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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 55 · 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 car seat belt? (a) heat insulator (b) electrical conductor (c) flexible (d) transparent
  2. 2.Which of these needs a flexible material? (a) a water tank (b) a switch contact (c) a tea flask lining (d) a skipping rope
  3. 3.🔍 Which is the odd one out? (a) rubber (b) clay pottery (c) dry wood (d) steel
  4. 4.🧱 Which property matters most for a car windscreen? (a) transparent (b) electrical conductor (c) flexible (d) heat insulator
  5. 5.🧱 Is dry wood an electrical conductor or an insulator? (a) a conductor (b) an insulator
  6. 6.True or false: a boat hull needs a heat insulator. (a) False (b) True
  7. 7.True or false: an oven glove needs a waterproof material. (a) True (b) False
  8. 8.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  9. 9.🔍 Which is the odd one out? (a) graphite (b) copper (c) cotton cloth (d) brass
  10. 10.🧱 Which material is best for a window pane? (a) brick (b) steel (c) glass (d) wood
  11. 11.🧱 Which property matters most for an umbrella cover? (a) heat insulator (b) transparent (c) flexible (d) waterproof
  12. 12.True or false: an umbrella cover needs a heat insulator. (a) True (b) False
  13. 13.🔍 Which is the odd one out? (a) iron (b) copper (c) dry wood (d) steel
  14. 14.True or false: a spectacle lens needs a waterproof material. (a) True (b) False
  15. 15.Which of these needs an electrical conductor? (a) a tea flask lining (b) an oven glove (c) a switch contact (d) a magnifier lens
  16. 16.🧱 Which material is best for the bars inside concrete? (a) rubber (b) plastic (c) steel (d) glass
  17. 17.Which of these needs a waterproof material? (a) a yoga mat (b) a cooking pot handle (c) a raincoat (d) a skipping rope
  18. 18.🔍 Which is the odd one out? (a) plastic (b) iron (c) rubber (d) dry wood
  19. 19.🔍 Which is the odd one out? (a) rubber (b) clay pottery (c) graphite (d) dry wood
  20. 20.🧱 Which property matters most for an oven glove? (a) flexible (b) transparent (c) waterproof (d) heat insulator
  21. 21.True or false: a window pane needs a transparent material. (a) False (b) True
  22. 22.🧱 Which property matters most for a yoga mat? (a) heat insulator (b) flexible (c) waterproof (d) transparent
  23. 23.Which of these needs a waterproof material? (a) a skipping rope (b) a plug pin (c) a boat hull (d) a tea flask lining
  24. 24.True or false: an umbrella cover needs a waterproof material. (a) False (b) True
  25. 25.True or false: a car windscreen needs a transparent material. (a) False (b) True
  26. 26.True or false: a spectacle lens needs a transparent material. (a) False (b) True
  27. 27.🧱 Which material is best for the core of an electric wire? (a) glass (b) copper (c) wood (d) rubber
  28. 28.🧱 Which property matters most for a water tank? (a) flexible (b) heat insulator (c) transparent (d) waterproof
  29. 29.True or false: a raincoat needs a waterproof material. (a) True (b) False
  30. 30.🧱 Which property matters most for a plug pin? (a) waterproof (b) heat insulator (c) flexible (d) electrical conductor
  31. 31.🔍 Which is the odd one out? (a) clay pottery (b) glass (c) brass (d) dry wood
  32. 32.True or false: a roof sheet needs a waterproof material. (a) True (b) False
  33. 33.Which of these needs a waterproof material? (a) a hair band (b) a water tank (c) a switch contact (d) a car seat belt
  34. 34.🧱 Is copper an electrical conductor or an insulator? (a) a conductor (b) an insulator
  35. 35.🧱 Which material is best for a raincoat? (a) cardboard (b) plastic-coated cloth (c) paper (d) cotton wool
  36. 36.🧱 Which material is best for a cooking pot handle? (a) copper (b) iron (c) wood or plastic (d) aluminium
  37. 37.🔍 Which is the odd one out? (a) graphite (b) brass (c) aluminium (d) plastic
  38. 38.🧱 Which property matters most for a roof sheet? (a) transparent (b) waterproof (c) heat insulator (d) flexible
  39. 39.🧱 Is rubber an electrical conductor or an insulator? (a) a conductor (b) an insulator
  40. 40.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor

Answer key

  1. flexible
  2. a skipping rope
  3. steel
  4. transparent
  5. an insulator
  6. False
  7. False
  8. a conductor
  9. cotton cloth
  10. glass
  11. waterproof
  12. False
  13. dry wood
  14. False
  15. a switch contact
  16. steel
  17. a raincoat
  18. iron
  19. graphite
  20. heat insulator
  21. True
  22. flexible
  23. a boat hull
  24. True
  25. True
  26. True
  27. copper
  28. waterproof
  29. True
  30. electrical conductor
  31. brass
  32. True
  33. a water tank
  34. a conductor
  35. plastic-coated cloth
  36. wood or plastic
  37. plastic
  38. waterproof
  39. an insulator
  40. a conductor

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