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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 991 · 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 flexible material? (a) a raincoat (b) a hair band (c) a cooking pot handle (d) a boat hull
  2. 2.🧱 Which material is best for a cooking pot handle? (a) iron (b) wood or plastic (c) copper (d) aluminium
  3. 3.True or false: a car seat belt needs a waterproof material. (a) False (b) True
  4. 4.🔍 Which is the odd one out? (a) graphite (b) aluminium (c) brass (d) rubber
  5. 5.Which of these needs a waterproof material? (a) a spectacle lens (b) an oven glove (c) a car seat belt (d) a raincoat
  6. 6.🧱 Is cotton cloth an electrical conductor or an insulator? (a) a conductor (b) an insulator
  7. 7.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
  8. 8.🧱 Which property matters most for a skipping rope? (a) flexible (b) waterproof (c) electrical conductor (d) heat insulator
  9. 9.🧱 Which property matters most for the core of a wire? (a) transparent (b) flexible (c) heat insulator (d) electrical conductor
  10. 10.🧱 Which property matters most for a car windscreen? (a) flexible (b) transparent (c) waterproof (d) heat insulator
  11. 11.🔍 Which is the odd one out? (a) aluminium (b) glass (c) copper (d) brass
  12. 12.Which of these needs an electrical conductor? (a) a plug pin (b) a yoga mat (c) a car seat belt (d) an umbrella cover
  13. 13.🔍 Which is the odd one out? (a) glass (b) plastic (c) steel (d) clay pottery
  14. 14.Which of these needs a flexible material? (a) a switch contact (b) a water tank (c) a skipping rope (d) a raincoat
  15. 15.🧱 Which property matters most for an umbrella cover? (a) heat insulator (b) electrical conductor (c) transparent (d) waterproof
  16. 16.True or false: a window pane needs a transparent material. (a) False (b) True
  17. 17.🧱 Which property matters most for a water tank? (a) waterproof (b) heat insulator (c) electrical conductor (d) transparent
  18. 18.🧱 Is clay pottery an electrical conductor or an insulator? (a) a conductor (b) an insulator
  19. 19.🧱 Is steel an electrical conductor or an insulator? (a) a conductor (b) an insulator
  20. 20.🧱 Which property matters most for a magnifier lens? (a) transparent (b) flexible (c) electrical conductor (d) waterproof
  21. 21.🧱 Which property matters most for a switch contact? (a) flexible (b) heat insulator (c) transparent (d) electrical conductor
  22. 22.Which of these needs a transparent material? (a) a skipping rope (b) an umbrella cover (c) a car windscreen (d) a hair band
  23. 23.🔍 Which is the odd one out? (a) dry wood (b) rubber (c) aluminium (d) plastic
  24. 24.🧱 Which material is best for the core of an electric wire? (a) copper (b) wood (c) glass (d) rubber
  25. 25.🧱 Is graphite an electrical conductor or an insulator? (a) an insulator (b) a conductor
  26. 26.🧱 Which property matters most for a roof sheet? (a) heat insulator (b) waterproof (c) electrical conductor (d) transparent
  27. 27.True or false: a switch contact needs a waterproof material. (a) False (b) True
  28. 28.🧱 Which property matters most for a cooking pot handle? (a) transparent (b) heat insulator (c) electrical conductor (d) waterproof
  29. 29.🧱 Which material is best for the bars inside concrete? (a) plastic (b) rubber (c) steel (d) glass
  30. 30.🧱 Which property matters most for a boat hull? (a) transparent (b) waterproof (c) electrical conductor (d) heat insulator
  31. 31.True or false: a raincoat needs an electrical conductor. (a) True (b) False
  32. 32.🧱 Is aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
  33. 33.🧱 Which property matters most for a raincoat? (a) flexible (b) transparent (c) heat insulator (d) waterproof
  34. 34.True or false: a car seat belt needs a flexible material. (a) False (b) True
  35. 35.🧱 Which property matters most for a car seat belt? (a) heat insulator (b) transparent (c) electrical conductor (d) flexible
  36. 36.🔍 Which is the odd one out? (a) aluminium (b) steel (c) plastic (d) copper
  37. 37.🧱 Which property matters most for a hair band? (a) transparent (b) heat insulator (c) electrical conductor (d) flexible
  38. 38.True or false: a plug pin needs a flexible material. (a) False (b) True
  39. 39.Which of these needs a transparent material? (a) a car seat belt (b) a window pane (c) the core of a wire (d) a roof sheet
  40. 40.True or false: a boat hull needs a flexible material. (a) False (b) True

Answer key

  1. a hair band
  2. wood or plastic
  3. False
  4. rubber
  5. a raincoat
  6. an insulator
  7. an insulator
  8. flexible
  9. electrical conductor
  10. transparent
  11. glass
  12. a plug pin
  13. steel
  14. a skipping rope
  15. waterproof
  16. True
  17. waterproof
  18. an insulator
  19. a conductor
  20. transparent
  21. electrical conductor
  22. a car windscreen
  23. aluminium
  24. copper
  25. a conductor
  26. waterproof
  27. False
  28. heat insulator
  29. steel
  30. waterproof
  31. False
  32. a conductor
  33. waterproof
  34. True
  35. flexible
  36. plastic
  37. flexible
  38. False
  39. a window pane
  40. False

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