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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 223 · 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 of these needs a heat insulator? (a) a magnifier lens (b) a car windscreen (c) an umbrella cover (d) an oven glove
  2. 2.🔍 Which is the odd one out? (a) graphite (b) brass (c) rubber (d) copper
  3. 3.Which of these needs a transparent material? (a) a water tank (b) a skipping rope (c) a magnifier lens (d) the core of a wire
  4. 4.True or false: a spectacle lens needs a transparent material. (a) False (b) True
  5. 5.🧱 Which property matters most for a boat hull? (a) heat insulator (b) flexible (c) electrical conductor (d) waterproof
  6. 6.🧱 Which material is best for a cooking pot handle? (a) iron (b) aluminium (c) copper (d) wood or plastic
  7. 7.🧱 Which property matters most for a skipping rope? (a) transparent (b) waterproof (c) electrical conductor (d) flexible
  8. 8.🧱 Which material is best for a window pane? (a) wood (b) steel (c) brick (d) glass
  9. 9.🧱 Which property matters most for a water tank? (a) flexible (b) electrical conductor (c) waterproof (d) heat insulator
  10. 10.🧱 Is glass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  11. 11.🧱 Which material is best for the core of an electric wire? (a) wood (b) glass (c) copper (d) rubber
  12. 12.Which of these needs a flexible material? (a) a switch contact (b) a roof sheet (c) a yoga mat (d) the core of a wire
  13. 13.🧱 Which property matters most for an oven glove? (a) electrical conductor (b) flexible (c) transparent (d) heat insulator
  14. 14.True or false: a boat hull needs a waterproof material. (a) False (b) True
  15. 15.Which of these needs a waterproof material? (a) a raincoat (b) a car seat belt (c) a hair band (d) a yoga mat
  16. 16.True or false: a car seat belt needs a transparent material. (a) False (b) True
  17. 17.Which of these needs a waterproof material? (a) a car seat belt (b) a spectacle lens (c) a roof sheet (d) a cooking pot handle
  18. 18.🧱 Which property matters most for a car seat belt? (a) heat insulator (b) flexible (c) transparent (d) waterproof
  19. 19.🔍 Which is the odd one out? (a) graphite (b) cotton cloth (c) brass (d) copper
  20. 20.🔍 Which is the odd one out? (a) cotton cloth (b) dry wood (c) steel (d) clay pottery
  21. 21.🧱 Is copper an electrical conductor or an insulator? (a) a conductor (b) an insulator
  22. 22.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  23. 23.🧱 Is rubber an electrical conductor or an insulator? (a) a conductor (b) an insulator
  24. 24.🔍 Which is the odd one out? (a) dry wood (b) graphite (c) steel (d) brass
  25. 25.🧱 Which material is best for the bars inside concrete? (a) steel (b) glass (c) plastic (d) rubber
  26. 26.🧱 Which property matters most for an umbrella cover? (a) heat insulator (b) flexible (c) transparent (d) waterproof
  27. 27.True or false: an oven glove needs an electrical conductor. (a) False (b) True
  28. 28.Which of these needs a waterproof material? (a) a plug pin (b) a magnifier lens (c) an umbrella cover (d) a switch contact
  29. 29.Which of these needs a flexible material? (a) a cooking pot handle (b) a water tank (c) a raincoat (d) a hair band
  30. 30.🧱 Which property matters most for the core of a wire? (a) heat insulator (b) electrical conductor (c) transparent (d) waterproof
  31. 31.Which of these needs a waterproof material? (a) a car windscreen (b) a boat hull (c) the core of a wire (d) a yoga mat
  32. 32.🧱 Which property matters most for a magnifier lens? (a) transparent (b) flexible (c) waterproof (d) heat insulator
  33. 33.🔍 Which is the odd one out? (a) dry wood (b) cotton cloth (c) plastic (d) aluminium
  34. 34.True or false: a magnifier lens needs a transparent material. (a) True (b) False
  35. 35.🧱 Which property matters most for a cooking pot handle? (a) heat insulator (b) electrical conductor (c) waterproof (d) transparent
  36. 36.True or false: a yoga mat needs a flexible material. (a) False (b) True
  37. 37.🧱 Is dry wood an electrical conductor or an insulator? (a) a conductor (b) an insulator
  38. 38.Which of these needs a transparent material? (a) a roof sheet (b) a car seat belt (c) the core of a wire (d) a spectacle lens
  39. 39.Which of these needs an electrical conductor? (a) a water tank (b) a roof sheet (c) a plug pin (d) a boat hull
  40. 40.🔍 Which is the odd one out? (a) copper (b) glass (c) rubber (d) clay pottery

Answer key

  1. an oven glove
  2. rubber
  3. a magnifier lens
  4. True
  5. waterproof
  6. wood or plastic
  7. flexible
  8. glass
  9. waterproof
  10. an insulator
  11. copper
  12. a yoga mat
  13. heat insulator
  14. True
  15. a raincoat
  16. False
  17. a roof sheet
  18. flexible
  19. cotton cloth
  20. steel
  21. a conductor
  22. a conductor
  23. an insulator
  24. dry wood
  25. steel
  26. waterproof
  27. False
  28. an umbrella cover
  29. a hair band
  30. electrical conductor
  31. a boat hull
  32. transparent
  33. aluminium
  34. True
  35. heat insulator
  36. True
  37. an insulator
  38. a spectacle lens
  39. a plug pin
  40. copper

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