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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 177 · 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 property matters most for a skipping rope? (a) waterproof (b) transparent (c) electrical conductor (d) flexible
  2. 2.🔍 Which is the odd one out? (a) iron (b) copper (c) graphite (d) dry wood
  3. 3.🧱 Which property matters most for the core of a wire? (a) heat insulator (b) waterproof (c) transparent (d) electrical conductor
  4. 4.🔍 Which is the odd one out? (a) iron (b) steel (c) copper (d) clay pottery
  5. 5.True or false: a window pane needs a heat insulator. (a) True (b) False
  6. 6.🧱 Is dry wood an electrical conductor or an insulator? (a) a conductor (b) an insulator
  7. 7.True or false: a car windscreen needs a transparent material. (a) False (b) True
  8. 8.🧱 Which material is best for a cooking pot handle? (a) wood or plastic (b) copper (c) iron (d) aluminium
  9. 9.Which of these needs a transparent material? (a) a yoga mat (b) a boat hull (c) a magnifier lens (d) a skipping rope
  10. 10.🧱 Which material is best for the bars inside concrete? (a) steel (b) rubber (c) glass (d) plastic
  11. 11.Which of these needs a flexible material? (a) a window pane (b) a plug pin (c) a boat hull (d) a car seat belt
  12. 12.True or false: a spectacle lens needs a transparent material. (a) False (b) True
  13. 13.True or false: an umbrella cover needs a waterproof material. (a) False (b) True
  14. 14.🧱 Which property matters most for a yoga mat? (a) heat insulator (b) flexible (c) transparent (d) electrical conductor
  15. 15.🧱 Which property matters most for a boat hull? (a) heat insulator (b) flexible (c) waterproof (d) transparent
  16. 16.Which of these needs a waterproof material? (a) a hair band (b) a spectacle lens (c) a tea flask lining (d) a water tank
  17. 17.🔍 Which is the odd one out? (a) clay pottery (b) brass (c) plastic (d) rubber
  18. 18.True or false: an oven glove needs a heat insulator. (a) False (b) True
  19. 19.Which of these needs a flexible material? (a) a magnifier lens (b) a skipping rope (c) an umbrella cover (d) a switch contact
  20. 20.🧱 Which material is best for the core of an electric wire? (a) glass (b) copper (c) wood (d) rubber
  21. 21.Which of these needs a waterproof material? (a) a raincoat (b) a cooking pot handle (c) a tea flask lining (d) the core of a wire
  22. 22.🧱 Which property matters most for a magnifier lens? (a) waterproof (b) transparent (c) heat insulator (d) electrical conductor
  23. 23.True or false: an umbrella cover needs an electrical conductor. (a) False (b) True
  24. 24.🧱 Which material is best for a raincoat? (a) paper (b) cotton wool (c) cardboard (d) plastic-coated cloth
  25. 25.True or false: a window pane needs a flexible material. (a) True (b) False
  26. 26.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
  27. 27.🔍 Which is the odd one out? (a) cotton cloth (b) rubber (c) graphite (d) glass
  28. 28.Which of these needs a heat insulator? (a) a window pane (b) an umbrella cover (c) a skipping rope (d) an oven glove
  29. 29.Which of these needs a waterproof material? (a) a boat hull (b) a skipping rope (c) a plug pin (d) a car seat belt
  30. 30.Which of these needs a heat insulator? (a) a water tank (b) a car windscreen (c) a cooking pot handle (d) a hair band
  31. 31.Which of these needs a transparent material? (a) a switch contact (b) a window pane (c) an umbrella cover (d) a car seat belt
  32. 32.True or false: a roof sheet needs a waterproof material. (a) True (b) False
  33. 33.True or false: a plug pin needs a flexible material. (a) False (b) True
  34. 34.True or false: a spectacle lens needs a flexible material. (a) True (b) False
  35. 35.🧱 Is rubber an electrical conductor or an insulator? (a) a conductor (b) an insulator
  36. 36.🧱 Which property matters most for a cooking pot handle? (a) transparent (b) waterproof (c) heat insulator (d) electrical conductor
  37. 37.True or false: a window pane needs a waterproof material. (a) False (b) True
  38. 38.True or false: a boat hull needs a transparent material. (a) False (b) True
  39. 39.🧱 Which property matters most for a car windscreen? (a) heat insulator (b) flexible (c) transparent (d) waterproof
  40. 40.True or false: a water tank needs a flexible material. (a) True (b) False

Answer key

  1. flexible
  2. dry wood
  3. electrical conductor
  4. clay pottery
  5. False
  6. an insulator
  7. True
  8. wood or plastic
  9. a magnifier lens
  10. steel
  11. a car seat belt
  12. True
  13. True
  14. flexible
  15. waterproof
  16. a water tank
  17. brass
  18. True
  19. a skipping rope
  20. copper
  21. a raincoat
  22. transparent
  23. False
  24. plastic-coated cloth
  25. False
  26. a conductor
  27. graphite
  28. an oven glove
  29. a boat hull
  30. a cooking pot handle
  31. a window pane
  32. True
  33. False
  34. False
  35. an insulator
  36. heat insulator
  37. False
  38. False
  39. transparent
  40. False

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