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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 876 · 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 material is best for a raincoat? (a) cardboard (b) plastic-coated cloth (c) cotton wool (d) paper
  2. 2.🧱 Which property matters most for a magnifier lens? (a) flexible (b) transparent (c) electrical conductor (d) heat insulator
  3. 3.Which of these needs an electrical conductor? (a) a hair band (b) a water tank (c) a car seat belt (d) a plug pin
  4. 4.🧱 Is cotton cloth an electrical conductor or an insulator? (a) an insulator (b) a conductor
  5. 5.🧱 Is clay pottery an electrical conductor or an insulator? (a) an insulator (b) a conductor
  6. 6.True or false: a roof sheet needs an electrical conductor. (a) True (b) False
  7. 7.🔍 Which is the odd one out? (a) graphite (b) iron (c) rubber (d) brass
  8. 8.True or false: a boat hull needs a waterproof material. (a) False (b) True
  9. 9.🧱 Which property matters most for a boat hull? (a) flexible (b) transparent (c) heat insulator (d) waterproof
  10. 10.🧱 Is glass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  11. 11.🔍 Which is the odd one out? (a) aluminium (b) graphite (c) dry wood (d) steel
  12. 12.🔍 Which is the odd one out? (a) plastic (b) dry wood (c) brass (d) clay pottery
  13. 13.🧱 Which material is best for a cooking pot handle? (a) copper (b) wood or plastic (c) iron (d) aluminium
  14. 14.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
  15. 15.Which of these needs a heat insulator? (a) a hair band (b) a plug pin (c) a yoga mat (d) a cooking pot handle
  16. 16.🧱 Which property matters most for a hair band? (a) transparent (b) flexible (c) waterproof (d) electrical conductor
  17. 17.Which of these needs a transparent material? (a) a boat hull (b) a car seat belt (c) a car windscreen (d) a skipping rope
  18. 18.Which of these needs a transparent material? (a) the core of a wire (b) a water tank (c) a boat hull (d) a magnifier lens
  19. 19.🧱 Which property matters most for a skipping rope? (a) flexible (b) heat insulator (c) transparent (d) electrical conductor
  20. 20.True or false: a skipping rope needs a flexible material. (a) False (b) True
  21. 21.True or false: a plug pin needs a waterproof material. (a) False (b) True
  22. 22.🧱 Which property matters most for a water tank? (a) transparent (b) electrical conductor (c) waterproof (d) heat insulator
  23. 23.Which of these needs a flexible material? (a) a roof sheet (b) a water tank (c) a skipping rope (d) an oven glove
  24. 24.🧱 Which property matters most for the core of a wire? (a) electrical conductor (b) transparent (c) waterproof (d) flexible
  25. 25.Which of these needs a waterproof material? (a) a yoga mat (b) a window pane (c) a water tank (d) a cooking pot handle
  26. 26.🧱 Is iron an electrical conductor or an insulator? (a) a conductor (b) an insulator
  27. 27.🧱 Which material is best for the core of an electric wire? (a) copper (b) rubber (c) wood (d) glass
  28. 28.🧱 Which property matters most for an umbrella cover? (a) transparent (b) heat insulator (c) waterproof (d) electrical conductor
  29. 29.Which of these needs a waterproof material? (a) a tea flask lining (b) a roof sheet (c) a plug pin (d) a window pane
  30. 30.Which of these needs a transparent material? (a) a boat hull (b) a water tank (c) an umbrella cover (d) a spectacle lens
  31. 31.True or false: a raincoat needs a waterproof material. (a) True (b) False
  32. 32.Which of these needs a waterproof material? (a) a hair band (b) an oven glove (c) an umbrella cover (d) a spectacle lens
  33. 33.Which of these needs an electrical conductor? (a) a switch contact (b) a car seat belt (c) a car windscreen (d) a yoga mat
  34. 34.🧱 Which property matters most for a cooking pot handle? (a) transparent (b) heat insulator (c) waterproof (d) flexible
  35. 35.True or false: a car windscreen needs a transparent material. (a) False (b) True
  36. 36.Which of these needs a heat insulator? (a) a roof sheet (b) a window pane (c) an oven glove (d) a car seat belt
  37. 37.🧱 Is rubber an electrical conductor or an insulator? (a) a conductor (b) an insulator
  38. 38.🔍 Which is the odd one out? (a) steel (b) cotton cloth (c) graphite (d) copper
  39. 39.True or false: the core of a wire needs an electrical conductor. (a) False (b) True
  40. 40.🧱 Which property matters most for a car windscreen? (a) electrical conductor (b) waterproof (c) flexible (d) transparent

Answer key

  1. plastic-coated cloth
  2. transparent
  3. a plug pin
  4. an insulator
  5. an insulator
  6. False
  7. rubber
  8. True
  9. waterproof
  10. an insulator
  11. dry wood
  12. brass
  13. wood or plastic
  14. an insulator
  15. a cooking pot handle
  16. flexible
  17. a car windscreen
  18. a magnifier lens
  19. flexible
  20. True
  21. False
  22. waterproof
  23. a skipping rope
  24. electrical conductor
  25. a water tank
  26. a conductor
  27. copper
  28. waterproof
  29. a roof sheet
  30. a spectacle lens
  31. True
  32. an umbrella cover
  33. a switch contact
  34. heat insulator
  35. True
  36. an oven glove
  37. an insulator
  38. cotton cloth
  39. True
  40. transparent

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