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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 161 · 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.True or false: a raincoat needs a waterproof material. (a) False (b) True
  2. 2.🔍 Which is the odd one out? (a) clay pottery (b) glass (c) steel (d) rubber
  3. 3.Which of these needs a flexible material? (a) a magnifier lens (b) a car windscreen (c) a skipping rope (d) a switch contact
  4. 4.🧱 Which property matters most for a spectacle lens? (a) electrical conductor (b) transparent (c) waterproof (d) flexible
  5. 5.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  6. 6.True or false: a spectacle lens needs a transparent material. (a) False (b) True
  7. 7.🧱 Which property matters most for a window pane? (a) transparent (b) waterproof (c) electrical conductor (d) flexible
  8. 8.True or false: a plug pin needs an electrical conductor. (a) False (b) True
  9. 9.🔍 Which is the odd one out? (a) plastic (b) glass (c) clay pottery (d) copper
  10. 10.True or false: a roof sheet needs a heat insulator. (a) True (b) False
  11. 11.🧱 Which material is best for a cooking pot handle? (a) iron (b) aluminium (c) wood or plastic (d) copper
  12. 12.🔍 Which is the odd one out? (a) clay pottery (b) iron (c) cotton cloth (d) plastic
  13. 13.🧱 Is copper an electrical conductor or an insulator? (a) a conductor (b) an insulator
  14. 14.True or false: a plug pin needs a flexible material. (a) False (b) True
  15. 15.🧱 Which property matters most for a tea flask lining? (a) electrical conductor (b) heat insulator (c) flexible (d) waterproof
  16. 16.Which of these needs a heat insulator? (a) a hair band (b) a tea flask lining (c) an umbrella cover (d) the core of a wire
  17. 17.🧱 Which material is best for the bars inside concrete? (a) plastic (b) rubber (c) steel (d) glass
  18. 18.True or false: a car seat belt needs an electrical conductor. (a) False (b) True
  19. 19.🧱 Which property matters most for a plug pin? (a) waterproof (b) flexible (c) transparent (d) electrical conductor
  20. 20.🧱 Which property matters most for a cooking pot handle? (a) transparent (b) flexible (c) waterproof (d) heat insulator
  21. 21.🧱 Is clay pottery an electrical conductor or an insulator? (a) an insulator (b) a conductor
  22. 22.🔍 Which is the odd one out? (a) copper (b) graphite (c) brass (d) clay pottery
  23. 23.🧱 Which property matters most for a skipping rope? (a) electrical conductor (b) transparent (c) flexible (d) waterproof
  24. 24.🧱 Which property matters most for a switch contact? (a) waterproof (b) flexible (c) electrical conductor (d) transparent
  25. 25.🧱 Is glass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  26. 26.Which of these needs a waterproof material? (a) a switch contact (b) a water tank (c) a skipping rope (d) an oven glove
  27. 27.🧱 Is brass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  28. 28.True or false: the core of a wire needs an electrical conductor. (a) True (b) False
  29. 29.🧱 Which property matters most for the core of a wire? (a) transparent (b) flexible (c) electrical conductor (d) waterproof
  30. 30.True or false: a plug pin needs a transparent material. (a) False (b) True
  31. 31.🧱 Is dry wood an electrical conductor or an insulator? (a) an insulator (b) a conductor
  32. 32.True or false: a roof sheet needs a waterproof material. (a) True (b) False
  33. 33.Which of these needs an electrical conductor? (a) an umbrella cover (b) a switch contact (c) a hair band (d) a window pane
  34. 34.🧱 Which property matters most for a roof sheet? (a) waterproof (b) heat insulator (c) transparent (d) flexible
  35. 35.🔍 Which is the odd one out? (a) steel (b) aluminium (c) copper (d) dry wood
  36. 36.Which of these needs a flexible material? (a) a boat hull (b) a car seat belt (c) a tea flask lining (d) a window pane
  37. 37.True or false: a window pane needs a heat insulator. (a) False (b) True
  38. 38.Which of these needs an electrical conductor? (a) a car windscreen (b) a plug pin (c) a raincoat (d) a car seat belt
  39. 39.Which of these needs an electrical conductor? (a) an umbrella cover (b) a window pane (c) the core of a wire (d) a yoga mat
  40. 40.🧱 Which property matters most for a yoga mat? (a) electrical conductor (b) heat insulator (c) flexible (d) waterproof

Answer key

  1. True
  2. steel
  3. a skipping rope
  4. transparent
  5. a conductor
  6. True
  7. transparent
  8. True
  9. copper
  10. False
  11. wood or plastic
  12. iron
  13. a conductor
  14. False
  15. heat insulator
  16. a tea flask lining
  17. steel
  18. False
  19. electrical conductor
  20. heat insulator
  21. an insulator
  22. clay pottery
  23. flexible
  24. electrical conductor
  25. an insulator
  26. a water tank
  27. a conductor
  28. True
  29. electrical conductor
  30. False
  31. an insulator
  32. True
  33. a switch contact
  34. waterproof
  35. dry wood
  36. a car seat belt
  37. False
  38. a plug pin
  39. the core of a wire
  40. flexible

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