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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 300 · 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 raincoat needs a waterproof material. (a) True (b) False
  2. 2.🧱 Which material is best for a raincoat? (a) cardboard (b) paper (c) plastic-coated cloth (d) cotton wool
  3. 3.🧱 Which property matters most for a tea flask lining? (a) transparent (b) waterproof (c) heat insulator (d) electrical conductor
  4. 4.Which of these needs a heat insulator? (a) a yoga mat (b) a hair band (c) a water tank (d) a cooking pot handle
  5. 5.🧱 Is cotton cloth an electrical conductor or an insulator? (a) an insulator (b) a conductor
  6. 6.🔍 Which is the odd one out? (a) copper (b) rubber (c) iron (d) aluminium
  7. 7.🧱 Is aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
  8. 8.🔍 Which is the odd one out? (a) dry wood (b) clay pottery (c) steel (d) cotton cloth
  9. 9.Which of these needs a heat insulator? (a) an oven glove (b) a roof sheet (c) an umbrella cover (d) a water tank
  10. 10.🔍 Which is the odd one out? (a) dry wood (b) glass (c) plastic (d) graphite
  11. 11.🧱 Which property matters most for the core of a wire? (a) transparent (b) heat insulator (c) electrical conductor (d) flexible
  12. 12.Which of these needs a heat insulator? (a) a car seat belt (b) a tea flask lining (c) the core of a wire (d) a car windscreen
  13. 13.🧱 Which material is best for a window pane? (a) steel (b) wood (c) glass (d) brick
  14. 14.Which of these needs a waterproof material? (a) a magnifier lens (b) a roof sheet (c) the core of a wire (d) a switch contact
  15. 15.True or false: a spectacle lens needs a flexible material. (a) True (b) False
  16. 16.🧱 Is graphite an electrical conductor or an insulator? (a) an insulator (b) a conductor
  17. 17.🧱 Which material is best for the bars inside concrete? (a) glass (b) plastic (c) rubber (d) steel
  18. 18.True or false: an oven glove needs a flexible material. (a) True (b) False
  19. 19.Which of these needs an electrical conductor? (a) a magnifier lens (b) a plug pin (c) a spectacle lens (d) a window pane
  20. 20.🔍 Which is the odd one out? (a) glass (b) graphite (c) copper (d) iron
  21. 21.🧱 Which property matters most for a boat hull? (a) waterproof (b) electrical conductor (c) heat insulator (d) flexible
  22. 22.🧱 Is glass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  23. 23.🧱 Which material is best for a cooking pot handle? (a) copper (b) iron (c) aluminium (d) wood or plastic
  24. 24.🧱 Which property matters most for a magnifier lens? (a) transparent (b) waterproof (c) electrical conductor (d) flexible
  25. 25.Which of these needs a transparent material? (a) a window pane (b) a yoga mat (c) a car seat belt (d) a skipping rope
  26. 26.🔍 Which is the odd one out? (a) dry wood (b) steel (c) graphite (d) aluminium
  27. 27.🔍 Which is the odd one out? (a) glass (b) plastic (c) clay pottery (d) aluminium
  28. 28.🧱 Is plastic an electrical conductor or an insulator? (a) an insulator (b) a conductor
  29. 29.True or false: a skipping rope needs a waterproof material. (a) True (b) False
  30. 30.🧱 Which property matters most for a car seat belt? (a) electrical conductor (b) heat insulator (c) flexible (d) transparent
  31. 31.🧱 Which property matters most for a water tank? (a) electrical conductor (b) heat insulator (c) flexible (d) waterproof
  32. 32.🧱 Which property matters most for a plug pin? (a) heat insulator (b) transparent (c) waterproof (d) electrical conductor
  33. 33.🧱 Is iron an electrical conductor or an insulator? (a) a conductor (b) an insulator
  34. 34.True or false: the core of a wire needs an electrical conductor. (a) False (b) True
  35. 35.Which of these needs an electrical conductor? (a) a switch contact (b) a window pane (c) a hair band (d) an umbrella cover
  36. 36.🧱 Is rubber an electrical conductor or an insulator? (a) a conductor (b) an insulator
  37. 37.True or false: a plug pin needs a waterproof material. (a) True (b) False
  38. 38.🔍 Which is the odd one out? (a) graphite (b) clay pottery (c) copper (d) aluminium
  39. 39.True or false: a magnifier lens needs a transparent material. (a) True (b) False
  40. 40.🧱 Which property matters most for a cooking pot handle? (a) heat insulator (b) waterproof (c) transparent (d) flexible

Answer key

  1. True
  2. plastic-coated cloth
  3. heat insulator
  4. a cooking pot handle
  5. an insulator
  6. rubber
  7. a conductor
  8. steel
  9. an oven glove
  10. graphite
  11. electrical conductor
  12. a tea flask lining
  13. glass
  14. a roof sheet
  15. False
  16. a conductor
  17. steel
  18. False
  19. a plug pin
  20. glass
  21. waterproof
  22. an insulator
  23. wood or plastic
  24. transparent
  25. a window pane
  26. dry wood
  27. aluminium
  28. an insulator
  29. False
  30. flexible
  31. waterproof
  32. electrical conductor
  33. a conductor
  34. True
  35. a switch contact
  36. an insulator
  37. False
  38. clay pottery
  39. True
  40. heat insulator

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