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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 308 · 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 of these needs an electrical conductor? (a) a skipping rope (b) a car seat belt (c) the core of a wire (d) a cooking pot handle
  2. 2.🔍 Which is the odd one out? (a) cotton cloth (b) glass (c) brass (d) dry wood
  3. 3.🧱 Which property matters most for a magnifier lens? (a) flexible (b) electrical conductor (c) heat insulator (d) transparent
  4. 4.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
  5. 5.🔍 Which is the odd one out? (a) rubber (b) cotton cloth (c) graphite (d) clay pottery
  6. 6.Which of these needs a flexible material? (a) a plug pin (b) a raincoat (c) a car seat belt (d) a boat hull
  7. 7.🔍 Which is the odd one out? (a) copper (b) glass (c) steel (d) brass
  8. 8.🧱 Which property matters most for a yoga mat? (a) electrical conductor (b) heat insulator (c) flexible (d) transparent
  9. 9.Which of these needs a flexible material? (a) the core of a wire (b) a tea flask lining (c) a skipping rope (d) an umbrella cover
  10. 10.🔍 Which is the odd one out? (a) rubber (b) glass (c) clay pottery (d) iron
  11. 11.True or false: a raincoat needs an electrical conductor. (a) True (b) False
  12. 12.True or false: a yoga mat needs a transparent material. (a) True (b) False
  13. 13.🧱 Which property matters most for a hair band? (a) transparent (b) flexible (c) waterproof (d) heat insulator
  14. 14.🧱 Which property matters most for a roof sheet? (a) heat insulator (b) waterproof (c) flexible (d) transparent
  15. 15.True or false: a yoga mat needs a waterproof material. (a) True (b) False
  16. 16.🧱 Which material is best for the core of an electric wire? (a) wood (b) rubber (c) copper (d) glass
  17. 17.🧱 Which property matters most for an umbrella cover? (a) waterproof (b) electrical conductor (c) flexible (d) transparent
  18. 18.True or false: a car seat belt needs a flexible material. (a) True (b) False
  19. 19.🔍 Which is the odd one out? (a) copper (b) cotton cloth (c) brass (d) steel
  20. 20.🧱 Is rubber an electrical conductor or an insulator? (a) an insulator (b) a conductor
  21. 21.Which of these needs a waterproof material? (a) a tea flask lining (b) a window pane (c) a raincoat (d) a skipping rope
  22. 22.Which of these needs a transparent material? (a) a window pane (b) a car seat belt (c) an umbrella cover (d) a raincoat
  23. 23.Which of these needs a waterproof material? (a) a car seat belt (b) an umbrella cover (c) a hair band (d) a cooking pot handle
  24. 24.🧱 Which material is best for a raincoat? (a) plastic-coated cloth (b) paper (c) cardboard (d) cotton wool
  25. 25.🧱 Which material is best for a window pane? (a) wood (b) steel (c) glass (d) brick
  26. 26.🧱 Which material is best for a cooking pot handle? (a) aluminium (b) iron (c) copper (d) wood or plastic
  27. 27.Which of these needs a heat insulator? (a) a skipping rope (b) a window pane (c) a yoga mat (d) a cooking pot handle
  28. 28.True or false: a raincoat needs a waterproof material. (a) False (b) True
  29. 29.True or false: a cooking pot handle needs a heat insulator. (a) False (b) True
  30. 30.🧱 Is cotton cloth an electrical conductor or an insulator? (a) an insulator (b) a conductor
  31. 31.Which of these needs a heat insulator? (a) a window pane (b) the core of a wire (c) a switch contact (d) a tea flask lining
  32. 32.🧱 Which property matters most for a switch contact? (a) electrical conductor (b) waterproof (c) transparent (d) flexible
  33. 33.🔍 Which is the odd one out? (a) iron (b) copper (c) graphite (d) clay pottery
  34. 34.🔍 Which is the odd one out? (a) aluminium (b) copper (c) iron (d) dry wood
  35. 35.🧱 Which property matters most for a car seat belt? (a) waterproof (b) electrical conductor (c) heat insulator (d) flexible
  36. 36.🧱 Is dry wood an electrical conductor or an insulator? (a) a conductor (b) an insulator
  37. 37.Which of these needs a waterproof material? (a) a plug pin (b) a magnifier lens (c) a boat hull (d) a car windscreen
  38. 38.Which of these needs a transparent material? (a) a magnifier lens (b) a tea flask lining (c) a raincoat (d) a boat hull
  39. 39.Which of these needs a heat insulator? (a) a plug pin (b) an umbrella cover (c) an oven glove (d) a hair band
  40. 40.🔍 Which is the odd one out? (a) iron (b) copper (c) plastic (d) brass

Answer key

  1. the core of a wire
  2. brass
  3. transparent
  4. an insulator
  5. graphite
  6. a car seat belt
  7. glass
  8. flexible
  9. a skipping rope
  10. iron
  11. False
  12. False
  13. flexible
  14. waterproof
  15. False
  16. copper
  17. waterproof
  18. True
  19. cotton cloth
  20. an insulator
  21. a raincoat
  22. a window pane
  23. an umbrella cover
  24. plastic-coated cloth
  25. glass
  26. wood or plastic
  27. a cooking pot handle
  28. True
  29. True
  30. an insulator
  31. a tea flask lining
  32. electrical conductor
  33. clay pottery
  34. dry wood
  35. flexible
  36. an insulator
  37. a boat hull
  38. a magnifier lens
  39. an oven glove
  40. plastic

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