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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 661 · 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 yoga mat? (a) electrical conductor (b) heat insulator (c) transparent (d) flexible
  2. 2.Which of these needs a waterproof material? (a) a yoga mat (b) a window pane (c) an umbrella cover (d) a car windscreen
  3. 3.🧱 Which material is best for a raincoat? (a) paper (b) cotton wool (c) cardboard (d) plastic-coated cloth
  4. 4.🔍 Which is the odd one out? (a) rubber (b) copper (c) plastic (d) cotton cloth
  5. 5.🧱 Which material is best for the bars inside concrete? (a) rubber (b) glass (c) plastic (d) steel
  6. 6.🧱 Is plastic an electrical conductor or an insulator? (a) an insulator (b) a conductor
  7. 7.🧱 Which material is best for a window pane? (a) wood (b) steel (c) brick (d) glass
  8. 8.🔍 Which is the odd one out? (a) plastic (b) clay pottery (c) rubber (d) aluminium
  9. 9.🧱 Is steel an electrical conductor or an insulator? (a) a conductor (b) an insulator
  10. 10.🔍 Which is the odd one out? (a) clay pottery (b) cotton cloth (c) glass (d) iron
  11. 11.🔍 Which is the odd one out? (a) aluminium (b) steel (c) copper (d) clay pottery
  12. 12.🧱 Which property matters most for a roof sheet? (a) transparent (b) electrical conductor (c) waterproof (d) flexible
  13. 13.Which of these needs a heat insulator? (a) a boat hull (b) a roof sheet (c) a tea flask lining (d) a window pane
  14. 14.🧱 Which property matters most for an oven glove? (a) heat insulator (b) flexible (c) electrical conductor (d) transparent
  15. 15.🧱 Which property matters most for an umbrella cover? (a) transparent (b) heat insulator (c) flexible (d) waterproof
  16. 16.Which of these needs a waterproof material? (a) a car seat belt (b) a boat hull (c) a plug pin (d) a window pane
  17. 17.Which of these needs a heat insulator? (a) a spectacle lens (b) an umbrella cover (c) a cooking pot handle (d) a car windscreen
  18. 18.Which of these needs a waterproof material? (a) a raincoat (b) a car windscreen (c) a switch contact (d) a plug pin
  19. 19.Which of these needs a flexible material? (a) a boat hull (b) a plug pin (c) a tea flask lining (d) a car seat belt
  20. 20.🔍 Which is the odd one out? (a) graphite (b) copper (c) brass (d) plastic
  21. 21.🧱 Which property matters most for a car windscreen? (a) flexible (b) transparent (c) electrical conductor (d) waterproof
  22. 22.🧱 Is clay pottery an electrical conductor or an insulator? (a) a conductor (b) an insulator
  23. 23.🧱 Which property matters most for a magnifier lens? (a) transparent (b) electrical conductor (c) waterproof (d) heat insulator
  24. 24.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  25. 25.Which of these needs an electrical conductor? (a) a skipping rope (b) the core of a wire (c) an oven glove (d) a car windscreen
  26. 26.🧱 Is rubber an electrical conductor or an insulator? (a) a conductor (b) an insulator
  27. 27.Which of these needs a heat insulator? (a) a magnifier lens (b) a car seat belt (c) an oven glove (d) a boat hull
  28. 28.True or false: a raincoat needs a waterproof material. (a) True (b) False
  29. 29.True or false: a skipping rope needs a flexible material. (a) True (b) False
  30. 30.Which of these needs a flexible material? (a) a switch contact (b) a plug pin (c) the core of a wire (d) a hair band
  31. 31.🧱 Is brass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  32. 32.🧱 Which material is best for the core of an electric wire? (a) glass (b) rubber (c) wood (d) copper
  33. 33.🧱 Is glass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  34. 34.True or false: a yoga mat needs a flexible material. (a) False (b) True
  35. 35.🔍 Which is the odd one out? (a) copper (b) glass (c) steel (d) iron
  36. 36.🧱 Is graphite an electrical conductor or an insulator? (a) a conductor (b) an insulator
  37. 37.🧱 Which property matters most for a skipping rope? (a) transparent (b) waterproof (c) flexible (d) heat insulator
  38. 38.Which of these needs a waterproof material? (a) a magnifier lens (b) a spectacle lens (c) an oven glove (d) a water tank
  39. 39.🧱 Which property matters most for a plug pin? (a) waterproof (b) flexible (c) transparent (d) electrical conductor
  40. 40.True or false: a water tank needs a transparent material. (a) False (b) True

Answer key

  1. flexible
  2. an umbrella cover
  3. plastic-coated cloth
  4. copper
  5. steel
  6. an insulator
  7. glass
  8. aluminium
  9. a conductor
  10. iron
  11. clay pottery
  12. waterproof
  13. a tea flask lining
  14. heat insulator
  15. waterproof
  16. a boat hull
  17. a cooking pot handle
  18. a raincoat
  19. a car seat belt
  20. plastic
  21. transparent
  22. an insulator
  23. transparent
  24. a conductor
  25. the core of a wire
  26. an insulator
  27. an oven glove
  28. True
  29. True
  30. a hair band
  31. a conductor
  32. copper
  33. an insulator
  34. True
  35. glass
  36. a conductor
  37. flexible
  38. a water tank
  39. electrical conductor
  40. False

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