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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 137 · 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 is the odd one out? (a) iron (b) steel (c) graphite (d) rubber
  2. 2.Which of these needs a transparent material? (a) a raincoat (b) a car windscreen (c) a water tank (d) an oven glove
  3. 3.🔍 Which is the odd one out? (a) iron (b) clay pottery (c) rubber (d) glass
  4. 4.🧱 Is clay pottery an electrical conductor or an insulator? (a) a conductor (b) an insulator
  5. 5.🧱 Is cotton cloth an electrical conductor or an insulator? (a) a conductor (b) an insulator
  6. 6.🔍 Which is the odd one out? (a) aluminium (b) brass (c) steel (d) plastic
  7. 7.🧱 Is rubber an electrical conductor or an insulator? (a) an insulator (b) a conductor
  8. 8.🧱 Which material is best for the core of an electric wire? (a) wood (b) rubber (c) glass (d) copper
  9. 9.🧱 Is steel an electrical conductor or an insulator? (a) a conductor (b) an insulator
  10. 10.🧱 Which property matters most for a plug pin? (a) waterproof (b) transparent (c) flexible (d) electrical conductor
  11. 11.🔍 Which is the odd one out? (a) aluminium (b) copper (c) iron (d) clay pottery
  12. 12.Which of these needs a waterproof material? (a) a magnifier lens (b) a cooking pot handle (c) a yoga mat (d) a boat hull
  13. 13.🧱 Is dry wood an electrical conductor or an insulator? (a) an insulator (b) a conductor
  14. 14.True or false: the core of a wire needs a waterproof material. (a) True (b) False
  15. 15.🧱 Which material is best for a window pane? (a) glass (b) brick (c) steel (d) wood
  16. 16.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  17. 17.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  18. 18.🔍 Which is the odd one out? (a) copper (b) steel (c) dry wood (d) brass
  19. 19.True or false: a roof sheet needs a waterproof material. (a) False (b) True
  20. 20.Which of these needs a waterproof material? (a) an umbrella cover (b) a switch contact (c) a hair band (d) a magnifier lens
  21. 21.True or false: an umbrella cover needs a waterproof material. (a) True (b) False
  22. 22.🧱 Is glass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  23. 23.Which of these needs a heat insulator? (a) an oven glove (b) a car windscreen (c) a yoga mat (d) a roof sheet
  24. 24.🧱 Which property matters most for a window pane? (a) transparent (b) electrical conductor (c) waterproof (d) heat insulator
  25. 25.True or false: a spectacle lens needs a transparent material. (a) False (b) True
  26. 26.🔍 Which is the odd one out? (a) plastic (b) glass (c) dry wood (d) brass
  27. 27.🧱 Which property matters most for a magnifier lens? (a) electrical conductor (b) flexible (c) heat insulator (d) transparent
  28. 28.True or false: a boat hull needs a waterproof material. (a) False (b) True
  29. 29.🧱 Which property matters most for a car seat belt? (a) heat insulator (b) waterproof (c) flexible (d) electrical conductor
  30. 30.🧱 Which material is best for a cooking pot handle? (a) copper (b) iron (c) aluminium (d) wood or plastic
  31. 31.🧱 Which property matters most for a raincoat? (a) waterproof (b) flexible (c) heat insulator (d) electrical conductor
  32. 32.True or false: a water tank needs a waterproof material. (a) True (b) False
  33. 33.Which of these needs a heat insulator? (a) a hair band (b) a raincoat (c) an umbrella cover (d) a tea flask lining
  34. 34.True or false: a car windscreen needs a waterproof material. (a) False (b) True
  35. 35.🧱 Which property matters most for a spectacle lens? (a) waterproof (b) flexible (c) transparent (d) electrical conductor
  36. 36.Which of these needs a flexible material? (a) a skipping rope (b) an oven glove (c) a tea flask lining (d) a magnifier lens
  37. 37.🧱 Which property matters most for a boat hull? (a) transparent (b) electrical conductor (c) flexible (d) waterproof
  38. 38.🧱 Which material is best for a raincoat? (a) cotton wool (b) plastic-coated cloth (c) cardboard (d) paper
  39. 39.Which of these needs a flexible material? (a) a plug pin (b) a tea flask lining (c) a boat hull (d) a yoga mat
  40. 40.🧱 Is brass an electrical conductor or an insulator? (a) an insulator (b) a conductor

Answer key

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

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