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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 732 · 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 flexible material? (a) a yoga mat (b) a window pane (c) a raincoat (d) a spectacle lens
  2. 2.🔍 Which is the odd one out? (a) plastic (b) graphite (c) steel (d) aluminium
  3. 3.Which of these needs an electrical conductor? (a) a cooking pot handle (b) a skipping rope (c) a plug pin (d) a roof sheet
  4. 4.🔍 Which is the odd one out? (a) plastic (b) clay pottery (c) graphite (d) rubber
  5. 5.🧱 Which material is best for the bars inside concrete? (a) steel (b) glass (c) rubber (d) plastic
  6. 6.🧱 Which material is best for a cooking pot handle? (a) aluminium (b) wood or plastic (c) iron (d) copper
  7. 7.🧱 Which property matters most for an umbrella cover? (a) electrical conductor (b) waterproof (c) transparent (d) flexible
  8. 8.Which of these needs a transparent material? (a) a tea flask lining (b) a cooking pot handle (c) a magnifier lens (d) the core of a wire
  9. 9.🧱 Which material is best for a raincoat? (a) plastic-coated cloth (b) cardboard (c) paper (d) cotton wool
  10. 10.True or false: a switch contact needs a waterproof material. (a) True (b) False
  11. 11.🔍 Which is the odd one out? (a) rubber (b) aluminium (c) copper (d) graphite
  12. 12.True or false: a spectacle lens needs a waterproof material. (a) True (b) False
  13. 13.Which of these needs a flexible material? (a) an oven glove (b) a raincoat (c) a skipping rope (d) a roof sheet
  14. 14.True or false: an umbrella cover needs a waterproof material. (a) False (b) True
  15. 15.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  16. 16.Which of these needs a waterproof material? (a) a spectacle lens (b) a car seat belt (c) a plug pin (d) a raincoat
  17. 17.True or false: a raincoat needs a waterproof material. (a) False (b) True
  18. 18.🧱 Is iron an electrical conductor or an insulator? (a) a conductor (b) an insulator
  19. 19.🧱 Is glass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  20. 20.Which of these needs a waterproof material? (a) a tea flask lining (b) an umbrella cover (c) a cooking pot handle (d) a spectacle lens
  21. 21.🧱 Which property matters most for a cooking pot handle? (a) waterproof (b) transparent (c) electrical conductor (d) heat insulator
  22. 22.🧱 Which property matters most for a yoga mat? (a) heat insulator (b) waterproof (c) transparent (d) flexible
  23. 23.Which of these needs a transparent material? (a) a skipping rope (b) a spectacle lens (c) a roof sheet (d) a plug pin
  24. 24.🔍 Which is the odd one out? (a) glass (b) cotton cloth (c) rubber (d) steel
  25. 25.🧱 Which material is best for a window pane? (a) steel (b) wood (c) brick (d) glass
  26. 26.Which of these needs an electrical conductor? (a) a raincoat (b) a water tank (c) the core of a wire (d) a cooking pot handle
  27. 27.Which of these needs a heat insulator? (a) a cooking pot handle (b) a roof sheet (c) a window pane (d) a water tank
  28. 28.🧱 Which property matters most for the core of a wire? (a) transparent (b) heat insulator (c) electrical conductor (d) flexible
  29. 29.True or false: a plug pin needs an electrical conductor. (a) True (b) False
  30. 30.🧱 Which property matters most for a boat hull? (a) flexible (b) heat insulator (c) waterproof (d) transparent
  31. 31.🧱 Which material is best for the core of an electric wire? (a) glass (b) rubber (c) wood (d) copper
  32. 32.🧱 Is steel an electrical conductor or an insulator? (a) a conductor (b) an insulator
  33. 33.True or false: a window pane needs a transparent material. (a) True (b) False
  34. 34.True or false: an umbrella cover needs an electrical conductor. (a) True (b) False
  35. 35.Which of these needs a heat insulator? (a) an oven glove (b) a raincoat (c) a boat hull (d) an umbrella cover
  36. 36.🧱 Which property matters most for a magnifier lens? (a) flexible (b) waterproof (c) electrical conductor (d) transparent
  37. 37.🔍 Which is the odd one out? (a) rubber (b) cotton cloth (c) aluminium (d) plastic
  38. 38.🧱 Is clay pottery an electrical conductor or an insulator? (a) a conductor (b) an insulator
  39. 39.🔍 Which is the odd one out? (a) aluminium (b) iron (c) dry wood (d) graphite
  40. 40.True or false: a cooking pot handle needs a flexible material. (a) False (b) True

Answer key

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

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