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Engineering Worksheet: Materials

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

Answer key

  1. a roof sheet
  2. a conductor
  3. iron
  4. wood or plastic
  5. copper
  6. dry wood
  7. transparent
  8. True
  9. True
  10. clay pottery
  11. waterproof
  12. a switch contact
  13. steel
  14. an insulator
  15. an insulator
  16. cotton cloth
  17. glass
  18. a cooking pot handle
  19. flexible
  20. an umbrella cover
  21. an insulator
  22. plastic-coated cloth
  23. plastic
  24. aluminium
  25. a car windscreen
  26. transparent
  27. graphite
  28. an oven glove
  29. False
  30. a conductor
  31. heat insulator
  32. False
  33. electrical conductor
  34. an insulator
  35. a magnifier lens
  36. False
  37. a skipping rope
  38. True
  39. a conductor
  40. brass

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