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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 705 · 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 material is best for a raincoat? (a) paper (b) cardboard (c) cotton wool (d) plastic-coated cloth
  2. 2.🧱 Which material is best for the core of an electric wire? (a) wood (b) rubber (c) glass (d) copper
  3. 3.Which of these needs a waterproof material? (a) a skipping rope (b) a window pane (c) a raincoat (d) a spectacle lens
  4. 4.🔍 Which is the odd one out? (a) clay pottery (b) glass (c) aluminium (d) cotton cloth
  5. 5.🔍 Which is the odd one out? (a) cotton cloth (b) dry wood (c) steel (d) clay pottery
  6. 6.🧱 Which material is best for a cooking pot handle? (a) copper (b) iron (c) aluminium (d) wood or plastic
  7. 7.Which of these needs a waterproof material? (a) a roof sheet (b) a magnifier lens (c) a hair band (d) an oven glove
  8. 8.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
  9. 9.🧱 Which property matters most for a magnifier lens? (a) electrical conductor (b) transparent (c) heat insulator (d) flexible
  10. 10.🧱 Which material is best for a window pane? (a) brick (b) wood (c) glass (d) steel
  11. 11.Which of these needs a flexible material? (a) a skipping rope (b) a plug pin (c) an umbrella cover (d) a car windscreen
  12. 12.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
  13. 13.🧱 Which material is best for the bars inside concrete? (a) steel (b) rubber (c) plastic (d) glass
  14. 14.True or false: a car windscreen needs a waterproof material. (a) True (b) False
  15. 15.True or false: a skipping rope needs a transparent material. (a) True (b) False
  16. 16.Which of these needs a waterproof material? (a) a plug pin (b) a car seat belt (c) an umbrella cover (d) a switch contact
  17. 17.Which of these needs a heat insulator? (a) a skipping rope (b) a cooking pot handle (c) a boat hull (d) a yoga mat
  18. 18.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  19. 19.🔍 Which is the odd one out? (a) rubber (b) cotton cloth (c) dry wood (d) iron
  20. 20.🧱 Which property matters most for a tea flask lining? (a) electrical conductor (b) heat insulator (c) waterproof (d) flexible
  21. 21.🧱 Which property matters most for a water tank? (a) flexible (b) transparent (c) waterproof (d) electrical conductor
  22. 22.True or false: a boat hull needs an electrical conductor. (a) False (b) True
  23. 23.🔍 Which is the odd one out? (a) iron (b) brass (c) aluminium (d) rubber
  24. 24.🧱 Which property matters most for a cooking pot handle? (a) heat insulator (b) transparent (c) flexible (d) waterproof
  25. 25.Which of these needs a transparent material? (a) a car windscreen (b) an oven glove (c) a water tank (d) a hair band
  26. 26.🔍 Which is the odd one out? (a) dry wood (b) aluminium (c) brass (d) iron
  27. 27.True or false: a plug pin needs a flexible material. (a) False (b) True
  28. 28.🧱 Is glass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  29. 29.🧱 Is copper an electrical conductor or an insulator? (a) a conductor (b) an insulator
  30. 30.🧱 Is rubber an electrical conductor or an insulator? (a) a conductor (b) an insulator
  31. 31.True or false: an umbrella cover needs a flexible material. (a) True (b) False
  32. 32.🧱 Which property matters most for a skipping rope? (a) flexible (b) heat insulator (c) waterproof (d) electrical conductor
  33. 33.True or false: a magnifier lens needs a flexible material. (a) False (b) True
  34. 34.True or false: a hair band needs a flexible material. (a) False (b) True
  35. 35.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  36. 36.🧱 Which property matters most for a car seat belt? (a) waterproof (b) heat insulator (c) transparent (d) flexible
  37. 37.🧱 Which property matters most for a car windscreen? (a) electrical conductor (b) transparent (c) waterproof (d) heat insulator
  38. 38.True or false: a yoga mat needs a flexible material. (a) True (b) False
  39. 39.🧱 Which property matters most for a plug pin? (a) transparent (b) flexible (c) waterproof (d) electrical conductor
  40. 40.Which of these needs a heat insulator? (a) a boat hull (b) a magnifier lens (c) a water tank (d) an oven glove

Answer key

  1. plastic-coated cloth
  2. copper
  3. a raincoat
  4. aluminium
  5. steel
  6. wood or plastic
  7. a roof sheet
  8. an insulator
  9. transparent
  10. glass
  11. a skipping rope
  12. a conductor
  13. steel
  14. False
  15. False
  16. an umbrella cover
  17. a cooking pot handle
  18. a conductor
  19. iron
  20. heat insulator
  21. waterproof
  22. False
  23. rubber
  24. heat insulator
  25. a car windscreen
  26. dry wood
  27. False
  28. an insulator
  29. a conductor
  30. an insulator
  31. False
  32. flexible
  33. False
  34. True
  35. a conductor
  36. flexible
  37. transparent
  38. True
  39. electrical conductor
  40. an oven glove

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