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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 314 · 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.True or false: a boat hull needs a heat insulator. (a) False (b) True
  2. 2.Which of these needs a heat insulator? (a) a skipping rope (b) an oven glove (c) a raincoat (d) a water tank
  3. 3.Which of these needs a flexible material? (a) a magnifier lens (b) a car seat belt (c) a spectacle lens (d) a switch contact
  4. 4.Which of these needs a transparent material? (a) a boat hull (b) a magnifier lens (c) a water tank (d) a raincoat
  5. 5.Which of these needs a waterproof material? (a) a tea flask lining (b) an umbrella cover (c) a car seat belt (d) a hair band
  6. 6.🧱 Which material is best for a cooking pot handle? (a) wood or plastic (b) aluminium (c) copper (d) iron
  7. 7.🧱 Which property matters most for a switch contact? (a) waterproof (b) transparent (c) flexible (d) electrical conductor
  8. 8.🧱 Which material is best for the core of an electric wire? (a) glass (b) copper (c) rubber (d) wood
  9. 9.True or false: a window pane needs a transparent material. (a) False (b) True
  10. 10.Which of these needs an electrical conductor? (a) a spectacle lens (b) a hair band (c) the core of a wire (d) a magnifier lens
  11. 11.Which of these needs a waterproof material? (a) a hair band (b) a cooking pot handle (c) a spectacle lens (d) a raincoat
  12. 12.🧱 Is copper an electrical conductor or an insulator? (a) a conductor (b) an insulator
  13. 13.True or false: a yoga mat needs a heat insulator. (a) True (b) False
  14. 14.Which of these needs an electrical conductor? (a) a skipping rope (b) an umbrella cover (c) a raincoat (d) a plug pin
  15. 15.🔍 Which is the odd one out? (a) iron (b) steel (c) clay pottery (d) brass
  16. 16.🧱 Which property matters most for a water tank? (a) electrical conductor (b) transparent (c) flexible (d) waterproof
  17. 17.🧱 Is glass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  18. 18.🧱 Which property matters most for a car seat belt? (a) flexible (b) transparent (c) electrical conductor (d) waterproof
  19. 19.🧱 Is steel an electrical conductor or an insulator? (a) a conductor (b) an insulator
  20. 20.🧱 Is brass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  21. 21.🧱 Which material is best for a raincoat? (a) cotton wool (b) paper (c) cardboard (d) plastic-coated cloth
  22. 22.True or false: a raincoat needs a waterproof material. (a) True (b) False
  23. 23.🧱 Is rubber an electrical conductor or an insulator? (a) an insulator (b) a conductor
  24. 24.Which of these needs a heat insulator? (a) a switch contact (b) a car windscreen (c) a tea flask lining (d) a roof sheet
  25. 25.🔍 Which is the odd one out? (a) clay pottery (b) plastic (c) brass (d) glass
  26. 26.True or false: an umbrella cover needs a waterproof material. (a) True (b) False
  27. 27.True or false: a raincoat needs a heat insulator. (a) False (b) True
  28. 28.🧱 Which property matters most for a boat hull? (a) heat insulator (b) transparent (c) waterproof (d) electrical conductor
  29. 29.🔍 Which is the odd one out? (a) rubber (b) copper (c) glass (d) dry wood
  30. 30.🧱 Which property matters most for a hair band? (a) electrical conductor (b) flexible (c) heat insulator (d) waterproof
  31. 31.🧱 Which property matters most for a plug pin? (a) heat insulator (b) waterproof (c) flexible (d) electrical conductor
  32. 32.🧱 Which material is best for the bars inside concrete? (a) plastic (b) rubber (c) steel (d) glass
  33. 33.🔍 Which is the odd one out? (a) cotton cloth (b) graphite (c) plastic (d) clay pottery
  34. 34.Which of these needs a heat insulator? (a) a window pane (b) a magnifier lens (c) a cooking pot handle (d) a raincoat
  35. 35.True or false: an umbrella cover needs a transparent material. (a) True (b) False
  36. 36.🧱 Which material is best for a window pane? (a) steel (b) brick (c) glass (d) wood
  37. 37.🧱 Which property matters most for an umbrella cover? (a) transparent (b) heat insulator (c) waterproof (d) electrical conductor
  38. 38.🧱 Is clay pottery an electrical conductor or an insulator? (a) a conductor (b) an insulator
  39. 39.Which of these needs a flexible material? (a) a hair band (b) a car windscreen (c) a cooking pot handle (d) the core of a wire
  40. 40.True or false: a car windscreen needs an electrical conductor. (a) False (b) True

Answer key

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

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