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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 274 · 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 the bars inside concrete? (a) rubber (b) plastic (c) glass (d) steel
  2. 2.🧱 Is cotton cloth an electrical conductor or an insulator? (a) an insulator (b) a conductor
  3. 3.Which of these needs a waterproof material? (a) a roof sheet (b) a yoga mat (c) a skipping rope (d) a car windscreen
  4. 4.🧱 Which property matters most for a switch contact? (a) electrical conductor (b) transparent (c) waterproof (d) heat insulator
  5. 5.Which of these needs an electrical conductor? (a) a yoga mat (b) a raincoat (c) a roof sheet (d) a plug pin
  6. 6.🧱 Which material is best for a raincoat? (a) plastic-coated cloth (b) cotton wool (c) paper (d) cardboard
  7. 7.Which of these needs a flexible material? (a) a water tank (b) a yoga mat (c) a car windscreen (d) a tea flask lining
  8. 8.🧱 Which property matters most for a window pane? (a) waterproof (b) flexible (c) transparent (d) electrical conductor
  9. 9.True or false: a hair band needs a flexible material. (a) True (b) False
  10. 10.🧱 Is dry wood an electrical conductor or an insulator? (a) a conductor (b) an insulator
  11. 11.🔍 Which is the odd one out? (a) cotton cloth (b) rubber (c) plastic (d) graphite
  12. 12.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  13. 13.🧱 Which property matters most for a skipping rope? (a) waterproof (b) flexible (c) transparent (d) electrical conductor
  14. 14.True or false: an umbrella cover needs a transparent material. (a) True (b) False
  15. 15.🧱 Is plastic an electrical conductor or an insulator? (a) an insulator (b) a conductor
  16. 16.🧱 Which material is best for a cooking pot handle? (a) aluminium (b) wood or plastic (c) iron (d) copper
  17. 17.🧱 Which material is best for the core of an electric wire? (a) rubber (b) glass (c) copper (d) wood
  18. 18.True or false: a roof sheet needs a waterproof material. (a) False (b) True
  19. 19.🧱 Which property matters most for a roof sheet? (a) transparent (b) waterproof (c) flexible (d) electrical conductor
  20. 20.Which of these needs a transparent material? (a) a window pane (b) the core of a wire (c) an oven glove (d) a water tank
  21. 21.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
  22. 22.🧱 Which property matters most for an umbrella cover? (a) heat insulator (b) electrical conductor (c) waterproof (d) transparent
  23. 23.🧱 Which property matters most for a spectacle lens? (a) flexible (b) electrical conductor (c) heat insulator (d) transparent
  24. 24.🧱 Which property matters most for a cooking pot handle? (a) heat insulator (b) electrical conductor (c) flexible (d) waterproof
  25. 25.🧱 Which material is best for a window pane? (a) steel (b) glass (c) wood (d) brick
  26. 26.True or false: a car windscreen needs a waterproof material. (a) False (b) True
  27. 27.🧱 Is graphite an electrical conductor or an insulator? (a) an insulator (b) a conductor
  28. 28.🔍 Which is the odd one out? (a) iron (b) copper (c) aluminium (d) rubber
  29. 29.Which of these needs a heat insulator? (a) a car seat belt (b) a tea flask lining (c) a water tank (d) a magnifier lens
  30. 30.🔍 Which is the odd one out? (a) graphite (b) iron (c) plastic (d) brass
  31. 31.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  32. 32.🧱 Which property matters most for a water tank? (a) heat insulator (b) electrical conductor (c) flexible (d) waterproof
  33. 33.🔍 Which is the odd one out? (a) rubber (b) steel (c) dry wood (d) glass
  34. 34.True or false: a skipping rope needs a flexible material. (a) False (b) True
  35. 35.True or false: a window pane needs a transparent material. (a) True (b) False
  36. 36.Which of these needs a flexible material? (a) the core of a wire (b) a tea flask lining (c) a water tank (d) a skipping rope
  37. 37.True or false: a spectacle lens needs a waterproof material. (a) True (b) False
  38. 38.🧱 Which property matters most for a boat hull? (a) flexible (b) transparent (c) waterproof (d) heat insulator
  39. 39.🔍 Which is the odd one out? (a) iron (b) copper (c) clay pottery (d) aluminium
  40. 40.True or false: a car windscreen needs a flexible material. (a) False (b) True

Answer key

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

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