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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 244 · 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) cotton wool (b) plastic-coated cloth (c) cardboard (d) paper
  2. 2.Which of these needs a heat insulator? (a) a water tank (b) a magnifier lens (c) a cooking pot handle (d) a switch contact
  3. 3.Which of these needs a waterproof material? (a) a tea flask lining (b) a roof sheet (c) the core of a wire (d) a plug pin
  4. 4.🧱 Which material is best for a window pane? (a) brick (b) steel (c) glass (d) wood
  5. 5.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
  6. 6.🧱 Which material is best for the core of an electric wire? (a) rubber (b) glass (c) wood (d) copper
  7. 7.🧱 Is brass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  8. 8.🧱 Which property matters most for a raincoat? (a) heat insulator (b) flexible (c) transparent (d) waterproof
  9. 9.Which of these needs a flexible material? (a) an umbrella cover (b) a roof sheet (c) a car seat belt (d) a window pane
  10. 10.True or false: an umbrella cover needs a waterproof material. (a) False (b) True
  11. 11.Which of these needs an electrical conductor? (a) the core of a wire (b) a magnifier lens (c) an oven glove (d) a spectacle lens
  12. 12.🧱 Which property matters most for a skipping rope? (a) electrical conductor (b) transparent (c) flexible (d) waterproof
  13. 13.🧱 Which material is best for the bars inside concrete? (a) plastic (b) rubber (c) glass (d) steel
  14. 14.True or false: a hair band needs a heat insulator. (a) False (b) True
  15. 15.🔍 Which is the odd one out? (a) aluminium (b) copper (c) iron (d) dry wood
  16. 16.Which of these needs a flexible material? (a) a skipping rope (b) a magnifier lens (c) a boat hull (d) a window pane
  17. 17.🧱 Is dry wood an electrical conductor or an insulator? (a) an insulator (b) a conductor
  18. 18.🔍 Which is the odd one out? (a) copper (b) rubber (c) plastic (d) clay pottery
  19. 19.Which of these needs a transparent material? (a) a hair band (b) an umbrella cover (c) a water tank (d) a magnifier lens
  20. 20.True or false: a cooking pot handle needs a flexible material. (a) False (b) True
  21. 21.🧱 Which material is best for a cooking pot handle? (a) copper (b) iron (c) aluminium (d) wood or plastic
  22. 22.Which of these needs a waterproof material? (a) an umbrella cover (b) a skipping rope (c) a window pane (d) a yoga mat
  23. 23.🧱 Which property matters most for a yoga mat? (a) transparent (b) electrical conductor (c) heat insulator (d) flexible
  24. 24.Which of these needs an electrical conductor? (a) a tea flask lining (b) a spectacle lens (c) a plug pin (d) a magnifier lens
  25. 25.🔍 Which is the odd one out? (a) plastic (b) dry wood (c) cotton cloth (d) graphite
  26. 26.Which of these needs a waterproof material? (a) a plug pin (b) a magnifier lens (c) a cooking pot handle (d) a boat hull
  27. 27.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  28. 28.🔍 Which is the odd one out? (a) graphite (b) clay pottery (c) brass (d) steel
  29. 29.🧱 Which property matters most for a tea flask lining? (a) flexible (b) electrical conductor (c) waterproof (d) heat insulator
  30. 30.Which of these needs a flexible material? (a) a switch contact (b) a boat hull (c) a hair band (d) a tea flask lining
  31. 31.True or false: a hair band needs a waterproof material. (a) False (b) True
  32. 32.True or false: an oven glove needs a heat insulator. (a) False (b) True
  33. 33.🔍 Which is the odd one out? (a) steel (b) cotton cloth (c) brass (d) iron
  34. 34.🧱 Is graphite an electrical conductor or an insulator? (a) a conductor (b) an insulator
  35. 35.🧱 Which property matters most for a water tank? (a) waterproof (b) heat insulator (c) transparent (d) flexible
  36. 36.True or false: a raincoat needs a waterproof material. (a) False (b) True
  37. 37.🧱 Which property matters most for a window pane? (a) flexible (b) transparent (c) electrical conductor (d) waterproof
  38. 38.🧱 Which property matters most for a boat hull? (a) transparent (b) heat insulator (c) waterproof (d) electrical conductor
  39. 39.🔍 Which is the odd one out? (a) iron (b) glass (c) graphite (d) brass
  40. 40.True or false: a skipping rope needs a flexible material. (a) False (b) True

Answer key

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

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