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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 104 · 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 property matters most for a roof sheet? (a) transparent (b) heat insulator (c) electrical conductor (d) waterproof
  2. 2.🔍 Which is the odd one out? (a) clay pottery (b) graphite (c) rubber (d) plastic
  3. 3.True or false: a skipping rope needs a flexible material. (a) False (b) True
  4. 4.🧱 Is steel an electrical conductor or an insulator? (a) a conductor (b) an insulator
  5. 5.🧱 Which material is best for the core of an electric wire? (a) wood (b) copper (c) glass (d) rubber
  6. 6.Which of these needs a waterproof material? (a) a car seat belt (b) an umbrella cover (c) a spectacle lens (d) a tea flask lining
  7. 7.Which of these needs a flexible material? (a) a cooking pot handle (b) an oven glove (c) a skipping rope (d) the core of a wire
  8. 8.🧱 Is cotton cloth an electrical conductor or an insulator? (a) an insulator (b) a conductor
  9. 9.🧱 Which property matters most for a water tank? (a) electrical conductor (b) transparent (c) waterproof (d) flexible
  10. 10.🧱 Is graphite an electrical conductor or an insulator? (a) an insulator (b) a conductor
  11. 11.Which of these needs a heat insulator? (a) a plug pin (b) a yoga mat (c) a roof sheet (d) an oven glove
  12. 12.🧱 Which property matters most for a tea flask lining? (a) electrical conductor (b) flexible (c) heat insulator (d) waterproof
  13. 13.🧱 Which material is best for a raincoat? (a) cotton wool (b) plastic-coated cloth (c) cardboard (d) paper
  14. 14.Which of these needs a heat insulator? (a) a car windscreen (b) a cooking pot handle (c) a magnifier lens (d) a switch contact
  15. 15.🧱 Which property matters most for a skipping rope? (a) transparent (b) waterproof (c) heat insulator (d) flexible
  16. 16.Which of these needs a transparent material? (a) a roof sheet (b) a car windscreen (c) a skipping rope (d) a boat hull
  17. 17.Which of these needs a waterproof material? (a) a magnifier lens (b) a yoga mat (c) a roof sheet (d) a tea flask lining
  18. 18.True or false: a raincoat needs an electrical conductor. (a) False (b) True
  19. 19.True or false: an oven glove needs a waterproof material. (a) True (b) False
  20. 20.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  21. 21.Which of these needs a flexible material? (a) a yoga mat (b) a tea flask lining (c) the core of a wire (d) a water tank
  22. 22.🔍 Which is the odd one out? (a) cotton cloth (b) graphite (c) steel (d) iron
  23. 23.True or false: a yoga mat needs a heat insulator. (a) True (b) False
  24. 24.True or false: a car seat belt needs a waterproof material. (a) False (b) True
  25. 25.🧱 Which material is best for a cooking pot handle? (a) copper (b) iron (c) aluminium (d) wood or plastic
  26. 26.Which of these needs a flexible material? (a) a plug pin (b) a hair band (c) a roof sheet (d) a car windscreen
  27. 27.🔍 Which is the odd one out? (a) iron (b) steel (c) brass (d) glass
  28. 28.🧱 Which material is best for a window pane? (a) wood (b) steel (c) glass (d) brick
  29. 29.🔍 Which is the odd one out? (a) cotton cloth (b) brass (c) plastic (d) clay pottery
  30. 30.Which of these needs an electrical conductor? (a) a spectacle lens (b) a raincoat (c) a plug pin (d) a cooking pot handle
  31. 31.🧱 Is iron an electrical conductor or an insulator? (a) a conductor (b) an insulator
  32. 32.True or false: a roof sheet needs a waterproof material. (a) True (b) False
  33. 33.🧱 Is clay pottery an electrical conductor or an insulator? (a) a conductor (b) an insulator
  34. 34.🧱 Which property matters most for a cooking pot handle? (a) transparent (b) electrical conductor (c) waterproof (d) heat insulator
  35. 35.🧱 Is copper an electrical conductor or an insulator? (a) a conductor (b) an insulator
  36. 36.Which of these needs a heat insulator? (a) a hair band (b) a car seat belt (c) a raincoat (d) a tea flask lining
  37. 37.True or false: a car seat belt needs a transparent material. (a) True (b) False
  38. 38.🧱 Which property matters most for a plug pin? (a) waterproof (b) heat insulator (c) electrical conductor (d) transparent
  39. 39.🔍 Which is the odd one out? (a) iron (b) dry wood (c) clay pottery (d) glass
  40. 40.True or false: a switch contact needs an electrical conductor. (a) False (b) True

Answer key

  1. waterproof
  2. graphite
  3. True
  4. a conductor
  5. copper
  6. an umbrella cover
  7. a skipping rope
  8. an insulator
  9. waterproof
  10. a conductor
  11. an oven glove
  12. heat insulator
  13. plastic-coated cloth
  14. a cooking pot handle
  15. flexible
  16. a car windscreen
  17. a roof sheet
  18. False
  19. False
  20. a conductor
  21. a yoga mat
  22. cotton cloth
  23. False
  24. False
  25. wood or plastic
  26. a hair band
  27. glass
  28. glass
  29. brass
  30. a plug pin
  31. a conductor
  32. True
  33. an insulator
  34. heat insulator
  35. a conductor
  36. a tea flask lining
  37. False
  38. electrical conductor
  39. iron
  40. True

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