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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 385 · 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 window pane? (a) wood (b) brick (c) steel (d) glass
  2. 2.🧱 Which material is best for the bars inside concrete? (a) plastic (b) glass (c) steel (d) rubber
  3. 3.Which of these needs a flexible material? (a) a skipping rope (b) an umbrella cover (c) a window pane (d) a switch contact
  4. 4.🧱 Which material is best for the core of an electric wire? (a) wood (b) glass (c) rubber (d) copper
  5. 5.Which of these needs a transparent material? (a) a roof sheet (b) a water tank (c) a car windscreen (d) a boat hull
  6. 6.🧱 Is clay pottery an electrical conductor or an insulator? (a) a conductor (b) an insulator
  7. 7.True or false: a plug pin needs a waterproof material. (a) True (b) False
  8. 8.True or false: a car windscreen needs a transparent material. (a) False (b) True
  9. 9.Which of these needs a waterproof material? (a) a spectacle lens (b) a raincoat (c) a car windscreen (d) a yoga mat
  10. 10.True or false: the core of a wire needs a waterproof material. (a) True (b) False
  11. 11.Which of these needs an electrical conductor? (a) a tea flask lining (b) a raincoat (c) an oven glove (d) a plug pin
  12. 12.🧱 Which property matters most for a window pane? (a) flexible (b) heat insulator (c) transparent (d) waterproof
  13. 13.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  14. 14.🧱 Which property matters most for the core of a wire? (a) heat insulator (b) electrical conductor (c) waterproof (d) transparent
  15. 15.Which of these needs a heat insulator? (a) a water tank (b) an oven glove (c) a boat hull (d) a hair band
  16. 16.🔍 Which is the odd one out? (a) aluminium (b) graphite (c) dry wood (d) copper
  17. 17.🔍 Which is the odd one out? (a) copper (b) steel (c) graphite (d) cotton cloth
  18. 18.🔍 Which is the odd one out? (a) brass (b) plastic (c) graphite (d) iron
  19. 19.🔍 Which is the odd one out? (a) brass (b) cotton cloth (c) glass (d) dry wood
  20. 20.🔍 Which is the odd one out? (a) rubber (b) graphite (c) clay pottery (d) cotton cloth
  21. 21.🧱 Which property matters most for a roof sheet? (a) electrical conductor (b) heat insulator (c) waterproof (d) flexible
  22. 22.🧱 Which property matters most for a raincoat? (a) flexible (b) electrical conductor (c) waterproof (d) heat insulator
  23. 23.True or false: a magnifier lens needs a flexible material. (a) False (b) True
  24. 24.🧱 Is rubber an electrical conductor or an insulator? (a) an insulator (b) a conductor
  25. 25.Which of these needs a heat insulator? (a) a tea flask lining (b) the core of a wire (c) an umbrella cover (d) a raincoat
  26. 26.🧱 Which property matters most for a spectacle lens? (a) heat insulator (b) flexible (c) electrical conductor (d) transparent
  27. 27.True or false: a yoga mat needs a waterproof material. (a) False (b) True
  28. 28.Which of these needs an electrical conductor? (a) an umbrella cover (b) a boat hull (c) a cooking pot handle (d) the core of a wire
  29. 29.🧱 Which property matters most for a boat hull? (a) electrical conductor (b) flexible (c) waterproof (d) heat insulator
  30. 30.Which of these needs an electrical conductor? (a) a skipping rope (b) a magnifier lens (c) a switch contact (d) a window pane
  31. 31.True or false: a boat hull needs a transparent material. (a) True (b) False
  32. 32.Which of these needs a heat insulator? (a) a car seat belt (b) a spectacle lens (c) a cooking pot handle (d) a water tank
  33. 33.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
  34. 34.Which of these needs a flexible material? (a) an umbrella cover (b) a tea flask lining (c) a magnifier lens (d) a car seat belt
  35. 35.True or false: a magnifier lens needs a transparent material. (a) True (b) False
  36. 36.🧱 Which property matters most for a switch contact? (a) heat insulator (b) waterproof (c) electrical conductor (d) flexible
  37. 37.🧱 Is dry wood an electrical conductor or an insulator? (a) an insulator (b) a conductor
  38. 38.Which of these needs a flexible material? (a) a magnifier lens (b) a yoga mat (c) a boat hull (d) a car windscreen
  39. 39.🧱 Which material is best for a raincoat? (a) cotton wool (b) cardboard (c) paper (d) plastic-coated cloth
  40. 40.Which of these needs a flexible material? (a) a boat hull (b) a raincoat (c) an oven glove (d) a hair band

Answer key

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

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