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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 436 · 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 of these needs a waterproof material? (a) a spectacle lens (b) a skipping rope (c) a raincoat (d) a plug pin
  3. 3.🧱 Is graphite an electrical conductor or an insulator? (a) a conductor (b) an insulator
  4. 4.True or false: a hair band needs a waterproof material. (a) False (b) True
  5. 5.🧱 Is brass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  6. 6.Which of these needs a heat insulator? (a) a hair band (b) a car seat belt (c) a yoga mat (d) an oven glove
  7. 7.🧱 Which property matters most for a plug pin? (a) waterproof (b) heat insulator (c) electrical conductor (d) flexible
  8. 8.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
  9. 9.🧱 Which material is best for a raincoat? (a) plastic-coated cloth (b) cotton wool (c) cardboard (d) paper
  10. 10.Which of these needs an electrical conductor? (a) a plug pin (b) a cooking pot handle (c) a yoga mat (d) a roof sheet
  11. 11.Which of these needs a transparent material? (a) a skipping rope (b) a tea flask lining (c) a magnifier lens (d) an umbrella cover
  12. 12.🧱 Is copper an electrical conductor or an insulator? (a) a conductor (b) an insulator
  13. 13.Which of these needs a waterproof material? (a) an umbrella cover (b) a car windscreen (c) a magnifier lens (d) a tea flask lining
  14. 14.Which of these needs a waterproof material? (a) a yoga mat (b) a hair band (c) an oven glove (d) a water tank
  15. 15.🧱 Which property matters most for a switch contact? (a) transparent (b) flexible (c) waterproof (d) electrical conductor
  16. 16.🔍 Which is the odd one out? (a) rubber (b) cotton cloth (c) glass (d) brass
  17. 17.True or false: a magnifier lens needs a transparent material. (a) True (b) False
  18. 18.🧱 Which material is best for the core of an electric wire? (a) rubber (b) wood (c) glass (d) copper
  19. 19.🧱 Which material is best for a cooking pot handle? (a) aluminium (b) iron (c) copper (d) wood or plastic
  20. 20.🧱 Which property matters most for a car seat belt? (a) waterproof (b) flexible (c) transparent (d) heat insulator
  21. 21.Which of these needs a heat insulator? (a) a yoga mat (b) a tea flask lining (c) a car seat belt (d) an umbrella cover
  22. 22.True or false: a spectacle lens needs a waterproof material. (a) False (b) True
  23. 23.Which of these needs a heat insulator? (a) a cooking pot handle (b) a magnifier lens (c) a roof sheet (d) a boat hull
  24. 24.True or false: a window pane needs a heat insulator. (a) True (b) False
  25. 25.🧱 Is rubber an electrical conductor or an insulator? (a) a conductor (b) an insulator
  26. 26.🧱 Which material is best for the bars inside concrete? (a) rubber (b) steel (c) plastic (d) glass
  27. 27.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  28. 28.True or false: a yoga mat needs a flexible material. (a) True (b) False
  29. 29.🧱 Is glass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  30. 30.🧱 Which property matters most for the core of a wire? (a) flexible (b) transparent (c) electrical conductor (d) heat insulator
  31. 31.🔍 Which is the odd one out? (a) brass (b) aluminium (c) glass (d) iron
  32. 32.🧱 Which property matters most for an oven glove? (a) electrical conductor (b) waterproof (c) heat insulator (d) transparent
  33. 33.Which of these needs a transparent material? (a) a switch contact (b) an oven glove (c) a plug pin (d) a car windscreen
  34. 34.🧱 Which property matters most for a skipping rope? (a) flexible (b) electrical conductor (c) waterproof (d) transparent
  35. 35.True or false: an umbrella cover needs a heat insulator. (a) True (b) False
  36. 36.Which of these needs a waterproof material? (a) a yoga mat (b) a hair band (c) a car windscreen (d) a roof sheet
  37. 37.🧱 Which property matters most for a roof sheet? (a) heat insulator (b) electrical conductor (c) waterproof (d) flexible
  38. 38.Which of these needs an electrical conductor? (a) a car seat belt (b) a switch contact (c) a spectacle lens (d) a raincoat
  39. 39.True or false: a water tank needs a waterproof material. (a) True (b) False
  40. 40.🔍 Which is the odd one out? (a) rubber (b) dry wood (c) clay pottery (d) copper

Answer key

  1. an insulator
  2. a raincoat
  3. a conductor
  4. False
  5. a conductor
  6. an oven glove
  7. electrical conductor
  8. a conductor
  9. plastic-coated cloth
  10. a plug pin
  11. a magnifier lens
  12. a conductor
  13. an umbrella cover
  14. a water tank
  15. electrical conductor
  16. brass
  17. True
  18. copper
  19. wood or plastic
  20. flexible
  21. a tea flask lining
  22. False
  23. a cooking pot handle
  24. False
  25. an insulator
  26. steel
  27. a conductor
  28. True
  29. an insulator
  30. electrical conductor
  31. glass
  32. heat insulator
  33. a car windscreen
  34. flexible
  35. False
  36. a roof sheet
  37. waterproof
  38. a switch contact
  39. True
  40. copper

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