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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 698 · 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 property matters most for the core of a wire? (a) transparent (b) electrical conductor (c) waterproof (d) heat insulator
  2. 2.🧱 Which property matters most for a tea flask lining? (a) waterproof (b) transparent (c) electrical conductor (d) heat insulator
  3. 3.🔍 Which is the odd one out? (a) glass (b) graphite (c) aluminium (d) iron
  4. 4.🔍 Which is the odd one out? (a) plastic (b) glass (c) dry wood (d) brass
  5. 5.True or false: an umbrella cover needs a waterproof material. (a) True (b) False
  6. 6.🧱 Is aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
  7. 7.Which of these needs an electrical conductor? (a) a water tank (b) a plug pin (c) a roof sheet (d) a yoga mat
  8. 8.🧱 Is rubber an electrical conductor or an insulator? (a) a conductor (b) an insulator
  9. 9.Which of these needs a flexible material? (a) a water tank (b) a plug pin (c) a car windscreen (d) a car seat belt
  10. 10.Which of these needs a transparent material? (a) a boat hull (b) the core of a wire (c) a yoga mat (d) a car windscreen
  11. 11.🔍 Which is the odd one out? (a) cotton cloth (b) dry wood (c) iron (d) clay pottery
  12. 12.🧱 Which property matters most for a car seat belt? (a) heat insulator (b) waterproof (c) transparent (d) flexible
  13. 13.🔍 Which is the odd one out? (a) aluminium (b) cotton cloth (c) rubber (d) dry wood
  14. 14.🧱 Is glass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  15. 15.Which of these needs an electrical conductor? (a) a tea flask lining (b) a boat hull (c) the core of a wire (d) a skipping rope
  16. 16.🧱 Which material is best for the core of an electric wire? (a) glass (b) wood (c) copper (d) rubber
  17. 17.Which of these needs an electrical conductor? (a) a switch contact (b) a roof sheet (c) a car windscreen (d) an umbrella cover
  18. 18.True or false: an oven glove needs a heat insulator. (a) True (b) False
  19. 19.🧱 Which material is best for a raincoat? (a) paper (b) cotton wool (c) plastic-coated cloth (d) cardboard
  20. 20.🧱 Which property matters most for a plug pin? (a) flexible (b) heat insulator (c) waterproof (d) electrical conductor
  21. 21.🔍 Which is the odd one out? (a) copper (b) steel (c) rubber (d) aluminium
  22. 22.🧱 Is iron an electrical conductor or an insulator? (a) a conductor (b) an insulator
  23. 23.Which of these needs a flexible material? (a) a hair band (b) a cooking pot handle (c) a window pane (d) a plug pin
  24. 24.True or false: a spectacle lens needs a transparent material. (a) True (b) False
  25. 25.Which of these needs a waterproof material? (a) a boat hull (b) a plug pin (c) a hair band (d) a tea flask lining
  26. 26.Which of these needs a waterproof material? (a) a car seat belt (b) a raincoat (c) the core of a wire (d) a yoga mat
  27. 27.🧱 Is brass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  28. 28.True or false: a window pane needs a transparent material. (a) True (b) False
  29. 29.Which of these needs a flexible material? (a) a spectacle lens (b) a window pane (c) a skipping rope (d) a boat hull
  30. 30.🧱 Which property matters most for a roof sheet? (a) electrical conductor (b) waterproof (c) transparent (d) flexible
  31. 31.🧱 Which material is best for the bars inside concrete? (a) steel (b) rubber (c) plastic (d) glass
  32. 32.🔍 Which is the odd one out? (a) glass (b) copper (c) dry wood (d) rubber
  33. 33.🧱 Is dry wood an electrical conductor or an insulator? (a) a conductor (b) an insulator
  34. 34.🔍 Which is the odd one out? (a) steel (b) graphite (c) iron (d) cotton cloth
  35. 35.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
  36. 36.True or false: a roof sheet needs a waterproof material. (a) True (b) False
  37. 37.🧱 Which material is best for a window pane? (a) steel (b) brick (c) wood (d) glass
  38. 38.🧱 Which property matters most for a water tank? (a) transparent (b) electrical conductor (c) heat insulator (d) waterproof
  39. 39.True or false: a water tank needs a heat insulator. (a) False (b) True
  40. 40.🔍 Which is the odd one out? (a) iron (b) steel (c) copper (d) plastic

Answer key

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

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