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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 792 · 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) aluminium (b) cotton cloth (c) graphite (d) iron
  2. 2.🧱 Which material is best for the core of an electric wire? (a) wood (b) rubber (c) glass (d) copper
  3. 3.🧱 Which property matters most for a car seat belt? (a) waterproof (b) electrical conductor (c) flexible (d) transparent
  4. 4.🧱 Is cotton cloth an electrical conductor or an insulator? (a) an insulator (b) a conductor
  5. 5.🧱 Is rubber an electrical conductor or an insulator? (a) an insulator (b) a conductor
  6. 6.🔍 Which is the odd one out? (a) graphite (b) cotton cloth (c) dry wood (d) clay pottery
  7. 7.🧱 Which material is best for the bars inside concrete? (a) glass (b) rubber (c) plastic (d) steel
  8. 8.🧱 Is glass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  9. 9.Which of these needs a waterproof material? (a) the core of a wire (b) a car seat belt (c) a yoga mat (d) a water tank
  10. 10.Which of these needs a waterproof material? (a) a car seat belt (b) an oven glove (c) a boat hull (d) a tea flask lining
  11. 11.🧱 Is brass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  12. 12.🧱 Which property matters most for a plug pin? (a) flexible (b) heat insulator (c) electrical conductor (d) transparent
  13. 13.🔍 Which is the odd one out? (a) copper (b) aluminium (c) rubber (d) iron
  14. 14.Which of these needs a transparent material? (a) a car seat belt (b) a hair band (c) a window pane (d) a plug pin
  15. 15.🧱 Which property matters most for a cooking pot handle? (a) heat insulator (b) flexible (c) waterproof (d) electrical conductor
  16. 16.Which of these needs an electrical conductor? (a) the core of a wire (b) a window pane (c) a magnifier lens (d) a car seat belt
  17. 17.True or false: a roof sheet needs a waterproof material. (a) True (b) False
  18. 18.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
  19. 19.🧱 Which property matters most for a raincoat? (a) electrical conductor (b) transparent (c) waterproof (d) flexible
  20. 20.🔍 Which is the odd one out? (a) rubber (b) dry wood (c) iron (d) plastic
  21. 21.Which of these needs an electrical conductor? (a) a car seat belt (b) a yoga mat (c) a switch contact (d) a roof sheet
  22. 22.True or false: a hair band needs an electrical conductor. (a) False (b) True
  23. 23.🔍 Which is the odd one out? (a) glass (b) dry wood (c) copper (d) rubber
  24. 24.🔍 Which is the odd one out? (a) copper (b) clay pottery (c) graphite (d) brass
  25. 25.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  26. 26.🧱 Which property matters most for a hair band? (a) heat insulator (b) flexible (c) electrical conductor (d) waterproof
  27. 27.🧱 Which property matters most for an umbrella cover? (a) waterproof (b) electrical conductor (c) transparent (d) flexible
  28. 28.Which of these needs a flexible material? (a) a boat hull (b) a skipping rope (c) a water tank (d) an oven glove
  29. 29.🧱 Which material is best for a raincoat? (a) paper (b) cotton wool (c) cardboard (d) plastic-coated cloth
  30. 30.🧱 Is graphite an electrical conductor or an insulator? (a) a conductor (b) an insulator
  31. 31.🧱 Is clay pottery an electrical conductor or an insulator? (a) an insulator (b) a conductor
  32. 32.🔍 Which is the odd one out? (a) copper (b) glass (c) graphite (d) iron
  33. 33.🧱 Which property matters most for a roof sheet? (a) transparent (b) waterproof (c) flexible (d) heat insulator
  34. 34.🔍 Which is the odd one out? (a) dry wood (b) steel (c) plastic (d) clay pottery
  35. 35.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  36. 36.True or false: a skipping rope needs a flexible material. (a) False (b) True
  37. 37.Which of these needs a flexible material? (a) a window pane (b) a cooking pot handle (c) a hair band (d) an oven glove
  38. 38.🔍 Which is the odd one out? (a) brass (b) graphite (c) copper (d) dry wood
  39. 39.🧱 Which property matters most for a car windscreen? (a) electrical conductor (b) transparent (c) flexible (d) waterproof
  40. 40.True or false: a car windscreen needs a transparent material. (a) False (b) True

Answer key

  1. cotton cloth
  2. copper
  3. flexible
  4. an insulator
  5. an insulator
  6. graphite
  7. steel
  8. an insulator
  9. a water tank
  10. a boat hull
  11. a conductor
  12. electrical conductor
  13. rubber
  14. a window pane
  15. heat insulator
  16. the core of a wire
  17. True
  18. a conductor
  19. waterproof
  20. iron
  21. a switch contact
  22. False
  23. copper
  24. clay pottery
  25. a conductor
  26. flexible
  27. waterproof
  28. a skipping rope
  29. plastic-coated cloth
  30. a conductor
  31. an insulator
  32. glass
  33. waterproof
  34. steel
  35. a conductor
  36. True
  37. a hair band
  38. dry wood
  39. transparent
  40. True

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