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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 102 · 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 window pane needs a transparent material. (a) True (b) False
  2. 2.Which of these needs a heat insulator? (a) a magnifier lens (b) a cooking pot handle (c) a raincoat (d) a yoga mat
  3. 3.🧱 Which property matters most for a spectacle lens? (a) heat insulator (b) electrical conductor (c) waterproof (d) transparent
  4. 4.True or false: a tea flask lining needs a heat insulator. (a) False (b) True
  5. 5.Which of these needs an electrical conductor? (a) a roof sheet (b) the core of a wire (c) an umbrella cover (d) a cooking pot handle
  6. 6.🧱 Which material is best for the bars inside concrete? (a) steel (b) glass (c) rubber (d) plastic
  7. 7.True or false: a roof sheet needs a waterproof material. (a) False (b) True
  8. 8.🔍 Which is the odd one out? (a) dry wood (b) steel (c) glass (d) plastic
  9. 9.True or false: a tea flask lining needs a waterproof material. (a) True (b) False
  10. 10.🧱 Is clay pottery an electrical conductor or an insulator? (a) an insulator (b) a conductor
  11. 11.🔍 Which is the odd one out? (a) dry wood (b) brass (c) iron (d) copper
  12. 12.🧱 Which property matters most for a water tank? (a) flexible (b) waterproof (c) transparent (d) heat insulator
  13. 13.🧱 Which material is best for a window pane? (a) brick (b) steel (c) glass (d) wood
  14. 14.True or false: a switch contact needs a flexible material. (a) True (b) False
  15. 15.True or false: a water tank needs a transparent material. (a) False (b) True
  16. 16.Which of these needs an electrical conductor? (a) a magnifier lens (b) a tea flask lining (c) a switch contact (d) a water tank
  17. 17.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  18. 18.🧱 Which material is best for the core of an electric wire? (a) wood (b) rubber (c) copper (d) glass
  19. 19.🧱 Which property matters most for a roof sheet? (a) waterproof (b) electrical conductor (c) heat insulator (d) flexible
  20. 20.Which of these needs a transparent material? (a) a spectacle lens (b) a raincoat (c) a yoga mat (d) the core of a wire
  21. 21.🧱 Is cotton cloth an electrical conductor or an insulator? (a) a conductor (b) an insulator
  22. 22.Which of these needs an electrical conductor? (a) a hair band (b) a cooking pot handle (c) a skipping rope (d) a plug pin
  23. 23.🧱 Which material is best for a cooking pot handle? (a) iron (b) aluminium (c) wood or plastic (d) copper
  24. 24.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
  25. 25.🧱 Which property matters most for a window pane? (a) transparent (b) flexible (c) heat insulator (d) waterproof
  26. 26.True or false: a skipping rope needs a flexible material. (a) True (b) False
  27. 27.🧱 Which property matters most for a raincoat? (a) transparent (b) waterproof (c) flexible (d) heat insulator
  28. 28.Which of these needs a waterproof material? (a) an umbrella cover (b) a hair band (c) an oven glove (d) a car seat belt
  29. 29.🔍 Which is the odd one out? (a) graphite (b) steel (c) cotton cloth (d) iron
  30. 30.Which of these needs a heat insulator? (a) an oven glove (b) a hair band (c) a car seat belt (d) a yoga mat
  31. 31.Which of these needs a flexible material? (a) a car windscreen (b) a tea flask lining (c) a raincoat (d) a hair band
  32. 32.🧱 Which property matters most for a car seat belt? (a) flexible (b) heat insulator (c) electrical conductor (d) waterproof
  33. 33.🧱 Which property matters most for a boat hull? (a) heat insulator (b) waterproof (c) flexible (d) electrical conductor
  34. 34.🔍 Which is the odd one out? (a) graphite (b) aluminium (c) clay pottery (d) brass
  35. 35.🧱 Which property matters most for an umbrella cover? (a) heat insulator (b) electrical conductor (c) waterproof (d) transparent
  36. 36.Which of these needs a transparent material? (a) a water tank (b) a car seat belt (c) the core of a wire (d) a window pane
  37. 37.Which of these needs a waterproof material? (a) a car windscreen (b) the core of a wire (c) a roof sheet (d) a magnifier lens
  38. 38.🧱 Which material is best for a raincoat? (a) plastic-coated cloth (b) paper (c) cotton wool (d) cardboard
  39. 39.🔍 Which is the odd one out? (a) plastic (b) clay pottery (c) copper (d) dry wood
  40. 40.True or false: a hair band needs a flexible material. (a) False (b) True

Answer key

  1. True
  2. a cooking pot handle
  3. transparent
  4. True
  5. the core of a wire
  6. steel
  7. True
  8. steel
  9. False
  10. an insulator
  11. dry wood
  12. waterproof
  13. glass
  14. False
  15. False
  16. a switch contact
  17. a conductor
  18. copper
  19. waterproof
  20. a spectacle lens
  21. an insulator
  22. a plug pin
  23. wood or plastic
  24. an insulator
  25. transparent
  26. True
  27. waterproof
  28. an umbrella cover
  29. cotton cloth
  30. an oven glove
  31. a hair band
  32. flexible
  33. waterproof
  34. clay pottery
  35. waterproof
  36. a window pane
  37. a roof sheet
  38. plastic-coated cloth
  39. copper
  40. True

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