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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 76 · 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 clay pottery an electrical conductor or an insulator? (a) a conductor (b) an insulator
  2. 2.🧱 Which property matters most for an umbrella cover? (a) waterproof (b) heat insulator (c) transparent (d) electrical conductor
  3. 3.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  4. 4.🧱 Which material is best for a window pane? (a) brick (b) steel (c) wood (d) glass
  5. 5.🧱 Which property matters most for a raincoat? (a) transparent (b) heat insulator (c) flexible (d) waterproof
  6. 6.🧱 Which property matters most for a yoga mat? (a) flexible (b) waterproof (c) electrical conductor (d) transparent
  7. 7.🧱 Which property matters most for a car windscreen? (a) flexible (b) waterproof (c) transparent (d) electrical conductor
  8. 8.🔍 Which is the odd one out? (a) aluminium (b) glass (c) iron (d) copper
  9. 9.🔍 Which is the odd one out? (a) iron (b) dry wood (c) clay pottery (d) plastic
  10. 10.Which of these needs a flexible material? (a) a skipping rope (b) a cooking pot handle (c) a spectacle lens (d) the core of a wire
  11. 11.🧱 Which property matters most for a tea flask lining? (a) flexible (b) heat insulator (c) transparent (d) waterproof
  12. 12.Which of these needs a transparent material? (a) a water tank (b) a car windscreen (c) a car seat belt (d) a switch contact
  13. 13.🧱 Is rubber an electrical conductor or an insulator? (a) an insulator (b) a conductor
  14. 14.True or false: a roof sheet needs a heat insulator. (a) True (b) False
  15. 15.Which of these needs a waterproof material? (a) a raincoat (b) a switch contact (c) an oven glove (d) a skipping rope
  16. 16.🧱 Is graphite an electrical conductor or an insulator? (a) an insulator (b) a conductor
  17. 17.Which of these needs a flexible material? (a) a tea flask lining (b) a roof sheet (c) a hair band (d) a plug pin
  18. 18.True or false: a water tank needs a waterproof material. (a) True (b) False
  19. 19.🧱 Is cotton cloth an electrical conductor or an insulator? (a) a conductor (b) an insulator
  20. 20.True or false: a yoga mat needs a flexible material. (a) True (b) False
  21. 21.True or false: a car windscreen needs a transparent material. (a) False (b) True
  22. 22.🔍 Which is the odd one out? (a) dry wood (b) cotton cloth (c) steel (d) rubber
  23. 23.🔍 Which is the odd one out? (a) glass (b) copper (c) clay pottery (d) rubber
  24. 24.Which of these needs a heat insulator? (a) a hair band (b) a tea flask lining (c) a car windscreen (d) a yoga mat
  25. 25.True or false: a magnifier lens needs a heat insulator. (a) True (b) False
  26. 26.Which of these needs a waterproof material? (a) a window pane (b) a roof sheet (c) a hair band (d) a yoga mat
  27. 27.Which of these needs a transparent material? (a) a car seat belt (b) a window pane (c) a hair band (d) a switch contact
  28. 28.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  29. 29.🧱 Which property matters most for a window pane? (a) flexible (b) transparent (c) waterproof (d) electrical conductor
  30. 30.True or false: a skipping rope needs a waterproof material. (a) True (b) False
  31. 31.🧱 Is glass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  32. 32.True or false: a window pane needs a flexible material. (a) True (b) False
  33. 33.True or false: an umbrella cover needs a flexible material. (a) False (b) True
  34. 34.🧱 Which property matters most for a water tank? (a) transparent (b) heat insulator (c) electrical conductor (d) waterproof
  35. 35.Which of these needs a heat insulator? (a) a yoga mat (b) a spectacle lens (c) a cooking pot handle (d) a water tank
  36. 36.True or false: a magnifier lens needs an electrical conductor. (a) True (b) False
  37. 37.🧱 Which material is best for a raincoat? (a) cotton wool (b) cardboard (c) plastic-coated cloth (d) paper
  38. 38.🧱 Is dry wood an electrical conductor or an insulator? (a) a conductor (b) an insulator
  39. 39.Which of these needs an electrical conductor? (a) a switch contact (b) a raincoat (c) a boat hull (d) an umbrella cover
  40. 40.🧱 Which property matters most for a spectacle lens? (a) heat insulator (b) transparent (c) waterproof (d) flexible

Answer key

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

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