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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 895 · 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 is the odd one out? (a) plastic (b) dry wood (c) cotton cloth (d) graphite
  2. 2.🔍 Which is the odd one out? (a) iron (b) steel (c) plastic (d) aluminium
  3. 3.🧱 Which material is best for a cooking pot handle? (a) aluminium (b) copper (c) iron (d) wood or plastic
  4. 4.Which of these needs a transparent material? (a) a car windscreen (b) a cooking pot handle (c) a switch contact (d) a skipping rope
  5. 5.🧱 Is graphite 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) wood (b) copper (c) rubber (d) glass
  7. 7.🧱 Which material is best for the bars inside concrete? (a) steel (b) rubber (c) glass (d) plastic
  8. 8.True or false: a roof sheet needs a transparent material. (a) False (b) True
  9. 9.🔍 Which is the odd one out? (a) plastic (b) copper (c) dry wood (d) rubber
  10. 10.🔍 Which is the odd one out? (a) cotton cloth (b) rubber (c) dry wood (d) iron
  11. 11.🧱 Which material is best for a window pane? (a) glass (b) steel (c) brick (d) wood
  12. 12.🔍 Which is the odd one out? (a) steel (b) clay pottery (c) dry wood (d) cotton cloth
  13. 13.🧱 Is copper an electrical conductor or an insulator? (a) a conductor (b) an insulator
  14. 14.True or false: a skipping rope needs a waterproof material. (a) True (b) False
  15. 15.🧱 Which property matters most for an oven glove? (a) transparent (b) heat insulator (c) waterproof (d) electrical conductor
  16. 16.Which of these needs an electrical conductor? (a) a yoga mat (b) a car windscreen (c) the core of a wire (d) a water tank
  17. 17.🧱 Which property matters most for a switch contact? (a) heat insulator (b) electrical conductor (c) waterproof (d) flexible
  18. 18.🧱 Which material is best for a raincoat? (a) paper (b) cotton wool (c) plastic-coated cloth (d) cardboard
  19. 19.🧱 Is clay pottery an electrical conductor or an insulator? (a) an insulator (b) a conductor
  20. 20.Which of these needs an electrical conductor? (a) a water tank (b) a spectacle lens (c) a window pane (d) a plug pin
  21. 21.True or false: a plug pin needs a flexible material. (a) False (b) True
  22. 22.Which of these needs a heat insulator? (a) a skipping rope (b) a spectacle lens (c) a tea flask lining (d) a roof sheet
  23. 23.True or false: a window pane needs a waterproof material. (a) True (b) False
  24. 24.🧱 Is plastic an electrical conductor or an insulator? (a) an insulator (b) a conductor
  25. 25.True or false: a car seat belt needs an electrical conductor. (a) True (b) False
  26. 26.🧱 Is glass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  27. 27.🧱 Which property matters most for a plug pin? (a) flexible (b) electrical conductor (c) heat insulator (d) waterproof
  28. 28.Which of these needs a waterproof material? (a) a tea flask lining (b) a hair band (c) the core of a wire (d) a roof sheet
  29. 29.Which of these needs a flexible material? (a) a spectacle lens (b) a boat hull (c) a hair band (d) a tea flask lining
  30. 30.🧱 Which property matters most for an umbrella cover? (a) electrical conductor (b) flexible (c) waterproof (d) heat insulator
  31. 31.🔍 Which is the odd one out? (a) clay pottery (b) steel (c) graphite (d) copper
  32. 32.🧱 Which property matters most for a roof sheet? (a) heat insulator (b) waterproof (c) flexible (d) electrical conductor
  33. 33.True or false: an umbrella cover needs an electrical conductor. (a) False (b) True
  34. 34.🧱 Which property matters most for a water tank? (a) waterproof (b) transparent (c) electrical conductor (d) flexible
  35. 35.Which of these needs a flexible material? (a) an oven glove (b) a raincoat (c) a car seat belt (d) a boat hull
  36. 36.Which of these needs a flexible material? (a) a skipping rope (b) a tea flask lining (c) a plug pin (d) an umbrella cover
  37. 37.True or false: the core of a wire needs an electrical conductor. (a) False (b) True
  38. 38.🧱 Is brass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  39. 39.🧱 Is cotton cloth an electrical conductor or an insulator? (a) an insulator (b) a conductor
  40. 40.True or false: a magnifier lens needs a transparent material. (a) False (b) True

Answer key

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

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