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Engineering Worksheet: Materials

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

Answer key

  1. graphite
  2. a magnifier lens
  3. plastic-coated cloth
  4. heat insulator
  5. False
  6. False
  7. False
  8. a car seat belt
  9. waterproof
  10. the core of a wire
  11. False
  12. glass
  13. electrical conductor
  14. flexible
  15. copper
  16. iron
  17. a conductor
  18. False
  19. a plug pin
  20. a water tank
  21. True
  22. False
  23. False
  24. a conductor
  25. an umbrella cover
  26. an insulator
  27. True
  28. an insulator
  29. heat insulator
  30. True
  31. True
  32. a window pane
  33. a cooking pot handle
  34. glass
  35. wood or plastic
  36. a roof sheet
  37. waterproof
  38. True
  39. transparent
  40. a car windscreen

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