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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 972 · 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 is the odd one out? (a) iron (b) graphite (c) steel (d) rubber
  2. 2.Which of these needs a heat insulator? (a) a boat hull (b) a switch contact (c) an oven glove (d) a raincoat
  3. 3.Which of these needs a flexible material? (a) the core of a wire (b) a plug pin (c) an oven glove (d) a skipping rope
  4. 4.🧱 Which property matters most for a hair band? (a) heat insulator (b) flexible (c) waterproof (d) transparent
  5. 5.Which of these needs a transparent material? (a) a car seat belt (b) a car windscreen (c) a plug pin (d) a boat hull
  6. 6.🔍 Which is the odd one out? (a) copper (b) plastic (c) iron (d) aluminium
  7. 7.🧱 Which material is best for the bars inside concrete? (a) steel (b) plastic (c) rubber (d) glass
  8. 8.🔍 Which is the odd one out? (a) glass (b) dry wood (c) iron (d) cotton cloth
  9. 9.🧱 Is copper an electrical conductor or an insulator? (a) a conductor (b) an insulator
  10. 10.🧱 Is rubber an electrical conductor or an insulator? (a) an insulator (b) a conductor
  11. 11.🧱 Which material is best for the core of an electric wire? (a) wood (b) rubber (c) copper (d) glass
  12. 12.🧱 Is dry wood an electrical conductor or an insulator? (a) a conductor (b) an insulator
  13. 13.🧱 Which property matters most for a yoga mat? (a) waterproof (b) flexible (c) transparent (d) electrical conductor
  14. 14.🧱 Which material is best for a raincoat? (a) paper (b) cotton wool (c) plastic-coated cloth (d) cardboard
  15. 15.Which of these needs a waterproof material? (a) a car seat belt (b) a tea flask lining (c) a window pane (d) a raincoat
  16. 16.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
  17. 17.🧱 Which material is best for a cooking pot handle? (a) copper (b) wood or plastic (c) iron (d) aluminium
  18. 18.🔍 Which is the odd one out? (a) rubber (b) steel (c) clay pottery (d) glass
  19. 19.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  20. 20.True or false: a car windscreen needs a transparent material. (a) True (b) False
  21. 21.True or false: a window pane needs a transparent material. (a) True (b) False
  22. 22.🧱 Is cotton cloth an electrical conductor or an insulator? (a) an insulator (b) a conductor
  23. 23.Which of these needs an electrical conductor? (a) a car windscreen (b) a hair band (c) a plug pin (d) an oven glove
  24. 24.🧱 Which property matters most for a window pane? (a) flexible (b) waterproof (c) transparent (d) electrical conductor
  25. 25.Which of these needs a waterproof material? (a) a yoga mat (b) an umbrella cover (c) a car windscreen (d) a hair band
  26. 26.🧱 Which property matters most for a spectacle lens? (a) heat insulator (b) transparent (c) waterproof (d) flexible
  27. 27.🧱 Which property matters most for an umbrella cover? (a) waterproof (b) flexible (c) transparent (d) electrical conductor
  28. 28.🔍 Which is the odd one out? (a) graphite (b) copper (c) glass (d) steel
  29. 29.🧱 Which property matters most for a car windscreen? (a) waterproof (b) flexible (c) heat insulator (d) transparent
  30. 30.🧱 Is clay pottery an electrical conductor or an insulator? (a) an insulator (b) a conductor
  31. 31.Which of these needs a transparent material? (a) a magnifier lens (b) an oven glove (c) a car seat belt (d) a plug pin
  32. 32.🧱 Which property matters most for a skipping rope? (a) flexible (b) transparent (c) waterproof (d) heat insulator
  33. 33.Which of these needs a heat insulator? (a) a plug pin (b) a car windscreen (c) a tea flask lining (d) a window pane
  34. 34.🧱 Which property matters most for a boat hull? (a) electrical conductor (b) waterproof (c) heat insulator (d) transparent
  35. 35.Which of these needs a flexible material? (a) a plug pin (b) a car seat belt (c) a raincoat (d) a spectacle lens
  36. 36.🧱 Which property matters most for a water tank? (a) flexible (b) transparent (c) heat insulator (d) waterproof
  37. 37.True or false: a raincoat needs an electrical conductor. (a) False (b) True
  38. 38.True or false: a spectacle lens needs a transparent material. (a) False (b) True
  39. 39.True or false: a car seat belt needs a waterproof material. (a) True (b) False
  40. 40.Which of these needs a flexible material? (a) a magnifier lens (b) an oven glove (c) a yoga mat (d) a water tank

Answer key

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

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