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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 630 · 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 magnifier lens needs a heat insulator. (a) False (b) True
  2. 2.🧱 Which property matters most for an umbrella cover? (a) flexible (b) waterproof (c) electrical conductor (d) heat insulator
  3. 3.🧱 Which property matters most for a yoga mat? (a) flexible (b) waterproof (c) electrical conductor (d) transparent
  4. 4.🧱 Is cotton cloth an electrical conductor or an insulator? (a) an insulator (b) a conductor
  5. 5.Which of these needs a waterproof material? (a) a car windscreen (b) a water tank (c) a yoga mat (d) the core of a wire
  6. 6.Which of these needs a flexible material? (a) a water tank (b) a raincoat (c) a skipping rope (d) a switch contact
  7. 7.🧱 Is rubber an electrical conductor or an insulator? (a) a conductor (b) an insulator
  8. 8.True or false: a raincoat needs a flexible material. (a) False (b) True
  9. 9.🔍 Which is the odd one out? (a) graphite (b) rubber (c) clay pottery (d) plastic
  10. 10.True or false: a roof sheet needs a waterproof material. (a) True (b) False
  11. 11.🧱 Which property matters most for a switch contact? (a) flexible (b) waterproof (c) transparent (d) electrical conductor
  12. 12.🧱 Is copper an electrical conductor or an insulator? (a) a conductor (b) an insulator
  13. 13.🧱 Which property matters most for a water tank? (a) waterproof (b) electrical conductor (c) transparent (d) flexible
  14. 14.🧱 Which property matters most for a cooking pot handle? (a) transparent (b) waterproof (c) heat insulator (d) flexible
  15. 15.Which of these needs a heat insulator? (a) a roof sheet (b) the core of a wire (c) a tea flask lining (d) a window pane
  16. 16.🔍 Which is the odd one out? (a) aluminium (b) graphite (c) rubber (d) iron
  17. 17.🧱 Is plastic an electrical conductor or an insulator? (a) an insulator (b) a conductor
  18. 18.True or false: a raincoat needs a waterproof material. (a) True (b) False
  19. 19.🧱 Is clay pottery an electrical conductor or an insulator? (a) a conductor (b) an insulator
  20. 20.🧱 Which material is best for a cooking pot handle? (a) copper (b) iron (c) aluminium (d) wood or plastic
  21. 21.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  22. 22.Which of these needs a flexible material? (a) a boat hull (b) a roof sheet (c) a cooking pot handle (d) a yoga mat
  23. 23.🧱 Which property matters most for an oven glove? (a) waterproof (b) heat insulator (c) flexible (d) transparent
  24. 24.🧱 Which material is best for the bars inside concrete? (a) plastic (b) glass (c) rubber (d) steel
  25. 25.🔍 Which is the odd one out? (a) graphite (b) clay pottery (c) aluminium (d) steel
  26. 26.Which of these needs an electrical conductor? (a) a car windscreen (b) a window pane (c) a car seat belt (d) a plug pin
  27. 27.Which of these needs a heat insulator? (a) a window pane (b) an oven glove (c) a switch contact (d) a plug pin
  28. 28.🔍 Which is the odd one out? (a) aluminium (b) plastic (c) graphite (d) steel
  29. 29.🔍 Which is the odd one out? (a) dry wood (b) iron (c) aluminium (d) copper
  30. 30.Which of these needs a flexible material? (a) a magnifier lens (b) a raincoat (c) a plug pin (d) a car seat belt
  31. 31.🧱 Is brass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  32. 32.🔍 Which is the odd one out? (a) plastic (b) iron (c) cotton cloth (d) rubber
  33. 33.🧱 Which property matters most for a roof sheet? (a) electrical conductor (b) waterproof (c) transparent (d) flexible
  34. 34.🔍 Which is the odd one out? (a) glass (b) rubber (c) cotton cloth (d) copper
  35. 35.🧱 Which material is best for a window pane? (a) steel (b) wood (c) glass (d) brick
  36. 36.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
  37. 37.🧱 Which property matters most for a window pane? (a) heat insulator (b) electrical conductor (c) waterproof (d) transparent
  38. 38.Which of these needs a transparent material? (a) a window pane (b) the core of a wire (c) an umbrella cover (d) a hair band
  39. 39.True or false: a switch contact needs a waterproof material. (a) False (b) True
  40. 40.Which of these needs a transparent material? (a) a water tank (b) a magnifier lens (c) a plug pin (d) a boat hull

Answer key

  1. False
  2. waterproof
  3. flexible
  4. an insulator
  5. a water tank
  6. a skipping rope
  7. an insulator
  8. False
  9. graphite
  10. True
  11. electrical conductor
  12. a conductor
  13. waterproof
  14. heat insulator
  15. a tea flask lining
  16. rubber
  17. an insulator
  18. True
  19. an insulator
  20. wood or plastic
  21. a conductor
  22. a yoga mat
  23. heat insulator
  24. steel
  25. clay pottery
  26. a plug pin
  27. an oven glove
  28. plastic
  29. dry wood
  30. a car seat belt
  31. a conductor
  32. iron
  33. waterproof
  34. copper
  35. glass
  36. a conductor
  37. transparent
  38. a window pane
  39. False
  40. a magnifier lens

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