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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 465 · 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.🧱 Is dry wood an electrical conductor or an insulator? (a) an insulator (b) a conductor
  2. 2.🧱 Which material is best for a raincoat? (a) cardboard (b) cotton wool (c) plastic-coated cloth (d) paper
  3. 3.True or false: a skipping rope needs a flexible material. (a) False (b) True
  4. 4.Which of these needs a heat insulator? (a) a car seat belt (b) a water tank (c) a switch contact (d) a tea flask lining
  5. 5.True or false: a water tank needs a transparent material. (a) False (b) True
  6. 6.🧱 Which material is best for a window pane? (a) brick (b) wood (c) glass (d) steel
  7. 7.True or false: a boat hull needs a heat insulator. (a) False (b) True
  8. 8.True or false: a window pane needs a heat insulator. (a) True (b) False
  9. 9.🧱 Is steel an electrical conductor or an insulator? (a) a conductor (b) an insulator
  10. 10.Which of these needs a heat insulator? (a) a cooking pot handle (b) a car windscreen (c) a roof sheet (d) a skipping rope
  11. 11.🧱 Which property matters most for a magnifier lens? (a) electrical conductor (b) waterproof (c) heat insulator (d) transparent
  12. 12.True or false: a switch contact needs a heat insulator. (a) True (b) False
  13. 13.🧱 Which property matters most for a plug pin? (a) electrical conductor (b) transparent (c) waterproof (d) flexible
  14. 14.🧱 Which material is best for a cooking pot handle? (a) iron (b) copper (c) aluminium (d) wood or plastic
  15. 15.True or false: a skipping rope needs a transparent material. (a) False (b) True
  16. 16.🧱 Which property matters most for an oven glove? (a) heat insulator (b) transparent (c) electrical conductor (d) flexible
  17. 17.🧱 Which property matters most for a roof sheet? (a) waterproof (b) electrical conductor (c) heat insulator (d) flexible
  18. 18.🔍 Which is the odd one out? (a) plastic (b) graphite (c) cotton cloth (d) clay pottery
  19. 19.🔍 Which is the odd one out? (a) aluminium (b) brass (c) cotton cloth (d) copper
  20. 20.True or false: the core of a wire needs a heat insulator. (a) True (b) False
  21. 21.🧱 Is clay pottery an electrical conductor or an insulator? (a) an insulator (b) a conductor
  22. 22.True or false: the core of a wire needs an electrical conductor. (a) True (b) False
  23. 23.🧱 Which property matters most for a skipping rope? (a) flexible (b) electrical conductor (c) waterproof (d) transparent
  24. 24.🧱 Is copper an electrical conductor or an insulator? (a) a conductor (b) an insulator
  25. 25.🧱 Is aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
  26. 26.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
  27. 27.🔍 Which is the odd one out? (a) rubber (b) brass (c) steel (d) aluminium
  28. 28.🧱 Is brass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  29. 29.Which of these needs a flexible material? (a) the core of a wire (b) a magnifier lens (c) a raincoat (d) a hair band
  30. 30.True or false: a magnifier lens needs a transparent material. (a) False (b) True
  31. 31.🧱 Which property matters most for a car windscreen? (a) heat insulator (b) waterproof (c) flexible (d) transparent
  32. 32.True or false: a car seat belt needs an electrical conductor. (a) True (b) False
  33. 33.🧱 Which material is best for the core of an electric wire? (a) glass (b) copper (c) wood (d) rubber
  34. 34.Which of these needs an electrical conductor? (a) a car seat belt (b) a switch contact (c) a spectacle lens (d) a car windscreen
  35. 35.Which of these needs an electrical conductor? (a) a hair band (b) an umbrella cover (c) a boat hull (d) the core of a wire
  36. 36.True or false: an umbrella cover needs a waterproof material. (a) False (b) True
  37. 37.🧱 Is glass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  38. 38.True or false: an umbrella cover needs a flexible material. (a) True (b) False
  39. 39.🧱 Which property matters most for a water tank? (a) flexible (b) heat insulator (c) waterproof (d) electrical conductor
  40. 40.Which of these needs a waterproof material? (a) a car seat belt (b) a raincoat (c) a skipping rope (d) a spectacle lens

Answer key

  1. an insulator
  2. plastic-coated cloth
  3. True
  4. a tea flask lining
  5. False
  6. glass
  7. False
  8. False
  9. a conductor
  10. a cooking pot handle
  11. transparent
  12. False
  13. electrical conductor
  14. wood or plastic
  15. False
  16. heat insulator
  17. waterproof
  18. graphite
  19. cotton cloth
  20. False
  21. an insulator
  22. True
  23. flexible
  24. a conductor
  25. a conductor
  26. an insulator
  27. rubber
  28. a conductor
  29. a hair band
  30. True
  31. transparent
  32. False
  33. copper
  34. a switch contact
  35. the core of a wire
  36. True
  37. an insulator
  38. False
  39. waterproof
  40. a raincoat

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