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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 647 · 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 cooking pot handle needs a transparent material. (a) True (b) False
  2. 2.🧱 Is cotton cloth an electrical conductor or an insulator? (a) an insulator (b) a conductor
  3. 3.True or false: a roof sheet needs a flexible material. (a) False (b) True
  4. 4.🧱 Which property matters most for a boat hull? (a) transparent (b) waterproof (c) flexible (d) heat insulator
  5. 5.🔍 Which is the odd one out? (a) aluminium (b) iron (c) glass (d) brass
  6. 6.🧱 Which material is best for the core of an electric wire? (a) wood (b) rubber (c) glass (d) copper
  7. 7.Which of these needs a flexible material? (a) a water tank (b) a plug pin (c) a skipping rope (d) a car windscreen
  8. 8.🔍 Which is the odd one out? (a) aluminium (b) copper (c) dry wood (d) steel
  9. 9.🔍 Which is the odd one out? (a) brass (b) aluminium (c) iron (d) rubber
  10. 10.Which of these needs a waterproof material? (a) a car windscreen (b) a hair band (c) a switch contact (d) a raincoat
  11. 11.True or false: a water tank needs a heat insulator. (a) True (b) False
  12. 12.🧱 Is clay pottery an electrical conductor or an insulator? (a) a conductor (b) an insulator
  13. 13.🧱 Which material is best for a window pane? (a) glass (b) wood (c) brick (d) steel
  14. 14.Which of these needs a transparent material? (a) an oven glove (b) a skipping rope (c) a car windscreen (d) an umbrella cover
  15. 15.🧱 Which material is best for a raincoat? (a) plastic-coated cloth (b) cotton wool (c) cardboard (d) paper
  16. 16.Which of these needs a transparent material? (a) a roof sheet (b) a hair band (c) an umbrella cover (d) a spectacle lens
  17. 17.Which of these needs a flexible material? (a) a spectacle lens (b) an umbrella cover (c) a plug pin (d) a hair band
  18. 18.🧱 Which property matters most for a water tank? (a) electrical conductor (b) waterproof (c) transparent (d) flexible
  19. 19.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
  20. 20.🧱 Which property matters most for the core of a wire? (a) transparent (b) flexible (c) electrical conductor (d) waterproof
  21. 21.Which of these needs an electrical conductor? (a) an oven glove (b) an umbrella cover (c) a plug pin (d) a skipping rope
  22. 22.🧱 Which property matters most for a cooking pot handle? (a) electrical conductor (b) flexible (c) waterproof (d) heat insulator
  23. 23.🧱 Which property matters most for a window pane? (a) heat insulator (b) flexible (c) electrical conductor (d) transparent
  24. 24.🧱 Is aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
  25. 25.🧱 Which property matters most for a spectacle lens? (a) waterproof (b) transparent (c) flexible (d) heat insulator
  26. 26.True or false: the core of a wire needs an electrical conductor. (a) False (b) True
  27. 27.True or false: a magnifier lens needs a flexible material. (a) False (b) True
  28. 28.🧱 Which property matters most for a tea flask lining? (a) waterproof (b) electrical conductor (c) transparent (d) heat insulator
  29. 29.🧱 Which property matters most for a car windscreen? (a) transparent (b) electrical conductor (c) heat insulator (d) flexible
  30. 30.Which of these needs a waterproof material? (a) the core of a wire (b) a yoga mat (c) a water tank (d) a car seat belt
  31. 31.🔍 Which is the odd one out? (a) clay pottery (b) rubber (c) cotton cloth (d) brass
  32. 32.🔍 Which is the odd one out? (a) graphite (b) cotton cloth (c) clay pottery (d) dry wood
  33. 33.🔍 Which is the odd one out? (a) graphite (b) cotton cloth (c) steel (d) iron
  34. 34.🔍 Which is the odd one out? (a) cotton cloth (b) clay pottery (c) plastic (d) copper
  35. 35.🧱 Which material is best for the bars inside concrete? (a) steel (b) glass (c) rubber (d) plastic
  36. 36.True or false: a switch contact needs an electrical conductor. (a) True (b) False
  37. 37.True or false: a boat hull needs an electrical conductor. (a) True (b) False
  38. 38.🧱 Which property matters most for a skipping rope? (a) electrical conductor (b) flexible (c) transparent (d) heat insulator
  39. 39.🧱 Which property matters most for a hair band? (a) waterproof (b) flexible (c) electrical conductor (d) transparent
  40. 40.Which of these needs a heat insulator? (a) a plug pin (b) a tea flask lining (c) an umbrella cover (d) a car seat belt

Answer key

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

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