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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 799 · 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) dry wood (b) glass (c) iron (d) plastic
  2. 2.Which of these needs a waterproof material? (a) a yoga mat (b) a spectacle lens (c) a roof sheet (d) a skipping rope
  3. 3.True or false: a tea flask lining needs a flexible material. (a) True (b) False
  4. 4.🧱 Which property matters most for a hair band? (a) transparent (b) flexible (c) heat insulator (d) waterproof
  5. 5.Which of these needs a heat insulator? (a) a cooking pot handle (b) a yoga mat (c) an umbrella cover (d) a boat hull
  6. 6.Which of these needs a transparent material? (a) an umbrella cover (b) a switch contact (c) a window pane (d) a tea flask lining
  7. 7.🧱 Which property matters most for a magnifier lens? (a) electrical conductor (b) flexible (c) heat insulator (d) transparent
  8. 8.🧱 Which material is best for the core of an electric wire? (a) wood (b) glass (c) rubber (d) copper
  9. 9.🧱 Is aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
  10. 10.🧱 Is brass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  11. 11.🧱 Which property matters most for a switch contact? (a) heat insulator (b) electrical conductor (c) transparent (d) waterproof
  12. 12.🧱 Which property matters most for a boat hull? (a) waterproof (b) transparent (c) electrical conductor (d) heat insulator
  13. 13.🧱 Which material is best for the bars inside concrete? (a) steel (b) glass (c) plastic (d) rubber
  14. 14.🧱 Is iron an electrical conductor or an insulator? (a) a conductor (b) an insulator
  15. 15.Which of these needs a flexible material? (a) a car seat belt (b) the core of a wire (c) a raincoat (d) a cooking pot handle
  16. 16.Which of these needs a flexible material? (a) an oven glove (b) the core of a wire (c) a boat hull (d) a skipping rope
  17. 17.Which of these needs a waterproof material? (a) a raincoat (b) a plug pin (c) a skipping rope (d) a switch contact
  18. 18.🧱 Which material is best for a raincoat? (a) cotton wool (b) cardboard (c) plastic-coated cloth (d) paper
  19. 19.🧱 Is graphite an electrical conductor or an insulator? (a) a conductor (b) an insulator
  20. 20.True or false: the core of a wire needs an electrical conductor. (a) False (b) True
  21. 21.🔍 Which is the odd one out? (a) plastic (b) glass (c) rubber (d) graphite
  22. 22.🧱 Is rubber an electrical conductor or an insulator? (a) a conductor (b) an insulator
  23. 23.🔍 Which is the odd one out? (a) aluminium (b) glass (c) plastic (d) clay pottery
  24. 24.🔍 Which is the odd one out? (a) clay pottery (b) brass (c) dry wood (d) rubber
  25. 25.🧱 Which material is best for a cooking pot handle? (a) copper (b) iron (c) wood or plastic (d) aluminium
  26. 26.True or false: a raincoat needs a waterproof material. (a) True (b) False
  27. 27.🔍 Which is the odd one out? (a) aluminium (b) steel (c) glass (d) copper
  28. 28.Which of these needs a heat insulator? (a) a tea flask lining (b) a switch contact (c) a car windscreen (d) a yoga mat
  29. 29.🧱 Is glass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  30. 30.Which of these needs a flexible material? (a) an oven glove (b) a car windscreen (c) a switch contact (d) a hair band
  31. 31.🧱 Which property matters most for a water tank? (a) heat insulator (b) waterproof (c) transparent (d) flexible
  32. 32.🔍 Which is the odd one out? (a) brass (b) graphite (c) aluminium (d) plastic
  33. 33.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  34. 34.True or false: an umbrella cover needs an electrical conductor. (a) True (b) False
  35. 35.🔍 Which is the odd one out? (a) copper (b) dry wood (c) steel (d) graphite
  36. 36.True or false: a window pane needs a transparent material. (a) True (b) False
  37. 37.🧱 Which property matters most for a skipping rope? (a) transparent (b) electrical conductor (c) flexible (d) waterproof
  38. 38.Which of these needs a heat insulator? (a) a water tank (b) a hair band (c) an oven glove (d) a spectacle lens
  39. 39.🧱 Which property matters most for an oven glove? (a) transparent (b) flexible (c) heat insulator (d) waterproof
  40. 40.🔍 Which is the odd one out? (a) glass (b) steel (c) plastic (d) dry wood

Answer key

  1. iron
  2. a roof sheet
  3. False
  4. flexible
  5. a cooking pot handle
  6. a window pane
  7. transparent
  8. copper
  9. a conductor
  10. a conductor
  11. electrical conductor
  12. waterproof
  13. steel
  14. a conductor
  15. a car seat belt
  16. a skipping rope
  17. a raincoat
  18. plastic-coated cloth
  19. a conductor
  20. True
  21. graphite
  22. an insulator
  23. aluminium
  24. brass
  25. wood or plastic
  26. True
  27. glass
  28. a tea flask lining
  29. an insulator
  30. a hair band
  31. waterproof
  32. plastic
  33. a conductor
  34. False
  35. dry wood
  36. True
  37. flexible
  38. an oven glove
  39. heat insulator
  40. steel

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