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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 98 · 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 raincoat? (a) cardboard (b) paper (c) cotton wool (d) plastic-coated cloth
  2. 2.🔍 Which is the odd one out? (a) glass (b) brass (c) steel (d) iron
  3. 3.Which of these needs a flexible material? (a) a water tank (b) a magnifier lens (c) the core of a wire (d) a car seat belt
  4. 4.🧱 Which property matters most for a spectacle lens? (a) heat insulator (b) waterproof (c) electrical conductor (d) transparent
  5. 5.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
  6. 6.🧱 Which property matters most for a hair band? (a) transparent (b) waterproof (c) electrical conductor (d) flexible
  7. 7.🔍 Which is the odd one out? (a) glass (b) dry wood (c) plastic (d) brass
  8. 8.True or false: a switch contact needs an electrical conductor. (a) False (b) True
  9. 9.Which of these needs an electrical conductor? (a) a spectacle lens (b) an umbrella cover (c) a switch contact (d) a yoga mat
  10. 10.True or false: a yoga mat needs a waterproof material. (a) False (b) True
  11. 11.True or false: a spectacle lens needs a waterproof material. (a) False (b) True
  12. 12.Which of these needs a heat insulator? (a) the core of a wire (b) an umbrella cover (c) an oven glove (d) a plug pin
  13. 13.Which of these needs a flexible material? (a) a switch contact (b) a hair band (c) a magnifier lens (d) a window pane
  14. 14.🧱 Which material is best for a window pane? (a) steel (b) wood (c) brick (d) glass
  15. 15.🧱 Which property matters most for a car windscreen? (a) transparent (b) electrical conductor (c) heat insulator (d) flexible
  16. 16.Which of these needs a flexible material? (a) an umbrella cover (b) a switch contact (c) the core of a wire (d) a yoga mat
  17. 17.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  18. 18.🔍 Which is the odd one out? (a) steel (b) clay pottery (c) copper (d) graphite
  19. 19.🧱 Which material is best for a cooking pot handle? (a) copper (b) iron (c) aluminium (d) wood or plastic
  20. 20.Which of these needs a flexible material? (a) a window pane (b) a skipping rope (c) a switch contact (d) a magnifier lens
  21. 21.Which of these needs an electrical conductor? (a) a car seat belt (b) an umbrella cover (c) a raincoat (d) the core of a wire
  22. 22.🧱 Which property matters most for a boat hull? (a) heat insulator (b) flexible (c) electrical conductor (d) waterproof
  23. 23.True or false: a water tank needs a waterproof material. (a) False (b) True
  24. 24.Which of these needs a transparent material? (a) a yoga mat (b) a skipping rope (c) a car windscreen (d) a tea flask lining
  25. 25.True or false: a water tank needs a transparent material. (a) False (b) True
  26. 26.🔍 Which is the odd one out? (a) steel (b) aluminium (c) graphite (d) rubber
  27. 27.True or false: a roof sheet needs a flexible material. (a) True (b) False
  28. 28.🧱 Is rubber an electrical conductor or an insulator? (a) an insulator (b) a conductor
  29. 29.🧱 Is glass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  30. 30.🔍 Which is the odd one out? (a) cotton cloth (b) steel (c) clay pottery (d) plastic
  31. 31.🧱 Which property matters most for an oven glove? (a) flexible (b) heat insulator (c) transparent (d) waterproof
  32. 32.🔍 Which is the odd one out? (a) steel (b) graphite (c) dry wood (d) aluminium
  33. 33.🔍 Which is the odd one out? (a) cotton cloth (b) clay pottery (c) dry wood (d) aluminium
  34. 34.🔍 Which is the odd one out? (a) plastic (b) copper (c) rubber (d) glass
  35. 35.Which of these needs a waterproof material? (a) a magnifier lens (b) a plug pin (c) a switch contact (d) a boat hull
  36. 36.True or false: a window pane needs an electrical conductor. (a) True (b) False
  37. 37.🔍 Which is the odd one out? (a) plastic (b) glass (c) iron (d) cotton cloth
  38. 38.True or false: a boat hull needs a flexible material. (a) True (b) False
  39. 39.🧱 Which material is best for the core of an electric wire? (a) rubber (b) glass (c) copper (d) wood
  40. 40.True or false: a car seat belt needs a transparent material. (a) True (b) False

Answer key

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

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