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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 918 · 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 is the odd one out? (a) glass (b) aluminium (c) graphite (d) brass
  2. 2.True or false: a switch contact needs a waterproof material. (a) True (b) False
  3. 3.Which of these needs a transparent material? (a) a magnifier lens (b) a water tank (c) a hair band (d) an umbrella cover
  4. 4.🧱 Which property matters most for a tea flask lining? (a) flexible (b) waterproof (c) heat insulator (d) transparent
  5. 5.🧱 Which property matters most for a window pane? (a) heat insulator (b) flexible (c) electrical conductor (d) transparent
  6. 6.🧱 Which material is best for a window pane? (a) steel (b) wood (c) brick (d) glass
  7. 7.🧱 Is clay pottery an electrical conductor or an insulator? (a) a conductor (b) an insulator
  8. 8.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
  9. 9.🔍 Which is the odd one out? (a) clay pottery (b) iron (c) dry wood (d) glass
  10. 10.Which of these needs a heat insulator? (a) a car seat belt (b) a cooking pot handle (c) a plug pin (d) a boat hull
  11. 11.🧱 Which material is best for a raincoat? (a) cotton wool (b) cardboard (c) plastic-coated cloth (d) paper
  12. 12.Which of these needs an electrical conductor? (a) a raincoat (b) the core of a wire (c) a water tank (d) a tea flask lining
  13. 13.🧱 Is plastic an electrical conductor or an insulator? (a) an insulator (b) a conductor
  14. 14.🔍 Which is the odd one out? (a) dry wood (b) clay pottery (c) brass (d) rubber
  15. 15.True or false: a car seat belt needs a waterproof material. (a) True (b) False
  16. 16.🧱 Which property matters most for a spectacle lens? (a) electrical conductor (b) flexible (c) heat insulator (d) transparent
  17. 17.🧱 Which property matters most for a roof sheet? (a) electrical conductor (b) flexible (c) heat insulator (d) waterproof
  18. 18.Which of these needs a flexible material? (a) a plug pin (b) a yoga mat (c) a spectacle lens (d) a magnifier lens
  19. 19.🔍 Which is the odd one out? (a) brass (b) aluminium (c) clay pottery (d) steel
  20. 20.🧱 Which property matters most for the core of a wire? (a) electrical conductor (b) flexible (c) transparent (d) waterproof
  21. 21.🧱 Which property matters most for a yoga mat? (a) heat insulator (b) waterproof (c) flexible (d) transparent
  22. 22.True or false: a window pane needs a waterproof material. (a) False (b) True
  23. 23.🔍 Which is the odd one out? (a) iron (b) dry wood (c) copper (d) brass
  24. 24.Which of these needs a waterproof material? (a) a car seat belt (b) a tea flask lining (c) a switch contact (d) a water tank
  25. 25.🧱 Which property matters most for a hair band? (a) electrical conductor (b) flexible (c) heat insulator (d) waterproof
  26. 26.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  27. 27.Which of these needs a flexible material? (a) a cooking pot handle (b) a roof sheet (c) a car windscreen (d) a skipping rope
  28. 28.Which of these needs a flexible material? (a) an oven glove (b) a hair band (c) a boat hull (d) a water tank
  29. 29.🔍 Which is the odd one out? (a) aluminium (b) iron (c) graphite (d) plastic
  30. 30.🧱 Which property matters most for a plug pin? (a) electrical conductor (b) transparent (c) heat insulator (d) waterproof
  31. 31.🔍 Which is the odd one out? (a) copper (b) steel (c) brass (d) cotton cloth
  32. 32.True or false: an umbrella cover needs an electrical conductor. (a) True (b) False
  33. 33.Which of these needs a waterproof material? (a) an umbrella cover (b) a switch contact (c) the core of a wire (d) a hair band
  34. 34.🧱 Which material is best for the bars inside concrete? (a) glass (b) rubber (c) steel (d) plastic
  35. 35.🧱 Which property matters most for a car seat belt? (a) transparent (b) electrical conductor (c) heat insulator (d) flexible
  36. 36.🔍 Which is the odd one out? (a) rubber (b) brass (c) aluminium (d) graphite
  37. 37.True or false: a boat hull needs a waterproof material. (a) False (b) True
  38. 38.🧱 Which material is best for the core of an electric wire? (a) glass (b) rubber (c) copper (d) wood
  39. 39.True or false: a roof sheet needs a flexible material. (a) False (b) True
  40. 40.True or false: a hair band needs a flexible material. (a) True (b) False

Answer key

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

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