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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 132 · 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.🧱 Is rubber an electrical conductor or an insulator? (a) a conductor (b) an insulator
  2. 2.True or false: a spectacle lens needs a transparent material. (a) True (b) False
  3. 3.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
  4. 4.🔍 Which is the odd one out? (a) rubber (b) plastic (c) iron (d) dry wood
  5. 5.🔍 Which is the odd one out? (a) glass (b) copper (c) clay pottery (d) cotton cloth
  6. 6.Which of these needs a waterproof material? (a) a cooking pot handle (b) a car windscreen (c) a water tank (d) a skipping rope
  7. 7.🧱 Is dry wood an electrical conductor or an insulator? (a) a conductor (b) an insulator
  8. 8.True or false: a plug pin needs a waterproof material. (a) False (b) True
  9. 9.Which of these needs a waterproof material? (a) a hair band (b) a skipping rope (c) a raincoat (d) a plug pin
  10. 10.Which of these needs a heat insulator? (a) an umbrella cover (b) the core of a wire (c) a water tank (d) an oven glove
  11. 11.🔍 Which is the odd one out? (a) brass (b) clay pottery (c) copper (d) graphite
  12. 12.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  13. 13.🧱 Which property matters most for a boat hull? (a) transparent (b) heat insulator (c) waterproof (d) electrical conductor
  14. 14.🧱 Which material is best for a raincoat? (a) paper (b) cotton wool (c) cardboard (d) plastic-coated cloth
  15. 15.🧱 Which material is best for the bars inside concrete? (a) glass (b) steel (c) rubber (d) plastic
  16. 16.🔍 Which is the odd one out? (a) steel (b) glass (c) rubber (d) plastic
  17. 17.🔍 Which is the odd one out? (a) copper (b) graphite (c) cotton cloth (d) brass
  18. 18.🧱 Is graphite an electrical conductor or an insulator? (a) an insulator (b) a conductor
  19. 19.🧱 Which material is best for the core of an electric wire? (a) copper (b) wood (c) glass (d) rubber
  20. 20.True or false: a car seat belt needs a transparent material. (a) True (b) False
  21. 21.🧱 Which property matters most for an umbrella cover? (a) transparent (b) electrical conductor (c) flexible (d) waterproof
  22. 22.Which of these needs a flexible material? (a) a roof sheet (b) a window pane (c) an oven glove (d) a yoga mat
  23. 23.🧱 Is brass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  24. 24.🔍 Which is the odd one out? (a) aluminium (b) clay pottery (c) dry wood (d) plastic
  25. 25.Which of these needs a waterproof material? (a) a tea flask lining (b) a skipping rope (c) a roof sheet (d) a window pane
  26. 26.Which of these needs a transparent material? (a) an umbrella cover (b) a cooking pot handle (c) a plug pin (d) a spectacle lens
  27. 27.🧱 Is steel an electrical conductor or an insulator? (a) a conductor (b) an insulator
  28. 28.🧱 Which property matters most for a skipping rope? (a) waterproof (b) transparent (c) electrical conductor (d) flexible
  29. 29.🧱 Which property matters most for a cooking pot handle? (a) flexible (b) heat insulator (c) waterproof (d) transparent
  30. 30.Which of these needs a transparent material? (a) a boat hull (b) a window pane (c) a tea flask lining (d) a skipping rope
  31. 31.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  32. 32.🔍 Which is the odd one out? (a) rubber (b) iron (c) copper (d) brass
  33. 33.True or false: a raincoat needs a transparent material. (a) True (b) False
  34. 34.Which of these needs a transparent material? (a) a boat hull (b) a tea flask lining (c) an umbrella cover (d) a magnifier lens
  35. 35.🧱 Which material is best for a window pane? (a) wood (b) brick (c) steel (d) glass
  36. 36.🔍 Which is the odd one out? (a) iron (b) aluminium (c) dry wood (d) copper
  37. 37.Which of these needs a waterproof material? (a) a window pane (b) a hair band (c) a tea flask lining (d) an umbrella cover
  38. 38.🧱 Which property matters most for a car windscreen? (a) flexible (b) heat insulator (c) transparent (d) waterproof
  39. 39.Which of these needs a waterproof material? (a) a cooking pot handle (b) a boat hull (c) a skipping rope (d) a switch contact
  40. 40.🔍 Which is the odd one out? (a) plastic (b) graphite (c) glass (d) clay pottery

Answer key

  1. an insulator
  2. True
  3. an insulator
  4. iron
  5. copper
  6. a water tank
  7. an insulator
  8. False
  9. a raincoat
  10. an oven glove
  11. clay pottery
  12. a conductor
  13. waterproof
  14. plastic-coated cloth
  15. steel
  16. steel
  17. cotton cloth
  18. a conductor
  19. copper
  20. False
  21. waterproof
  22. a yoga mat
  23. a conductor
  24. aluminium
  25. a roof sheet
  26. a spectacle lens
  27. a conductor
  28. flexible
  29. heat insulator
  30. a window pane
  31. a conductor
  32. rubber
  33. False
  34. a magnifier lens
  35. glass
  36. dry wood
  37. an umbrella cover
  38. transparent
  39. a boat hull
  40. graphite

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