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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 162 · 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) dry wood (b) copper (c) steel (d) brass
  2. 2.True or false: a boat hull needs a waterproof material. (a) True (b) False
  3. 3.Which of these needs a transparent material? (a) a raincoat (b) the core of a wire (c) a tea flask lining (d) a spectacle lens
  4. 4.🔍 Which is the odd one out? (a) steel (b) dry wood (c) rubber (d) clay pottery
  5. 5.Which of these needs a transparent material? (a) a water tank (b) a raincoat (c) a window pane (d) a roof sheet
  6. 6.🧱 Which material is best for the core of an electric wire? (a) wood (b) rubber (c) copper (d) glass
  7. 7.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
  8. 8.🧱 Which material is best for the bars inside concrete? (a) plastic (b) steel (c) glass (d) rubber
  9. 9.🧱 Which property matters most for a cooking pot handle? (a) flexible (b) waterproof (c) heat insulator (d) transparent
  10. 10.Which of these needs a flexible material? (a) a skipping rope (b) a car windscreen (c) a boat hull (d) a raincoat
  11. 11.🧱 Which property matters most for a boat hull? (a) heat insulator (b) waterproof (c) flexible (d) electrical conductor
  12. 12.🧱 Which material is best for a cooking pot handle? (a) copper (b) aluminium (c) iron (d) wood or plastic
  13. 13.🔍 Which is the odd one out? (a) dry wood (b) plastic (c) graphite (d) clay pottery
  14. 14.🧱 Which property matters most for a car seat belt? (a) flexible (b) heat insulator (c) electrical conductor (d) waterproof
  15. 15.🧱 Which property matters most for a spectacle lens? (a) heat insulator (b) flexible (c) electrical conductor (d) transparent
  16. 16.True or false: a tea flask lining needs a flexible material. (a) False (b) True
  17. 17.Which of these needs a flexible material? (a) a magnifier lens (b) a switch contact (c) a car seat belt (d) an umbrella cover
  18. 18.True or false: a window pane needs a waterproof material. (a) False (b) True
  19. 19.Which of these needs a waterproof material? (a) a skipping rope (b) a car windscreen (c) a switch contact (d) a raincoat
  20. 20.Which of these needs a waterproof material? (a) an oven glove (b) a spectacle lens (c) a water tank (d) a switch contact
  21. 21.🔍 Which is the odd one out? (a) aluminium (b) plastic (c) clay pottery (d) glass
  22. 22.True or false: an umbrella cover needs a heat insulator. (a) True (b) False
  23. 23.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
  24. 24.🔍 Which is the odd one out? (a) copper (b) brass (c) graphite (d) plastic
  25. 25.🧱 Which property matters most for a roof sheet? (a) flexible (b) transparent (c) waterproof (d) heat insulator
  26. 26.🧱 Which material is best for a raincoat? (a) paper (b) cotton wool (c) cardboard (d) plastic-coated cloth
  27. 27.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  28. 28.🧱 Is cotton cloth an electrical conductor or an insulator? (a) a conductor (b) an insulator
  29. 29.🔍 Which is the odd one out? (a) plastic (b) brass (c) rubber (d) clay pottery
  30. 30.🧱 Which property matters most for a plug pin? (a) transparent (b) flexible (c) waterproof (d) electrical conductor
  31. 31.🔍 Which is the odd one out? (a) steel (b) iron (c) copper (d) rubber
  32. 32.🔍 Which is the odd one out? (a) dry wood (b) clay pottery (c) plastic (d) copper
  33. 33.Which of these needs an electrical conductor? (a) a water tank (b) a tea flask lining (c) the core of a wire (d) a roof sheet
  34. 34.🧱 Which material is best for a window pane? (a) steel (b) brick (c) wood (d) glass
  35. 35.True or false: a raincoat needs a waterproof material. (a) False (b) True
  36. 36.🧱 Which property matters most for a magnifier lens? (a) electrical conductor (b) flexible (c) transparent (d) heat insulator
  37. 37.True or false: an oven glove needs a heat insulator. (a) True (b) False
  38. 38.🧱 Which property matters most for the core of a wire? (a) electrical conductor (b) heat insulator (c) transparent (d) flexible
  39. 39.True or false: a yoga mat needs a flexible material. (a) False (b) True
  40. 40.🧱 Is brass an electrical conductor or an insulator? (a) an insulator (b) a conductor

Answer key

  1. dry wood
  2. True
  3. a spectacle lens
  4. steel
  5. a window pane
  6. copper
  7. an insulator
  8. steel
  9. heat insulator
  10. a skipping rope
  11. waterproof
  12. wood or plastic
  13. graphite
  14. flexible
  15. transparent
  16. False
  17. a car seat belt
  18. False
  19. a raincoat
  20. a water tank
  21. aluminium
  22. False
  23. a conductor
  24. plastic
  25. waterproof
  26. plastic-coated cloth
  27. a conductor
  28. an insulator
  29. brass
  30. electrical conductor
  31. rubber
  32. copper
  33. the core of a wire
  34. glass
  35. True
  36. transparent
  37. True
  38. electrical conductor
  39. True
  40. a conductor

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