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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 653 · 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 a waterproof material? (a) an oven glove (b) a car seat belt (c) a car windscreen (d) a raincoat
  2. 2.🧱 Which property matters most for the core of a wire? (a) electrical conductor (b) heat insulator (c) flexible (d) waterproof
  3. 3.True or false: a skipping rope needs an electrical conductor. (a) False (b) True
  4. 4.True or false: a raincoat needs an electrical conductor. (a) True (b) False
  5. 5.Which of these needs a waterproof material? (a) a tea flask lining (b) a hair band (c) a window pane (d) a boat hull
  6. 6.Which of these needs a flexible material? (a) a raincoat (b) a yoga mat (c) a roof sheet (d) a spectacle lens
  7. 7.🧱 Is plastic an electrical conductor or an insulator? (a) an insulator (b) a conductor
  8. 8.Which of these needs a transparent material? (a) an oven glove (b) a boat hull (c) a spectacle lens (d) a raincoat
  9. 9.Which of these needs an electrical conductor? (a) a spectacle lens (b) a switch contact (c) a yoga mat (d) a skipping rope
  10. 10.🔍 Which is the odd one out? (a) aluminium (b) plastic (c) steel (d) graphite
  11. 11.🧱 Which material is best for a window pane? (a) brick (b) wood (c) glass (d) steel
  12. 12.🧱 Is glass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  13. 13.🧱 Which property matters most for a plug pin? (a) flexible (b) heat insulator (c) electrical conductor (d) waterproof
  14. 14.Which of these needs a heat insulator? (a) a tea flask lining (b) a water tank (c) a window pane (d) a car seat belt
  15. 15.🧱 Which property matters most for an umbrella cover? (a) flexible (b) heat insulator (c) waterproof (d) transparent
  16. 16.🧱 Is aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
  17. 17.True or false: a car seat belt needs a waterproof material. (a) True (b) False
  18. 18.🔍 Which is the odd one out? (a) rubber (b) aluminium (c) brass (d) copper
  19. 19.🧱 Is brass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  20. 20.🧱 Which material is best for the core of an electric wire? (a) copper (b) rubber (c) glass (d) wood
  21. 21.🧱 Which material is best for a raincoat? (a) plastic-coated cloth (b) paper (c) cardboard (d) cotton wool
  22. 22.True or false: a car windscreen needs a flexible material. (a) False (b) True
  23. 23.🔍 Which is the odd one out? (a) iron (b) cotton cloth (c) aluminium (d) steel
  24. 24.🧱 Which property matters most for a raincoat? (a) heat insulator (b) transparent (c) flexible (d) waterproof
  25. 25.🧱 Is graphite an electrical conductor or an insulator? (a) an insulator (b) a conductor
  26. 26.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  27. 27.🔍 Which is the odd one out? (a) cotton cloth (b) glass (c) dry wood (d) iron
  28. 28.🧱 Which property matters most for a cooking pot handle? (a) electrical conductor (b) waterproof (c) transparent (d) heat insulator
  29. 29.🧱 Which material is best for a cooking pot handle? (a) copper (b) aluminium (c) iron (d) wood or plastic
  30. 30.🔍 Which is the odd one out? (a) dry wood (b) glass (c) rubber (d) aluminium
  31. 31.Which of these needs a flexible material? (a) a boat hull (b) a spectacle lens (c) a raincoat (d) a car seat belt
  32. 32.🔍 Which is the odd one out? (a) dry wood (b) graphite (c) rubber (d) cotton cloth
  33. 33.Which of these needs a waterproof material? (a) a magnifier lens (b) a window pane (c) an oven glove (d) an umbrella cover
  34. 34.🧱 Which property matters most for a yoga mat? (a) transparent (b) waterproof (c) electrical conductor (d) flexible
  35. 35.True or false: a window pane needs a flexible material. (a) False (b) True
  36. 36.Which of these needs a flexible material? (a) a spectacle lens (b) a skipping rope (c) a water tank (d) a tea flask lining
  37. 37.True or false: an umbrella cover needs a waterproof material. (a) True (b) False
  38. 38.🧱 Which property matters most for a window pane? (a) heat insulator (b) waterproof (c) transparent (d) flexible
  39. 39.🧱 Which material is best for the bars inside concrete? (a) plastic (b) rubber (c) glass (d) steel
  40. 40.🧱 Which property matters most for a switch contact? (a) waterproof (b) heat insulator (c) electrical conductor (d) flexible

Answer key

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

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