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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 561 · 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 property matters most for a roof sheet? (a) transparent (b) heat insulator (c) waterproof (d) electrical conductor
  2. 2.True or false: a spectacle lens needs a transparent material. (a) False (b) True
  3. 3.True or false: a switch contact needs an electrical conductor. (a) False (b) True
  4. 4.Which of these needs a heat insulator? (a) a magnifier lens (b) an oven glove (c) a window pane (d) a car windscreen
  5. 5.🧱 Which material is best for a raincoat? (a) cotton wool (b) cardboard (c) paper (d) plastic-coated cloth
  6. 6.True or false: a skipping rope needs a heat insulator. (a) True (b) False
  7. 7.🧱 Which property matters most for a skipping rope? (a) flexible (b) transparent (c) electrical conductor (d) waterproof
  8. 8.🔍 Which is the odd one out? (a) glass (b) steel (c) iron (d) aluminium
  9. 9.Which of these needs an electrical conductor? (a) a yoga mat (b) a cooking pot handle (c) a window pane (d) a plug pin
  10. 10.🧱 Which property matters most for a boat hull? (a) electrical conductor (b) waterproof (c) transparent (d) heat insulator
  11. 11.🧱 Which material is best for the bars inside concrete? (a) plastic (b) rubber (c) glass (d) steel
  12. 12.🧱 Is glass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  13. 13.🧱 Which material is best for a cooking pot handle? (a) wood or plastic (b) copper (c) aluminium (d) iron
  14. 14.Which of these needs a flexible material? (a) a water tank (b) a boat hull (c) a skipping rope (d) an umbrella cover
  15. 15.🧱 Is brass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  16. 16.🔍 Which is the odd one out? (a) glass (b) rubber (c) steel (d) dry wood
  17. 17.Which of these needs a waterproof material? (a) an oven glove (b) a roof sheet (c) a magnifier lens (d) a hair band
  18. 18.True or false: a raincoat needs a heat insulator. (a) True (b) False
  19. 19.🧱 Which property matters most for a yoga mat? (a) electrical conductor (b) heat insulator (c) flexible (d) transparent
  20. 20.🧱 Is plastic an electrical conductor or an insulator? (a) an insulator (b) a conductor
  21. 21.🧱 Which material is best for the core of an electric wire? (a) glass (b) rubber (c) copper (d) wood
  22. 22.True or false: an oven glove needs a waterproof material. (a) False (b) True
  23. 23.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
  24. 24.🧱 Which property matters most for a water tank? (a) transparent (b) electrical conductor (c) flexible (d) waterproof
  25. 25.Which of these needs a waterproof material? (a) a skipping rope (b) a water tank (c) a plug pin (d) a hair band
  26. 26.True or false: a water tank needs a transparent material. (a) True (b) False
  27. 27.True or false: a yoga mat needs a flexible material. (a) False (b) True
  28. 28.Which of these needs a transparent material? (a) a water tank (b) a skipping rope (c) a car windscreen (d) a plug pin
  29. 29.True or false: a switch contact needs a heat insulator. (a) True (b) False
  30. 30.True or false: a raincoat needs a flexible material. (a) True (b) False
  31. 31.🧱 Which property matters most for a raincoat? (a) transparent (b) heat insulator (c) waterproof (d) electrical conductor
  32. 32.Which of these needs a flexible material? (a) a window pane (b) a yoga mat (c) a car windscreen (d) a switch contact
  33. 33.🧱 Which material is best for a window pane? (a) brick (b) steel (c) wood (d) glass
  34. 34.Which of these needs a heat insulator? (a) a window pane (b) an umbrella cover (c) a magnifier lens (d) a tea flask lining
  35. 35.🧱 Is rubber an electrical conductor or an insulator? (a) a conductor (b) an insulator
  36. 36.🧱 Which property matters most for an oven glove? (a) flexible (b) transparent (c) heat insulator (d) electrical conductor
  37. 37.🧱 Is cotton cloth an electrical conductor or an insulator? (a) an insulator (b) a conductor
  38. 38.🧱 Which property matters most for the core of a wire? (a) electrical conductor (b) flexible (c) heat insulator (d) waterproof
  39. 39.🧱 Which property matters most for a plug pin? (a) electrical conductor (b) flexible (c) waterproof (d) transparent
  40. 40.🧱 Which property matters most for an umbrella cover? (a) transparent (b) electrical conductor (c) heat insulator (d) waterproof

Answer key

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

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