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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 782 · 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) False (b) True
  2. 2.Which of these needs a flexible material? (a) a tea flask lining (b) a water tank (c) a boat hull (d) a yoga mat
  3. 3.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
  4. 4.True or false: a switch contact needs a heat insulator. (a) False (b) True
  5. 5.🧱 Which material is best for a cooking pot handle? (a) copper (b) wood or plastic (c) aluminium (d) iron
  6. 6.🧱 Which material is best for a raincoat? (a) cotton wool (b) cardboard (c) plastic-coated cloth (d) paper
  7. 7.🔍 Which is the odd one out? (a) graphite (b) cotton cloth (c) copper (d) brass
  8. 8.Which of these needs a heat insulator? (a) a magnifier lens (b) a car seat belt (c) a car windscreen (d) an oven glove
  9. 9.True or false: a yoga mat needs a flexible material. (a) True (b) False
  10. 10.True or false: a raincoat needs a waterproof material. (a) False (b) True
  11. 11.🔍 Which is the odd one out? (a) plastic (b) copper (c) iron (d) brass
  12. 12.Which of these needs a waterproof material? (a) a hair band (b) a raincoat (c) a cooking pot handle (d) a car windscreen
  13. 13.True or false: a magnifier lens needs a flexible material. (a) False (b) True
  14. 14.True or false: a window pane needs a heat insulator. (a) True (b) False
  15. 15.🔍 Which is the odd one out? (a) iron (b) dry wood (c) brass (d) copper
  16. 16.Which of these needs a waterproof material? (a) a switch contact (b) an umbrella cover (c) a cooking pot handle (d) a yoga mat
  17. 17.🧱 Which material is best for a window pane? (a) glass (b) wood (c) brick (d) steel
  18. 18.🧱 Which property matters most for a boat hull? (a) transparent (b) waterproof (c) flexible (d) electrical conductor
  19. 19.🧱 Is glass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  20. 20.🧱 Is copper an electrical conductor or an insulator? (a) a conductor (b) an insulator
  21. 21.Which of these needs a transparent material? (a) a car seat belt (b) a window pane (c) a boat hull (d) a switch contact
  22. 22.🧱 Is aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
  23. 23.Which of these needs a flexible material? (a) a cooking pot handle (b) a car windscreen (c) a water tank (d) a skipping rope
  24. 24.🧱 Which property matters most for a hair band? (a) transparent (b) electrical conductor (c) flexible (d) heat insulator
  25. 25.🧱 Which property matters most for an umbrella cover? (a) transparent (b) waterproof (c) electrical conductor (d) flexible
  26. 26.🔍 Which is the odd one out? (a) rubber (b) aluminium (c) brass (d) graphite
  27. 27.🧱 Which material is best for the core of an electric wire? (a) copper (b) wood (c) rubber (d) glass
  28. 28.🧱 Is cotton cloth an electrical conductor or an insulator? (a) a conductor (b) an insulator
  29. 29.Which of these needs a heat insulator? (a) a water tank (b) a tea flask lining (c) a magnifier lens (d) a car seat belt
  30. 30.🧱 Which property matters most for a raincoat? (a) electrical conductor (b) waterproof (c) flexible (d) heat insulator
  31. 31.True or false: a car windscreen needs a transparent material. (a) True (b) False
  32. 32.🧱 Which property matters most for a spectacle lens? (a) flexible (b) heat insulator (c) electrical conductor (d) transparent
  33. 33.🧱 Which property matters most for a switch contact? (a) flexible (b) electrical conductor (c) heat insulator (d) waterproof
  34. 34.🔍 Which is the odd one out? (a) plastic (b) glass (c) rubber (d) aluminium
  35. 35.🧱 Is graphite an electrical conductor or an insulator? (a) an insulator (b) a conductor
  36. 36.True or false: a boat hull needs a waterproof material. (a) True (b) False
  37. 37.Which of these needs a flexible material? (a) a window pane (b) a car seat belt (c) a raincoat (d) a tea flask lining
  38. 38.🧱 Which property matters most for a car windscreen? (a) waterproof (b) heat insulator (c) transparent (d) flexible
  39. 39.True or false: a car seat belt needs a transparent material. (a) False (b) True
  40. 40.🔍 Which is the odd one out? (a) glass (b) brass (c) copper (d) iron

Answer key

  1. True
  2. a yoga mat
  3. an insulator
  4. False
  5. wood or plastic
  6. plastic-coated cloth
  7. cotton cloth
  8. an oven glove
  9. True
  10. True
  11. plastic
  12. a raincoat
  13. False
  14. False
  15. dry wood
  16. an umbrella cover
  17. glass
  18. waterproof
  19. an insulator
  20. a conductor
  21. a window pane
  22. a conductor
  23. a skipping rope
  24. flexible
  25. waterproof
  26. rubber
  27. copper
  28. an insulator
  29. a tea flask lining
  30. waterproof
  31. True
  32. transparent
  33. electrical conductor
  34. aluminium
  35. a conductor
  36. True
  37. a car seat belt
  38. transparent
  39. False
  40. glass

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