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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 89 · 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 roof sheet needs a waterproof material. (a) False (b) True
  2. 2.🧱 Which property matters most for a car seat belt? (a) electrical conductor (b) flexible (c) waterproof (d) transparent
  3. 3.🧱 Which material is best for the bars inside concrete? (a) glass (b) steel (c) plastic (d) rubber
  4. 4.🧱 Which property matters most for a magnifier lens? (a) heat insulator (b) transparent (c) flexible (d) electrical conductor
  5. 5.🔍 Which is the odd one out? (a) glass (b) brass (c) graphite (d) iron
  6. 6.Which of these needs an electrical conductor? (a) a water tank (b) a magnifier lens (c) a hair band (d) the core of a wire
  7. 7.🧱 Which property matters most for a hair band? (a) waterproof (b) heat insulator (c) flexible (d) electrical conductor
  8. 8.🧱 Is graphite an electrical conductor or an insulator? (a) an insulator (b) a conductor
  9. 9.True or false: a yoga mat needs a transparent material. (a) False (b) True
  10. 10.Which of these needs a transparent material? (a) a spectacle lens (b) a cooking pot handle (c) an oven glove (d) a hair band
  11. 11.🧱 Which material is best for a raincoat? (a) cardboard (b) cotton wool (c) paper (d) plastic-coated cloth
  12. 12.🧱 Is brass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  13. 13.🧱 Is rubber an electrical conductor or an insulator? (a) an insulator (b) a conductor
  14. 14.Which of these needs a waterproof material? (a) a plug pin (b) an oven glove (c) a car windscreen (d) a water tank
  15. 15.🔍 Which is the odd one out? (a) iron (b) graphite (c) copper (d) plastic
  16. 16.🔍 Which is the odd one out? (a) clay pottery (b) aluminium (c) copper (d) graphite
  17. 17.🧱 Which property matters most for a skipping rope? (a) flexible (b) transparent (c) electrical conductor (d) heat insulator
  18. 18.Which of these needs a heat insulator? (a) a roof sheet (b) a car windscreen (c) a cooking pot handle (d) a water tank
  19. 19.🧱 Is iron an electrical conductor or an insulator? (a) a conductor (b) an insulator
  20. 20.🧱 Which material is best for a window pane? (a) wood (b) brick (c) steel (d) glass
  21. 21.True or false: a skipping rope needs a flexible material. (a) True (b) False
  22. 22.🧱 Which material is best for the core of an electric wire? (a) wood (b) copper (c) glass (d) rubber
  23. 23.🧱 Which property matters most for a water tank? (a) heat insulator (b) flexible (c) waterproof (d) transparent
  24. 24.Which of these needs a waterproof material? (a) a spectacle lens (b) a boat hull (c) a magnifier lens (d) a car seat belt
  25. 25.Which of these needs a transparent material? (a) an oven glove (b) a water tank (c) a window pane (d) a tea flask lining
  26. 26.True or false: a raincoat needs an electrical conductor. (a) False (b) True
  27. 27.🧱 Which property matters most for a car windscreen? (a) waterproof (b) transparent (c) flexible (d) heat insulator
  28. 28.🔍 Which is the odd one out? (a) steel (b) rubber (c) dry wood (d) glass
  29. 29.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
  30. 30.Which of these needs a flexible material? (a) a roof sheet (b) an umbrella cover (c) a car seat belt (d) a switch contact
  31. 31.True or false: a raincoat needs a transparent material. (a) True (b) False
  32. 32.Which of these needs a flexible material? (a) a skipping rope (b) a cooking pot handle (c) a raincoat (d) an umbrella cover
  33. 33.🔍 Which is the odd one out? (a) steel (b) cotton cloth (c) graphite (d) brass
  34. 34.🔍 Which is the odd one out? (a) dry wood (b) clay pottery (c) copper (d) rubber
  35. 35.🧱 Which property matters most for a raincoat? (a) electrical conductor (b) waterproof (c) flexible (d) heat insulator
  36. 36.Which of these needs a transparent material? (a) a water tank (b) a boat hull (c) a roof sheet (d) a magnifier lens
  37. 37.🔍 Which is the odd one out? (a) copper (b) graphite (c) dry wood (d) aluminium
  38. 38.🔍 Which is the odd one out? (a) brass (b) rubber (c) dry wood (d) clay pottery
  39. 39.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  40. 40.True or false: a water tank needs a waterproof material. (a) False (b) True

Answer key

  1. True
  2. flexible
  3. steel
  4. transparent
  5. glass
  6. the core of a wire
  7. flexible
  8. a conductor
  9. False
  10. a spectacle lens
  11. plastic-coated cloth
  12. a conductor
  13. an insulator
  14. a water tank
  15. plastic
  16. clay pottery
  17. flexible
  18. a cooking pot handle
  19. a conductor
  20. glass
  21. True
  22. copper
  23. waterproof
  24. a boat hull
  25. a window pane
  26. False
  27. transparent
  28. steel
  29. an insulator
  30. a car seat belt
  31. False
  32. a skipping rope
  33. cotton cloth
  34. copper
  35. waterproof
  36. a magnifier lens
  37. dry wood
  38. brass
  39. a conductor
  40. True

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