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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 131 · 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.🧱 Is plastic an electrical conductor or an insulator? (a) an insulator (b) a conductor
  2. 2.Which of these needs an electrical conductor? (a) a skipping rope (b) a window pane (c) a yoga mat (d) a plug pin
  3. 3.True or false: a car seat belt needs a flexible material. (a) False (b) True
  4. 4.Which of these needs a transparent material? (a) the core of a wire (b) a plug pin (c) a spectacle lens (d) a cooking pot handle
  5. 5.Which of these needs a flexible material? (a) a boat hull (b) a water tank (c) a yoga mat (d) an umbrella cover
  6. 6.🧱 Which material is best for a raincoat? (a) cardboard (b) paper (c) cotton wool (d) plastic-coated cloth
  7. 7.True or false: a skipping rope needs an electrical conductor. (a) True (b) False
  8. 8.Which of these needs a waterproof material? (a) a window pane (b) a hair band (c) a raincoat (d) a plug pin
  9. 9.True or false: a raincoat needs a transparent material. (a) False (b) True
  10. 10.Which of these needs a waterproof material? (a) a boat hull (b) a car seat belt (c) a magnifier lens (d) a hair band
  11. 11.🧱 Which property matters most for a tea flask lining? (a) electrical conductor (b) waterproof (c) flexible (d) heat insulator
  12. 12.🧱 Which material is best for the bars inside concrete? (a) plastic (b) steel (c) glass (d) rubber
  13. 13.🔍 Which is the odd one out? (a) cotton cloth (b) steel (c) graphite (d) brass
  14. 14.🧱 Is dry wood an electrical conductor or an insulator? (a) a conductor (b) an insulator
  15. 15.True or false: a raincoat needs a waterproof material. (a) False (b) True
  16. 16.Which of these needs an electrical conductor? (a) a hair band (b) a skipping rope (c) a tea flask lining (d) the core of a wire
  17. 17.🧱 Which property matters most for a car seat belt? (a) transparent (b) waterproof (c) flexible (d) heat insulator
  18. 18.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  19. 19.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  20. 20.True or false: a spectacle lens needs a waterproof material. (a) True (b) False
  21. 21.🧱 Which material is best for the core of an electric wire? (a) rubber (b) wood (c) glass (d) copper
  22. 22.🧱 Which property matters most for a window pane? (a) transparent (b) flexible (c) waterproof (d) heat insulator
  23. 23.🔍 Which is the odd one out? (a) cotton cloth (b) clay pottery (c) glass (d) graphite
  24. 24.True or false: an oven glove needs a heat insulator. (a) True (b) False
  25. 25.🔍 Which is the odd one out? (a) aluminium (b) clay pottery (c) glass (d) rubber
  26. 26.🧱 Which material is best for a window pane? (a) brick (b) steel (c) wood (d) glass
  27. 27.Which of these needs a heat insulator? (a) a tea flask lining (b) a skipping rope (c) a plug pin (d) a car windscreen
  28. 28.Which of these needs a heat insulator? (a) a cooking pot handle (b) a hair band (c) an umbrella cover (d) a magnifier lens
  29. 29.🧱 Which property matters most for a magnifier lens? (a) waterproof (b) transparent (c) heat insulator (d) electrical conductor
  30. 30.True or false: a spectacle lens needs a transparent material. (a) True (b) False
  31. 31.🧱 Is brass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  32. 32.True or false: a window pane needs a transparent material. (a) True (b) False
  33. 33.🔍 Which is the odd one out? (a) clay pottery (b) steel (c) graphite (d) aluminium
  34. 34.🧱 Which property matters most for an oven glove? (a) heat insulator (b) transparent (c) flexible (d) waterproof
  35. 35.Which of these needs a flexible material? (a) a skipping rope (b) a magnifier lens (c) a spectacle lens (d) a boat hull
  36. 36.True or false: a boat hull needs a waterproof material. (a) False (b) True
  37. 37.Which of these needs a waterproof material? (a) a car seat belt (b) a cooking pot handle (c) the core of a wire (d) an umbrella cover
  38. 38.True or false: a hair band needs a waterproof material. (a) False (b) True
  39. 39.True or false: a water tank needs a flexible material. (a) True (b) False
  40. 40.🧱 Is clay pottery an electrical conductor or an insulator? (a) an insulator (b) a conductor

Answer key

  1. an insulator
  2. a plug pin
  3. True
  4. a spectacle lens
  5. a yoga mat
  6. plastic-coated cloth
  7. False
  8. a raincoat
  9. False
  10. a boat hull
  11. heat insulator
  12. steel
  13. cotton cloth
  14. an insulator
  15. True
  16. the core of a wire
  17. flexible
  18. a conductor
  19. a conductor
  20. False
  21. copper
  22. transparent
  23. graphite
  24. True
  25. aluminium
  26. glass
  27. a tea flask lining
  28. a cooking pot handle
  29. transparent
  30. True
  31. a conductor
  32. True
  33. clay pottery
  34. heat insulator
  35. a skipping rope
  36. True
  37. an umbrella cover
  38. False
  39. False
  40. an insulator

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