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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 399 · 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) dry wood (b) iron (c) cotton cloth (d) glass
  2. 2.True or false: a car windscreen needs an electrical conductor. (a) False (b) True
  3. 3.🧱 Which property matters most for a boat hull? (a) transparent (b) electrical conductor (c) heat insulator (d) waterproof
  4. 4.🧱 Which material is best for a cooking pot handle? (a) aluminium (b) wood or plastic (c) iron (d) copper
  5. 5.Which of these needs an electrical conductor? (a) a spectacle lens (b) a yoga mat (c) a switch contact (d) a skipping rope
  6. 6.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  7. 7.Which of these needs a heat insulator? (a) the core of a wire (b) a cooking pot handle (c) a switch contact (d) a skipping rope
  8. 8.True or false: a hair band needs a transparent material. (a) True (b) False
  9. 9.True or false: a window pane needs a transparent material. (a) True (b) False
  10. 10.🧱 Which material is best for the core of an electric wire? (a) wood (b) rubber (c) glass (d) copper
  11. 11.🧱 Which property matters most for an umbrella cover? (a) electrical conductor (b) heat insulator (c) waterproof (d) transparent
  12. 12.Which of these needs a waterproof material? (a) a skipping rope (b) a car seat belt (c) a cooking pot handle (d) a roof sheet
  13. 13.🔍 Which is the odd one out? (a) dry wood (b) steel (c) rubber (d) cotton cloth
  14. 14.True or false: a plug pin needs a heat insulator. (a) False (b) True
  15. 15.🧱 Is graphite an electrical conductor or an insulator? (a) an insulator (b) a conductor
  16. 16.🧱 Which property matters most for a roof sheet? (a) transparent (b) heat insulator (c) waterproof (d) flexible
  17. 17.🧱 Which property matters most for a hair band? (a) flexible (b) electrical conductor (c) heat insulator (d) waterproof
  18. 18.True or false: an umbrella cover needs a transparent material. (a) True (b) False
  19. 19.Which of these needs a transparent material? (a) a plug pin (b) a tea flask lining (c) a window pane (d) a hair band
  20. 20.🧱 Is dry wood an electrical conductor or an insulator? (a) a conductor (b) an insulator
  21. 21.Which of these needs a waterproof material? (a) an oven glove (b) an umbrella cover (c) a switch contact (d) a plug pin
  22. 22.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  23. 23.True or false: a car seat belt needs a waterproof material. (a) False (b) True
  24. 24.🧱 Is rubber an electrical conductor or an insulator? (a) an insulator (b) a conductor
  25. 25.🔍 Which is the odd one out? (a) graphite (b) iron (c) dry wood (d) copper
  26. 26.True or false: a car seat belt needs an electrical conductor. (a) True (b) False
  27. 27.🧱 Which property matters most for a car windscreen? (a) heat insulator (b) flexible (c) transparent (d) waterproof
  28. 28.Which of these needs a heat insulator? (a) a skipping rope (b) an umbrella cover (c) a magnifier lens (d) a tea flask lining
  29. 29.Which of these needs a flexible material? (a) a yoga mat (b) an oven glove (c) a water tank (d) an umbrella cover
  30. 30.🧱 Which property matters most for a yoga mat? (a) waterproof (b) electrical conductor (c) transparent (d) flexible
  31. 31.🔍 Which is the odd one out? (a) copper (b) aluminium (c) iron (d) rubber
  32. 32.Which of these needs an electrical conductor? (a) a hair band (b) a car seat belt (c) a car windscreen (d) a plug pin
  33. 33.True or false: an umbrella cover needs a heat insulator. (a) False (b) True
  34. 34.Which of these needs a flexible material? (a) a window pane (b) a spectacle lens (c) a water tank (d) a hair band
  35. 35.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  36. 36.🧱 Which property matters most for a skipping rope? (a) electrical conductor (b) waterproof (c) transparent (d) flexible
  37. 37.🧱 Which material is best for a raincoat? (a) cotton wool (b) paper (c) cardboard (d) plastic-coated cloth
  38. 38.🧱 Which property matters most for an oven glove? (a) waterproof (b) flexible (c) electrical conductor (d) heat insulator
  39. 39.🧱 Which property matters most for a switch contact? (a) transparent (b) electrical conductor (c) waterproof (d) heat insulator
  40. 40.🔍 Which is the odd one out? (a) cotton cloth (b) clay pottery (c) graphite (d) rubber

Answer key

  1. iron
  2. False
  3. waterproof
  4. wood or plastic
  5. a switch contact
  6. a conductor
  7. a cooking pot handle
  8. False
  9. True
  10. copper
  11. waterproof
  12. a roof sheet
  13. steel
  14. False
  15. a conductor
  16. waterproof
  17. flexible
  18. False
  19. a window pane
  20. an insulator
  21. an umbrella cover
  22. a conductor
  23. False
  24. an insulator
  25. dry wood
  26. False
  27. transparent
  28. a tea flask lining
  29. a yoga mat
  30. flexible
  31. rubber
  32. a plug pin
  33. False
  34. a hair band
  35. a conductor
  36. flexible
  37. plastic-coated cloth
  38. heat insulator
  39. electrical conductor
  40. graphite

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