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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 246 · 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 a flexible material? (a) a water tank (b) a hair band (c) a window pane (d) a magnifier lens
  2. 2.🧱 Which property matters most for a raincoat? (a) heat insulator (b) waterproof (c) transparent (d) flexible
  3. 3.Which of these needs a transparent material? (a) a tea flask lining (b) an umbrella cover (c) a yoga mat (d) a car windscreen
  4. 4.🔍 Which is the odd one out? (a) graphite (b) glass (c) clay pottery (d) dry wood
  5. 5.🧱 Which property matters most for a hair band? (a) flexible (b) electrical conductor (c) transparent (d) waterproof
  6. 6.🧱 Which property matters most for a window pane? (a) heat insulator (b) electrical conductor (c) transparent (d) waterproof
  7. 7.🧱 Is steel an electrical conductor or an insulator? (a) a conductor (b) an insulator
  8. 8.🧱 Which material is best for the core of an electric wire? (a) copper (b) rubber (c) glass (d) wood
  9. 9.🧱 Which property matters most for a cooking pot handle? (a) electrical conductor (b) waterproof (c) transparent (d) heat insulator
  10. 10.🧱 Which material is best for a raincoat? (a) cotton wool (b) plastic-coated cloth (c) cardboard (d) paper
  11. 11.🔍 Which is the odd one out? (a) clay pottery (b) graphite (c) copper (d) aluminium
  12. 12.🧱 Which material is best for the bars inside concrete? (a) steel (b) rubber (c) plastic (d) glass
  13. 13.🧱 Is plastic an electrical conductor or an insulator? (a) an insulator (b) a conductor
  14. 14.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  15. 15.🔍 Which is the odd one out? (a) graphite (b) copper (c) glass (d) aluminium
  16. 16.🧱 Is rubber an electrical conductor or an insulator? (a) an insulator (b) a conductor
  17. 17.True or false: a raincoat needs a waterproof material. (a) True (b) False
  18. 18.🧱 Which property matters most for a yoga mat? (a) flexible (b) electrical conductor (c) transparent (d) heat insulator
  19. 19.🧱 Which material is best for a cooking pot handle? (a) iron (b) copper (c) aluminium (d) wood or plastic
  20. 20.True or false: a cooking pot handle needs a flexible material. (a) True (b) False
  21. 21.🔍 Which is the odd one out? (a) dry wood (b) plastic (c) rubber (d) copper
  22. 22.Which of these needs an electrical conductor? (a) a hair band (b) a car windscreen (c) a boat hull (d) a plug pin
  23. 23.🧱 Which property matters most for the core of a wire? (a) transparent (b) heat insulator (c) waterproof (d) electrical conductor
  24. 24.True or false: a hair band needs a transparent material. (a) False (b) True
  25. 25.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  26. 26.Which of these needs an electrical conductor? (a) the core of a wire (b) a roof sheet (c) a raincoat (d) a spectacle lens
  27. 27.Which of these needs a waterproof material? (a) a tea flask lining (b) a water tank (c) a window pane (d) the core of a wire
  28. 28.Which of these needs a heat insulator? (a) a car seat belt (b) a yoga mat (c) an oven glove (d) an umbrella cover
  29. 29.🧱 Which property matters most for an oven glove? (a) waterproof (b) heat insulator (c) flexible (d) electrical conductor
  30. 30.🧱 Is cotton cloth an electrical conductor or an insulator? (a) an insulator (b) a conductor
  31. 31.🔍 Which is the odd one out? (a) plastic (b) rubber (c) iron (d) cotton cloth
  32. 32.🧱 Which property matters most for an umbrella cover? (a) flexible (b) transparent (c) heat insulator (d) waterproof
  33. 33.Which of these needs a heat insulator? (a) a tea flask lining (b) a boat hull (c) the core of a wire (d) a magnifier lens
  34. 34.🧱 Which property matters most for a roof sheet? (a) electrical conductor (b) flexible (c) waterproof (d) heat insulator
  35. 35.True or false: a magnifier lens needs a waterproof material. (a) True (b) False
  36. 36.Which of these needs a flexible material? (a) a skipping rope (b) a raincoat (c) an umbrella cover (d) a magnifier lens
  37. 37.🧱 Which property matters most for a magnifier lens? (a) waterproof (b) electrical conductor (c) heat insulator (d) transparent
  38. 38.Which of these needs a transparent material? (a) a boat hull (b) a roof sheet (c) a tea flask lining (d) a window pane
  39. 39.🔍 Which is the odd one out? (a) steel (b) brass (c) plastic (d) aluminium
  40. 40.True or false: a window pane needs a transparent material. (a) True (b) False

Answer key

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

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