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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 493 · 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) brass (b) iron (c) plastic (d) graphite
  2. 2.🧱 Is clay pottery an electrical conductor or an insulator? (a) an insulator (b) a conductor
  3. 3.🧱 Which property matters most for a hair band? (a) transparent (b) flexible (c) waterproof (d) electrical conductor
  4. 4.🧱 Which property matters most for a spectacle lens? (a) flexible (b) waterproof (c) electrical conductor (d) transparent
  5. 5.🔍 Which is the odd one out? (a) dry wood (b) clay pottery (c) aluminium (d) rubber
  6. 6.🧱 Which property matters most for a tea flask lining? (a) heat insulator (b) electrical conductor (c) transparent (d) waterproof
  7. 7.🧱 Which property matters most for a roof sheet? (a) flexible (b) transparent (c) heat insulator (d) waterproof
  8. 8.🧱 Is rubber an electrical conductor or an insulator? (a) an insulator (b) a conductor
  9. 9.🧱 Which material is best for a raincoat? (a) plastic-coated cloth (b) cardboard (c) cotton wool (d) paper
  10. 10.Which of these needs an electrical conductor? (a) a water tank (b) a car windscreen (c) the core of a wire (d) an umbrella cover
  11. 11.🧱 Which material is best for the core of an electric wire? (a) glass (b) wood (c) copper (d) rubber
  12. 12.🧱 Is brass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  13. 13.🔍 Which is the odd one out? (a) brass (b) cotton cloth (c) clay pottery (d) rubber
  14. 14.🧱 Which property matters most for an umbrella cover? (a) heat insulator (b) transparent (c) waterproof (d) electrical conductor
  15. 15.Which of these needs a waterproof material? (a) a magnifier lens (b) an umbrella cover (c) a yoga mat (d) a skipping rope
  16. 16.🔍 Which is the odd one out? (a) glass (b) steel (c) cotton cloth (d) plastic
  17. 17.🧱 Which property matters most for a car seat belt? (a) waterproof (b) electrical conductor (c) transparent (d) flexible
  18. 18.Which of these needs an electrical conductor? (a) a water tank (b) a car windscreen (c) a hair band (d) a switch contact
  19. 19.🧱 Which property matters most for a boat hull? (a) heat insulator (b) electrical conductor (c) waterproof (d) flexible
  20. 20.🔍 Which is the odd one out? (a) glass (b) clay pottery (c) graphite (d) rubber
  21. 21.🔍 Which is the odd one out? (a) brass (b) glass (c) aluminium (d) iron
  22. 22.🧱 Which property matters most for a car windscreen? (a) waterproof (b) electrical conductor (c) transparent (d) flexible
  23. 23.🧱 Which property matters most for the core of a wire? (a) transparent (b) flexible (c) heat insulator (d) electrical conductor
  24. 24.True or false: a tea flask lining needs a waterproof material. (a) False (b) True
  25. 25.Which of these needs a flexible material? (a) a roof sheet (b) a tea flask lining (c) a water tank (d) a hair band
  26. 26.Which of these needs a flexible material? (a) a car windscreen (b) a skipping rope (c) a plug pin (d) a magnifier lens
  27. 27.🧱 Is plastic an electrical conductor or an insulator? (a) an insulator (b) a conductor
  28. 28.🔍 Which is the odd one out? (a) copper (b) aluminium (c) iron (d) rubber
  29. 29.🧱 Which material is best for a cooking pot handle? (a) copper (b) aluminium (c) iron (d) wood or plastic
  30. 30.Which of these needs a heat insulator? (a) a water tank (b) an umbrella cover (c) a car windscreen (d) a tea flask lining
  31. 31.Which of these needs a heat insulator? (a) a hair band (b) an oven glove (c) a roof sheet (d) the core of a wire
  32. 32.🔍 Which is the odd one out? (a) plastic (b) rubber (c) copper (d) cotton cloth
  33. 33.🧱 Which property matters most for a yoga mat? (a) flexible (b) waterproof (c) heat insulator (d) transparent
  34. 34.True or false: the core of a wire needs an electrical conductor. (a) False (b) True
  35. 35.🧱 Is dry wood an electrical conductor or an insulator? (a) an insulator (b) a conductor
  36. 36.🧱 Is glass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  37. 37.True or false: a car seat belt needs a waterproof material. (a) True (b) False
  38. 38.Which of these needs a waterproof material? (a) a yoga mat (b) a skipping rope (c) a window pane (d) a water tank
  39. 39.🧱 Which property matters most for a cooking pot handle? (a) flexible (b) electrical conductor (c) heat insulator (d) waterproof
  40. 40.True or false: a raincoat needs an electrical conductor. (a) True (b) False

Answer key

  1. plastic
  2. an insulator
  3. flexible
  4. transparent
  5. aluminium
  6. heat insulator
  7. waterproof
  8. an insulator
  9. plastic-coated cloth
  10. the core of a wire
  11. copper
  12. a conductor
  13. brass
  14. waterproof
  15. an umbrella cover
  16. steel
  17. flexible
  18. a switch contact
  19. waterproof
  20. graphite
  21. glass
  22. transparent
  23. electrical conductor
  24. False
  25. a hair band
  26. a skipping rope
  27. an insulator
  28. rubber
  29. wood or plastic
  30. a tea flask lining
  31. an oven glove
  32. copper
  33. flexible
  34. True
  35. an insulator
  36. an insulator
  37. False
  38. a water tank
  39. heat insulator
  40. False

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