin (c) a yoga mat (d) a water tank
  14. 14.🧱 Which property matters most for a plug pin? (a) transparent (b) waterproof (c) electrical conductor (d) heat insulator
  15. 15.🧱 Is rubber an electrical conductor or an insulator? (a) a conductor (b) an insulator
  16. 16.🧱 Is clay pottery an electrical conductor or an insulator? (a) an insulator (b) a conductor
  17. 17.Which of these needs a transparent material? (a) a car seat belt (b) an umbrella cover (c) a window pane (d) a roof sheet
  18. 18.🧱 Which material is best for the bars inside concrete? (a) plastic (b) glass (c) rubber (d) steel
  19. 19.True or false: a plug pin needs an electrical conductor. (a) False (b) True
  20. 20.🔍 Which is the odd one out? (a) clay pottery (b) cotton cloth (c) plastic (d) steel
  21. 21.🧱 Is copper an electrical conductor or an insulator? (a) a conductor (b) an insulator
  22. 22.🧱 Which property matters most for an oven glove? (a) waterproof (b) heat insulator (c) electrical conductor (d) flexible
  23. 23.🧱 Which material is best for the core of an electric wire? (a) copper (b) glass (c) rubber (d) wood
  24. 24.Which of these needs a flexible material? (a) a raincoat (b) a yoga mat (c) an oven glove (d) a roof sheet
  25. 25.True or false: a yoga mat needs a flexible material. (a) False (b) True
  26. 26.🧱 Which property matters most for an umbrella cover? (a) heat insulator (b) electrical conductor (c) waterproof (d) transparent
  27. 27.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
  28. 28.🔍 Which is the odd one out? (a) aluminium (b) brass (c) iron (d) plastic
  29. 29.Which of these needs a flexible material? (a) a raincoat (b) a window pane (c) a cooking pot handle (d) a skipping rope
  30. 30.True or false: a switch contact needs an electrical conductor. (a) True (b) False
  31. 31.True or false: a plug pin needs a flexible material. (a) True (b) False
  32. 32.🔍 Which is the odd one out? (a) rubber (b) plastic (c) aluminium (d) cotton cloth
  33. 33.Which of these needs an electrical conductor? (a) a tea flask lining (b) a plug pin (c) a cooking pot handle (d) a spectacle lens
  34. 34.🧱 Which property matters most for a tea flask lining? (a) waterproof (b) heat insulator (c) transparent (d) electrical conductor
  35. 35.Which of these needs an electrical conductor? (a) a roof sheet (b) an oven glove (c) a switch contact (d) a skipping rope
  36. 36.🔍 Which is the odd one out? (a) clay pottery (b) plastic (c) rubber (d) copper
  37. 37.🔍 Which is the odd one out? (a) brass (b) glass (c) plastic (d) cotton cloth
  38. 38.True or false: a roof sheet needs a transparent material. (a) True (b) False
  39. 39.🧱 Which property matters most for a water tank? (a) transparent (b) waterproof (c) electrical conductor (d) heat insulator
  40. 40.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor

Answer key

  1. True
  2. a roof sheet
  3. glass
  4. an insulator
  5. heat insulator
  6. False
  7. a spectacle lens
  8. dry wood
  9. an insulator
  10. plastic-coated cloth
  11. a car windscreen
  12. a hair band
  13. a water tank
  14. electrical conductor
  15. an insulator
  16. an insulator
  17. a window pane
  18. steel
  19. True
  20. steel
  21. a conductor
  22. heat insulator
  23. copper
  24. a yoga mat
  25. True
  26. waterproof
  27. an insulator
  28. plastic
  29. a skipping rope
  30. True
  31. False
  32. aluminium
  33. a plug pin
  34. heat insulator
  35. a switch contact
  36. copper
  37. brass
  38. False
  39. waterproof
  40. a conductor

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