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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 691 · 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) glass (b) rubber (c) plastic (d) steel
  2. 2.🧱 Which property matters most for a car seat belt? (a) heat insulator (b) electrical conductor (c) transparent (d) flexible
  3. 3.🧱 Which material is best for the core of an electric wire? (a) wood (b) copper (c) rubber (d) glass
  4. 4.Which of these needs a flexible material? (a) a spectacle lens (b) a hair band (c) an oven glove (d) an umbrella cover
  5. 5.🧱 Which property matters most for a roof sheet? (a) flexible (b) heat insulator (c) waterproof (d) electrical conductor
  6. 6.True or false: a water tank needs a waterproof material. (a) False (b) True
  7. 7.Which of these needs an electrical conductor? (a) a switch contact (b) a skipping rope (c) a cooking pot handle (d) an umbrella cover
  8. 8.Which of these needs an electrical conductor? (a) a cooking pot handle (b) a raincoat (c) the core of a wire (d) a water tank
  9. 9.🧱 Which material is best for a raincoat? (a) cotton wool (b) cardboard (c) plastic-coated cloth (d) paper
  10. 10.🧱 Which property matters most for an umbrella cover? (a) heat insulator (b) transparent (c) electrical conductor (d) waterproof
  11. 11.🔍 Which is the odd one out? (a) iron (b) rubber (c) aluminium (d) brass
  12. 12.🧱 Which property matters most for a water tank? (a) heat insulator (b) flexible (c) electrical conductor (d) waterproof
  13. 13.🧱 Which property matters most for a boat hull? (a) electrical conductor (b) waterproof (c) transparent (d) flexible
  14. 14.🔍 Which is the odd one out? (a) graphite (b) steel (c) iron (d) clay pottery
  15. 15.🔍 Which is the odd one out? (a) steel (b) cotton cloth (c) brass (d) aluminium
  16. 16.True or false: an oven glove needs a heat insulator. (a) False (b) True
  17. 17.🧱 Which property matters most for a cooking pot handle? (a) transparent (b) flexible (c) heat insulator (d) waterproof
  18. 18.🔍 Which is the odd one out? (a) dry wood (b) rubber (c) aluminium (d) cotton cloth
  19. 19.🧱 Which property matters most for a spectacle lens? (a) heat insulator (b) transparent (c) waterproof (d) flexible
  20. 20.🧱 Is glass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  21. 21.🔍 Which is the odd one out? (a) rubber (b) copper (c) clay pottery (d) plastic
  22. 22.🔍 Which is the odd one out? (a) steel (b) clay pottery (c) rubber (d) dry wood
  23. 23.Which of these needs a waterproof material? (a) a car seat belt (b) a hair band (c) a tea flask lining (d) an umbrella cover
  24. 24.True or false: a window pane needs a flexible material. (a) True (b) False
  25. 25.🧱 Is cotton cloth an electrical conductor or an insulator? (a) a conductor (b) an insulator
  26. 26.🧱 Which property matters most for a skipping rope? (a) flexible (b) electrical conductor (c) waterproof (d) transparent
  27. 27.True or false: a cooking pot handle needs a heat insulator. (a) False (b) True
  28. 28.True or false: a switch contact needs a flexible material. (a) True (b) False
  29. 29.True or false: a roof sheet needs a transparent material. (a) True (b) False
  30. 30.True or false: an umbrella cover needs an electrical conductor. (a) True (b) False
  31. 31.🧱 Which property matters most for a magnifier lens? (a) transparent (b) heat insulator (c) electrical conductor (d) flexible
  32. 32.True or false: the core of a wire needs a transparent material. (a) False (b) True
  33. 33.True or false: a switch contact needs a heat insulator. (a) False (b) True
  34. 34.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  35. 35.🧱 Which property matters most for a tea flask lining? (a) flexible (b) electrical conductor (c) heat insulator (d) transparent
  36. 36.🧱 Which property matters most for a switch contact? (a) transparent (b) electrical conductor (c) heat insulator (d) waterproof
  37. 37.Which of these needs a waterproof material? (a) an oven glove (b) a water tank (c) a switch contact (d) the core of a wire
  38. 38.Which of these needs a flexible material? (a) a roof sheet (b) a yoga mat (c) a plug pin (d) a water tank
  39. 39.🧱 Which property matters most for the core of a wire? (a) electrical conductor (b) transparent (c) waterproof (d) heat insulator
  40. 40.🧱 Is dry wood an electrical conductor or an insulator? (a) a conductor (b) an insulator

Answer key

  1. steel
  2. flexible
  3. copper
  4. a hair band
  5. waterproof
  6. True
  7. a switch contact
  8. the core of a wire
  9. plastic-coated cloth
  10. waterproof
  11. rubber
  12. waterproof
  13. waterproof
  14. clay pottery
  15. cotton cloth
  16. True
  17. heat insulator
  18. aluminium
  19. transparent
  20. an insulator
  21. copper
  22. steel
  23. an umbrella cover
  24. False
  25. an insulator
  26. flexible
  27. True
  28. False
  29. False
  30. False
  31. transparent
  32. False
  33. False
  34. a conductor
  35. heat insulator
  36. electrical conductor
  37. a water tank
  38. a yoga mat
  39. electrical conductor
  40. an insulator

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