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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 366 · 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 spectacle lens? (a) flexible (b) transparent (c) waterproof (d) heat insulator
  2. 2.Which of these needs a waterproof material? (a) a plug pin (b) a raincoat (c) a cooking pot handle (d) a yoga mat
  3. 3.True or false: an oven glove needs a heat insulator. (a) False (b) True
  4. 4.True or false: a roof sheet needs an electrical conductor. (a) True (b) False
  5. 5.🔍 Which is the odd one out? (a) brass (b) dry wood (c) plastic (d) rubber
  6. 6.🧱 Which material is best for a cooking pot handle? (a) iron (b) aluminium (c) copper (d) wood or plastic
  7. 7.True or false: a water tank needs a flexible material. (a) False (b) True
  8. 8.Which of these needs a flexible material? (a) a car windscreen (b) a roof sheet (c) an umbrella cover (d) a skipping rope
  9. 9.True or false: a raincoat needs a waterproof material. (a) True (b) False
  10. 10.🧱 Is graphite an electrical conductor or an insulator? (a) a conductor (b) an insulator
  11. 11.🔍 Which is the odd one out? (a) aluminium (b) clay pottery (c) rubber (d) plastic
  12. 12.🧱 Is plastic an electrical conductor or an insulator? (a) an insulator (b) a conductor
  13. 13.True or false: a skipping rope needs a transparent material. (a) True (b) False
  14. 14.🧱 Which property matters most for a car seat belt? (a) flexible (b) electrical conductor (c) waterproof (d) transparent
  15. 15.🧱 Which material is best for a window pane? (a) steel (b) brick (c) glass (d) wood
  16. 16.🧱 Which property matters most for a yoga mat? (a) transparent (b) flexible (c) waterproof (d) electrical conductor
  17. 17.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  18. 18.True or false: a tea flask lining needs a flexible material. (a) True (b) False
  19. 19.True or false: a water tank needs a waterproof material. (a) True (b) False
  20. 20.🧱 Is clay pottery an electrical conductor or an insulator? (a) a conductor (b) an insulator
  21. 21.🧱 Which material is best for a raincoat? (a) cotton wool (b) cardboard (c) plastic-coated cloth (d) paper
  22. 22.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  23. 23.True or false: a switch contact needs a heat insulator. (a) False (b) True
  24. 24.True or false: a roof sheet needs a waterproof material. (a) True (b) False
  25. 25.🧱 Which material is best for the core of an electric wire? (a) rubber (b) wood (c) copper (d) glass
  26. 26.Which of these needs a flexible material? (a) a spectacle lens (b) a window pane (c) a boat hull (d) a car seat belt
  27. 27.🧱 Which material is best for the bars inside concrete? (a) glass (b) plastic (c) rubber (d) steel
  28. 28.Which of these needs an electrical conductor? (a) a boat hull (b) the core of a wire (c) a car seat belt (d) a car windscreen
  29. 29.🔍 Which is the odd one out? (a) plastic (b) rubber (c) copper (d) dry wood
  30. 30.Which of these needs a heat insulator? (a) a plug pin (b) the core of a wire (c) a cooking pot handle (d) a yoga mat
  31. 31.Which of these needs a transparent material? (a) a switch contact (b) a roof sheet (c) a car windscreen (d) the core of a wire
  32. 32.🧱 Is dry wood an electrical conductor or an insulator? (a) a conductor (b) an insulator
  33. 33.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  34. 34.🧱 Which property matters most for a plug pin? (a) waterproof (b) electrical conductor (c) flexible (d) heat insulator
  35. 35.🔍 Which is the odd one out? (a) dry wood (b) steel (c) graphite (d) iron
  36. 36.🧱 Is rubber an electrical conductor or an insulator? (a) an insulator (b) a conductor
  37. 37.True or false: an umbrella cover needs a flexible material. (a) True (b) False
  38. 38.Which of these needs a heat insulator? (a) a window pane (b) a skipping rope (c) a tea flask lining (d) a car windscreen
  39. 39.🧱 Which property matters most for a car windscreen? (a) heat insulator (b) waterproof (c) transparent (d) electrical conductor
  40. 40.True or false: a car windscreen needs a heat insulator. (a) False (b) True

Answer key

  1. transparent
  2. a raincoat
  3. True
  4. False
  5. brass
  6. wood or plastic
  7. False
  8. a skipping rope
  9. True
  10. a conductor
  11. aluminium
  12. an insulator
  13. False
  14. flexible
  15. glass
  16. flexible
  17. a conductor
  18. False
  19. True
  20. an insulator
  21. plastic-coated cloth
  22. a conductor
  23. False
  24. True
  25. copper
  26. a car seat belt
  27. steel
  28. the core of a wire
  29. copper
  30. a cooking pot handle
  31. a car windscreen
  32. an insulator
  33. a conductor
  34. electrical conductor
  35. dry wood
  36. an insulator
  37. False
  38. a tea flask lining
  39. transparent
  40. False

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