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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 410 · 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.True or false: an oven glove needs a heat insulator. (a) False (b) True
  2. 2.🧱 Which material is best for a window pane? (a) glass (b) steel (c) wood (d) brick
  3. 3.🔍 Which is the odd one out? (a) plastic (b) dry wood (c) glass (d) graphite
  4. 4.Which of these needs a waterproof material? (a) an umbrella cover (b) a switch contact (c) a tea flask lining (d) a hair band
  5. 5.🧱 Which property matters most for a magnifier lens? (a) waterproof (b) heat insulator (c) transparent (d) electrical conductor
  6. 6.🧱 Which material is best for the bars inside concrete? (a) rubber (b) glass (c) plastic (d) steel
  7. 7.True or false: the core of a wire needs an electrical conductor. (a) False (b) True
  8. 8.Which of these needs a waterproof material? (a) a magnifier lens (b) a spectacle lens (c) a roof sheet (d) a cooking pot handle
  9. 9.True or false: a magnifier lens needs a transparent material. (a) True (b) False
  10. 10.🧱 Which property matters most for a yoga mat? (a) waterproof (b) flexible (c) electrical conductor (d) heat insulator
  11. 11.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
  12. 12.Which of these needs a transparent material? (a) a window pane (b) an umbrella cover (c) a skipping rope (d) a boat hull
  13. 13.Which of these needs a transparent material? (a) a switch contact (b) a car windscreen (c) the core of a wire (d) an oven glove
  14. 14.True or false: an umbrella cover needs a waterproof material. (a) False (b) True
  15. 15.Which of these needs a flexible material? (a) a car seat belt (b) a plug pin (c) a cooking pot handle (d) a raincoat
  16. 16.True or false: a roof sheet needs a flexible material. (a) True (b) False
  17. 17.True or false: a tea flask lining needs a transparent material. (a) False (b) True
  18. 18.Which of these needs a transparent material? (a) a roof sheet (b) a water tank (c) a spectacle lens (d) a tea flask lining
  19. 19.🧱 Which material is best for a cooking pot handle? (a) copper (b) wood or plastic (c) iron (d) aluminium
  20. 20.🧱 Is graphite an electrical conductor or an insulator? (a) an insulator (b) a conductor
  21. 21.🧱 Which property matters most for a water tank? (a) electrical conductor (b) flexible (c) transparent (d) waterproof
  22. 22.🔍 Which is the odd one out? (a) rubber (b) glass (c) copper (d) plastic
  23. 23.🧱 Is rubber an electrical conductor or an insulator? (a) an insulator (b) a conductor
  24. 24.True or false: a switch contact needs a transparent material. (a) False (b) True
  25. 25.🧱 Which property matters most for a cooking pot handle? (a) waterproof (b) flexible (c) heat insulator (d) transparent
  26. 26.🧱 Is glass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  27. 27.🔍 Which is the odd one out? (a) dry wood (b) glass (c) iron (d) rubber
  28. 28.🔍 Which is the odd one out? (a) glass (b) copper (c) steel (d) iron
  29. 29.🧱 Which property matters most for a raincoat? (a) flexible (b) transparent (c) electrical conductor (d) waterproof
  30. 30.🔍 Which is the odd one out? (a) glass (b) cotton cloth (c) dry wood (d) brass
  31. 31.True or false: a hair band needs a flexible material. (a) False (b) True
  32. 32.True or false: a roof sheet needs a transparent material. (a) True (b) False
  33. 33.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  34. 34.🔍 Which is the odd one out? (a) aluminium (b) dry wood (c) iron (d) copper
  35. 35.Which of these needs an electrical conductor? (a) a raincoat (b) a roof sheet (c) a plug pin (d) a magnifier lens
  36. 36.🧱 Is dry wood an electrical conductor or an insulator? (a) a conductor (b) an insulator
  37. 37.🧱 Which material is best for a raincoat? (a) plastic-coated cloth (b) paper (c) cotton wool (d) cardboard
  38. 38.Which of these needs a flexible material? (a) a tea flask lining (b) a hair band (c) a water tank (d) a plug pin
  39. 39.🧱 Which material is best for the core of an electric wire? (a) rubber (b) copper (c) glass (d) wood
  40. 40.🧱 Is brass an electrical conductor or an insulator? (a) a conductor (b) an insulator

Answer key

  1. True
  2. glass
  3. graphite
  4. an umbrella cover
  5. transparent
  6. steel
  7. True
  8. a roof sheet
  9. True
  10. flexible
  11. an insulator
  12. a window pane
  13. a car windscreen
  14. True
  15. a car seat belt
  16. False
  17. False
  18. a spectacle lens
  19. wood or plastic
  20. a conductor
  21. waterproof
  22. copper
  23. an insulator
  24. False
  25. heat insulator
  26. an insulator
  27. iron
  28. glass
  29. waterproof
  30. brass
  31. True
  32. False
  33. a conductor
  34. dry wood
  35. a plug pin
  36. an insulator
  37. plastic-coated cloth
  38. a hair band
  39. copper
  40. a conductor

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