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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 870 · 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 material is best for a raincoat? (a) cotton wool (b) plastic-coated cloth (c) paper (d) cardboard
  2. 2.🧱 Which property matters most for a spectacle lens? (a) flexible (b) transparent (c) waterproof (d) electrical conductor
  3. 3.🧱 Which property matters most for a magnifier lens? (a) waterproof (b) flexible (c) heat insulator (d) transparent
  4. 4.Which of these needs a flexible material? (a) a water tank (b) the core of a wire (c) a magnifier lens (d) a car seat belt
  5. 5.True or false: a window pane needs a transparent material. (a) False (b) True
  6. 6.🔍 Which is the odd one out? (a) graphite (b) iron (c) rubber (d) copper
  7. 7.🧱 Which property matters most for a skipping rope? (a) waterproof (b) heat insulator (c) electrical conductor (d) flexible
  8. 8.🧱 Which material is best for a cooking pot handle? (a) wood or plastic (b) iron (c) aluminium (d) copper
  9. 9.🧱 Which property matters most for a car windscreen? (a) waterproof (b) heat insulator (c) transparent (d) flexible
  10. 10.🧱 Is dry wood an electrical conductor or an insulator? (a) an insulator (b) a conductor
  11. 11.🧱 Which property matters most for a tea flask lining? (a) electrical conductor (b) waterproof (c) flexible (d) heat insulator
  12. 12.Which of these needs a waterproof material? (a) a cooking pot handle (b) a skipping rope (c) a switch contact (d) a boat hull
  13. 13.Which of these needs an electrical conductor? (a) the core of a wire (b) an umbrella cover (c) a cooking pot handle (d) a car seat belt
  14. 14.True or false: an umbrella cover needs a waterproof material. (a) True (b) False
  15. 15.Which of these needs an electrical conductor? (a) an umbrella cover (b) an oven glove (c) a switch contact (d) a car seat belt
  16. 16.True or false: a yoga mat needs a flexible material. (a) False (b) True
  17. 17.🔍 Which is the odd one out? (a) copper (b) plastic (c) brass (d) steel
  18. 18.Which of these needs a transparent material? (a) a tea flask lining (b) a car windscreen (c) a car seat belt (d) a raincoat
  19. 19.🧱 Which property matters most for a boat hull? (a) transparent (b) flexible (c) electrical conductor (d) waterproof
  20. 20.🧱 Is iron an electrical conductor or an insulator? (a) a conductor (b) an insulator
  21. 21.🔍 Which is the odd one out? (a) copper (b) brass (c) glass (d) aluminium
  22. 22.Which of these needs a waterproof material? (a) a spectacle lens (b) a raincoat (c) a hair band (d) a skipping rope
  23. 23.🔍 Which is the odd one out? (a) plastic (b) clay pottery (c) dry wood (d) iron
  24. 24.🔍 Which is the odd one out? (a) dry wood (b) glass (c) clay pottery (d) aluminium
  25. 25.Which of these needs a transparent material? (a) an oven glove (b) a spectacle lens (c) a boat hull (d) the core of a wire
  26. 26.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
  27. 27.True or false: a water tank needs a flexible material. (a) False (b) True
  28. 28.Which of these needs a heat insulator? (a) a switch contact (b) an oven glove (c) a boat hull (d) an umbrella cover
  29. 29.True or false: a car windscreen needs a heat insulator. (a) False (b) True
  30. 30.Which of these needs a heat insulator? (a) a tea flask lining (b) the core of a wire (c) a switch contact (d) a boat hull
  31. 31.🧱 Is glass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  32. 32.🧱 Which property matters most for a switch contact? (a) electrical conductor (b) heat insulator (c) flexible (d) transparent
  33. 33.True or false: an umbrella cover needs a flexible material. (a) False (b) True
  34. 34.🧱 Which property matters most for a yoga mat? (a) transparent (b) heat insulator (c) waterproof (d) flexible
  35. 35.🧱 Is copper an electrical conductor or an insulator? (a) a conductor (b) an insulator
  36. 36.🧱 Which material is best for the core of an electric wire? (a) wood (b) rubber (c) glass (d) copper
  37. 37.🔍 Which is the odd one out? (a) copper (b) cotton cloth (c) aluminium (d) steel
  38. 38.True or false: the core of a wire needs a waterproof material. (a) False (b) True
  39. 39.Which of these needs a flexible material? (a) a boat hull (b) the core of a wire (c) an umbrella cover (d) a skipping rope
  40. 40.True or false: a roof sheet needs a heat insulator. (a) True (b) False

Answer key

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

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