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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 405 · 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 core of an electric wire? (a) glass (b) copper (c) wood (d) rubber
  2. 2.Which of these needs a heat insulator? (a) a cooking pot handle (b) a yoga mat (c) a switch contact (d) an umbrella cover
  3. 3.🧱 Is glass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  4. 4.🔍 Which is the odd one out? (a) rubber (b) aluminium (c) graphite (d) steel
  5. 5.🔍 Which is the odd one out? (a) brass (b) aluminium (c) glass (d) graphite
  6. 6.🧱 Which property matters most for a hair band? (a) heat insulator (b) waterproof (c) flexible (d) electrical conductor
  7. 7.🧱 Which property matters most for a cooking pot handle? (a) waterproof (b) flexible (c) heat insulator (d) electrical conductor
  8. 8.Which of these needs a flexible material? (a) a car seat belt (b) a water tank (c) a boat hull (d) a tea flask lining
  9. 9.Which of these needs a heat insulator? (a) a skipping rope (b) a spectacle lens (c) a magnifier lens (d) an oven glove
  10. 10.🧱 Which property matters most for a tea flask lining? (a) electrical conductor (b) heat insulator (c) waterproof (d) flexible
  11. 11.True or false: a skipping rope needs a transparent material. (a) True (b) False
  12. 12.Which of these needs a waterproof material? (a) a switch contact (b) a roof sheet (c) a cooking pot handle (d) a car windscreen
  13. 13.Which of these needs a transparent material? (a) a car seat belt (b) the core of a wire (c) a spectacle lens (d) a switch contact
  14. 14.Which of these needs a heat insulator? (a) the core of a wire (b) a window pane (c) a tea flask lining (d) a roof sheet
  15. 15.🧱 Is iron an electrical conductor or an insulator? (a) a conductor (b) an insulator
  16. 16.True or false: the core of a wire needs an electrical conductor. (a) False (b) True
  17. 17.🧱 Which property matters most for a water tank? (a) waterproof (b) heat insulator (c) transparent (d) flexible
  18. 18.🔍 Which is the odd one out? (a) brass (b) copper (c) dry wood (d) iron
  19. 19.🧱 Which property matters most for a car seat belt? (a) waterproof (b) flexible (c) heat insulator (d) electrical conductor
  20. 20.🧱 Which material is best for a cooking pot handle? (a) iron (b) copper (c) wood or plastic (d) aluminium
  21. 21.True or false: an umbrella cover needs a waterproof material. (a) False (b) True
  22. 22.🧱 Which material is best for a raincoat? (a) plastic-coated cloth (b) cardboard (c) paper (d) cotton wool
  23. 23.Which of these needs an electrical conductor? (a) a skipping rope (b) an oven glove (c) a raincoat (d) the core of a wire
  24. 24.🔍 Which is the odd one out? (a) copper (b) cotton cloth (c) brass (d) iron
  25. 25.🧱 Is dry wood an electrical conductor or an insulator? (a) an insulator (b) a conductor
  26. 26.🧱 Which property matters most for a spectacle lens? (a) transparent (b) flexible (c) waterproof (d) heat insulator
  27. 27.Which of these needs an electrical conductor? (a) an umbrella cover (b) a magnifier lens (c) a window pane (d) a switch contact
  28. 28.🧱 Which property matters most for a car windscreen? (a) electrical conductor (b) transparent (c) heat insulator (d) flexible
  29. 29.True or false: a yoga mat needs a transparent material. (a) True (b) False
  30. 30.True or false: a skipping rope needs a waterproof material. (a) True (b) False
  31. 31.True or false: a plug pin needs a transparent material. (a) False (b) True
  32. 32.Which of these needs a waterproof material? (a) a spectacle lens (b) a switch contact (c) a tea flask lining (d) a raincoat
  33. 33.🔍 Which is the odd one out? (a) dry wood (b) brass (c) clay pottery (d) rubber
  34. 34.Which of these needs a waterproof material? (a) a boat hull (b) a car seat belt (c) an oven glove (d) a hair band
  35. 35.🔍 Which is the odd one out? (a) clay pottery (b) rubber (c) steel (d) glass
  36. 36.🧱 Is copper an electrical conductor or an insulator? (a) a conductor (b) an insulator
  37. 37.🧱 Which property matters most for a yoga mat? (a) heat insulator (b) transparent (c) waterproof (d) flexible
  38. 38.True or false: a spectacle lens needs a transparent material. (a) True (b) False
  39. 39.True or false: a switch contact needs an electrical conductor. (a) True (b) False
  40. 40.🔍 Which is the odd one out? (a) dry wood (b) plastic (c) aluminium (d) clay pottery

Answer key

  1. copper
  2. a cooking pot handle
  3. an insulator
  4. rubber
  5. glass
  6. flexible
  7. heat insulator
  8. a car seat belt
  9. an oven glove
  10. heat insulator
  11. False
  12. a roof sheet
  13. a spectacle lens
  14. a tea flask lining
  15. a conductor
  16. True
  17. waterproof
  18. dry wood
  19. flexible
  20. wood or plastic
  21. True
  22. plastic-coated cloth
  23. the core of a wire
  24. cotton cloth
  25. an insulator
  26. transparent
  27. a switch contact
  28. transparent
  29. False
  30. False
  31. False
  32. a raincoat
  33. brass
  34. a boat hull
  35. steel
  36. a conductor
  37. flexible
  38. True
  39. True
  40. aluminium

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