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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 306 · 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: a hair band needs a heat insulator. (a) True (b) False
  2. 2.True or false: a skipping rope needs a flexible material. (a) False (b) True
  3. 3.🔍 Which is the odd one out? (a) rubber (b) cotton cloth (c) dry wood (d) steel
  4. 4.🧱 Which property matters most for a cooking pot handle? (a) electrical conductor (b) flexible (c) waterproof (d) heat insulator
  5. 5.Which of these needs a transparent material? (a) a water tank (b) a roof sheet (c) a spectacle lens (d) a car seat belt
  6. 6.🧱 Which property matters most for the core of a wire? (a) heat insulator (b) flexible (c) transparent (d) electrical conductor
  7. 7.🧱 Is copper an electrical conductor or an insulator? (a) a conductor (b) an insulator
  8. 8.Which of these needs an electrical conductor? (a) a switch contact (b) a raincoat (c) a cooking pot handle (d) a tea flask lining
  9. 9.🔍 Which is the odd one out? (a) iron (b) rubber (c) steel (d) aluminium
  10. 10.True or false: a plug pin needs an electrical conductor. (a) False (b) True
  11. 11.Which of these needs a waterproof material? (a) a yoga mat (b) a switch contact (c) a water tank (d) a plug pin
  12. 12.🧱 Which material is best for a raincoat? (a) plastic-coated cloth (b) cotton wool (c) paper (d) cardboard
  13. 13.🧱 Is plastic an electrical conductor or an insulator? (a) an insulator (b) a conductor
  14. 14.🧱 Is iron an electrical conductor or an insulator? (a) a conductor (b) an insulator
  15. 15.Which of these needs a heat insulator? (a) a roof sheet (b) a tea flask lining (c) a car windscreen (d) a raincoat
  16. 16.🔍 Which is the odd one out? (a) copper (b) glass (c) graphite (d) aluminium
  17. 17.🧱 Which property matters most for a yoga mat? (a) waterproof (b) transparent (c) heat insulator (d) flexible
  18. 18.🧱 Which material is best for the core of an electric wire? (a) glass (b) copper (c) rubber (d) wood
  19. 19.Which of these needs a waterproof material? (a) a car windscreen (b) a magnifier lens (c) a raincoat (d) a car seat belt
  20. 20.🧱 Is brass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  21. 21.Which of these needs an electrical conductor? (a) an umbrella cover (b) a raincoat (c) a magnifier lens (d) the core of a wire
  22. 22.Which of these needs a transparent material? (a) a water tank (b) a plug pin (c) a cooking pot handle (d) a window pane
  23. 23.Which of these needs an electrical conductor? (a) a magnifier lens (b) a yoga mat (c) a plug pin (d) an oven glove
  24. 24.Which of these needs a flexible material? (a) a plug pin (b) a switch contact (c) a hair band (d) a raincoat
  25. 25.🧱 Is dry wood an electrical conductor or an insulator? (a) an insulator (b) a conductor
  26. 26.🧱 Which material is best for a window pane? (a) steel (b) brick (c) wood (d) glass
  27. 27.True or false: a magnifier lens needs a transparent material. (a) False (b) True
  28. 28.Which of these needs a transparent material? (a) the core of a wire (b) a tea flask lining (c) a car windscreen (d) an oven glove
  29. 29.🧱 Which material is best for the bars inside concrete? (a) plastic (b) steel (c) glass (d) rubber
  30. 30.True or false: an oven glove needs a flexible material. (a) True (b) False
  31. 31.🧱 Which property matters most for a tea flask lining? (a) flexible (b) heat insulator (c) electrical conductor (d) transparent
  32. 32.True or false: the core of a wire needs a heat insulator. (a) True (b) False
  33. 33.🧱 Which property matters most for a raincoat? (a) transparent (b) flexible (c) heat insulator (d) waterproof
  34. 34.True or false: a hair band needs a flexible material. (a) False (b) True
  35. 35.Which of these needs a flexible material? (a) a skipping rope (b) a tea flask lining (c) an umbrella cover (d) a cooking pot handle
  36. 36.🔍 Which is the odd one out? (a) copper (b) aluminium (c) steel (d) dry wood
  37. 37.🧱 Which property matters most for a boat hull? (a) transparent (b) electrical conductor (c) waterproof (d) flexible
  38. 38.🧱 Is graphite an electrical conductor or an insulator? (a) a conductor (b) an insulator
  39. 39.True or false: a roof sheet needs a waterproof material. (a) False (b) True
  40. 40.🧱 Which property matters most for a water tank? (a) waterproof (b) heat insulator (c) flexible (d) electrical conductor

Answer key

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

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