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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 897 · 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 of these needs a heat insulator? (a) a tea flask lining (b) the core of a wire (c) a spectacle lens (d) a window pane
  2. 2.🧱 Which material is best for a raincoat? (a) paper (b) cotton wool (c) plastic-coated cloth (d) cardboard
  3. 3.🧱 Is plastic an electrical conductor or an insulator? (a) an insulator (b) a conductor
  4. 4.True or false: a magnifier lens needs a waterproof material. (a) False (b) True
  5. 5.🧱 Which material is best for a window pane? (a) steel (b) glass (c) wood (d) brick
  6. 6.🧱 Which property matters most for a plug pin? (a) electrical conductor (b) flexible (c) heat insulator (d) transparent
  7. 7.🧱 Is copper an electrical conductor or an insulator? (a) a conductor (b) an insulator
  8. 8.🧱 Is brass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  9. 9.Which of these needs a flexible material? (a) a plug pin (b) an oven glove (c) a car windscreen (d) a car seat belt
  10. 10.True or false: the core of a wire needs an electrical conductor. (a) True (b) False
  11. 11.Which of these needs a waterproof material? (a) a car seat belt (b) a tea flask lining (c) a raincoat (d) the core of a wire
  12. 12.Which of these needs an electrical conductor? (a) a switch contact (b) an oven glove (c) a tea flask lining (d) a hair band
  13. 13.Which of these needs a waterproof material? (a) a spectacle lens (b) an oven glove (c) a water tank (d) a car seat belt
  14. 14.🔍 Which is the odd one out? (a) cotton cloth (b) rubber (c) aluminium (d) glass
  15. 15.True or false: a water tank needs a transparent material. (a) True (b) False
  16. 16.🧱 Is aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
  17. 17.🔍 Which is the odd one out? (a) graphite (b) clay pottery (c) rubber (d) cotton cloth
  18. 18.🧱 Which material is best for a cooking pot handle? (a) iron (b) aluminium (c) wood or plastic (d) copper
  19. 19.True or false: a car windscreen needs a heat insulator. (a) False (b) True
  20. 20.Which of these needs a flexible material? (a) the core of a wire (b) a magnifier lens (c) a spectacle lens (d) a hair band
  21. 21.🧱 Which property matters most for a window pane? (a) transparent (b) heat insulator (c) flexible (d) waterproof
  22. 22.🧱 Is clay pottery an electrical conductor or an insulator? (a) a conductor (b) an insulator
  23. 23.🧱 Which material is best for the bars inside concrete? (a) glass (b) rubber (c) steel (d) plastic
  24. 24.🧱 Is dry wood an electrical conductor or an insulator? (a) a conductor (b) an insulator
  25. 25.🧱 Which property matters most for a raincoat? (a) heat insulator (b) transparent (c) waterproof (d) flexible
  26. 26.True or false: a car seat belt needs a flexible material. (a) False (b) True
  27. 27.🔍 Which is the odd one out? (a) brass (b) steel (c) cotton cloth (d) aluminium
  28. 28.🔍 Which is the odd one out? (a) iron (b) dry wood (c) aluminium (d) graphite
  29. 29.Which of these needs a flexible material? (a) an oven glove (b) a water tank (c) the core of a wire (d) a skipping rope
  30. 30.🧱 Is glass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  31. 31.🧱 Which property matters most for a skipping rope? (a) transparent (b) waterproof (c) heat insulator (d) flexible
  32. 32.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
  33. 33.🧱 Which property matters most for an umbrella cover? (a) transparent (b) flexible (c) waterproof (d) heat insulator
  34. 34.🧱 Is rubber an electrical conductor or an insulator? (a) an insulator (b) a conductor
  35. 35.🔍 Which is the odd one out? (a) clay pottery (b) plastic (c) iron (d) glass
  36. 36.Which of these needs a transparent material? (a) a cooking pot handle (b) a skipping rope (c) a raincoat (d) a magnifier lens
  37. 37.🔍 Which is the odd one out? (a) graphite (b) iron (c) rubber (d) steel
  38. 38.True or false: a roof sheet needs a flexible material. (a) False (b) True
  39. 39.Which of these needs a waterproof material? (a) a car seat belt (b) a magnifier lens (c) a roof sheet (d) a hair band
  40. 40.🧱 Which property matters most for the core of a wire? (a) electrical conductor (b) waterproof (c) flexible (d) transparent

Answer key

  1. a tea flask lining
  2. plastic-coated cloth
  3. an insulator
  4. False
  5. glass
  6. electrical conductor
  7. a conductor
  8. a conductor
  9. a car seat belt
  10. True
  11. a raincoat
  12. a switch contact
  13. a water tank
  14. aluminium
  15. False
  16. a conductor
  17. graphite
  18. wood or plastic
  19. False
  20. a hair band
  21. transparent
  22. an insulator
  23. steel
  24. an insulator
  25. waterproof
  26. True
  27. cotton cloth
  28. dry wood
  29. a skipping rope
  30. an insulator
  31. flexible
  32. a conductor
  33. waterproof
  34. an insulator
  35. iron
  36. a magnifier lens
  37. rubber
  38. False
  39. a roof sheet
  40. electrical conductor

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