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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 332 · 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 property matters most for a raincoat? (a) flexible (b) heat insulator (c) waterproof (d) electrical conductor
  2. 2.🧱 Is rubber an electrical conductor or an insulator? (a) a conductor (b) an insulator
  3. 3.True or false: a yoga mat needs a transparent material. (a) False (b) True
  4. 4.🧱 Which material is best for a cooking pot handle? (a) iron (b) aluminium (c) wood or plastic (d) copper
  5. 5.🔍 Which is the odd one out? (a) plastic (b) clay pottery (c) copper (d) dry wood
  6. 6.True or false: a water tank needs a waterproof material. (a) False (b) True
  7. 7.True or false: a hair band needs a waterproof material. (a) False (b) True
  8. 8.True or false: a window pane needs a waterproof material. (a) True (b) False
  9. 9.Which of these needs a flexible material? (a) a skipping rope (b) a tea flask lining (c) a window pane (d) a spectacle lens
  10. 10.🧱 Which material is best for a window pane? (a) brick (b) steel (c) wood (d) glass
  11. 11.🧱 Is dry wood an electrical conductor or an insulator? (a) a conductor (b) an insulator
  12. 12.True or false: a raincoat needs a heat insulator. (a) True (b) False
  13. 13.Which of these needs an electrical conductor? (a) a plug pin (b) a cooking pot handle (c) a window pane (d) a raincoat
  14. 14.🧱 Which property matters most for a car windscreen? (a) flexible (b) transparent (c) electrical conductor (d) waterproof
  15. 15.🔍 Which is the odd one out? (a) copper (b) graphite (c) cotton cloth (d) aluminium
  16. 16.🧱 Which material is best for the core of an electric wire? (a) wood (b) rubber (c) glass (d) copper
  17. 17.🔍 Which is the odd one out? (a) iron (b) plastic (c) aluminium (d) steel
  18. 18.Which of these needs a waterproof material? (a) a cooking pot handle (b) a magnifier lens (c) an umbrella cover (d) a switch contact
  19. 19.True or false: a hair band needs a flexible material. (a) True (b) False
  20. 20.Which of these needs a transparent material? (a) an umbrella cover (b) a car windscreen (c) the core of a wire (d) a raincoat
  21. 21.🧱 Which property matters most for the core of a wire? (a) waterproof (b) transparent (c) heat insulator (d) electrical conductor
  22. 22.🔍 Which is the odd one out? (a) steel (b) iron (c) copper (d) dry wood
  23. 23.🧱 Which property matters most for a water tank? (a) flexible (b) heat insulator (c) waterproof (d) transparent
  24. 24.True or false: a roof sheet needs an electrical conductor. (a) True (b) False
  25. 25.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  26. 26.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  27. 27.Which of these needs a waterproof material? (a) a boat hull (b) a car windscreen (c) a car seat belt (d) a switch contact
  28. 28.🧱 Which material is best for a raincoat? (a) plastic-coated cloth (b) paper (c) cardboard (d) cotton wool
  29. 29.🔍 Which is the odd one out? (a) plastic (b) dry wood (c) cotton cloth (d) brass
  30. 30.🔍 Which is the odd one out? (a) rubber (b) dry wood (c) cotton cloth (d) aluminium
  31. 31.🧱 Which property matters most for a skipping rope? (a) flexible (b) waterproof (c) heat insulator (d) transparent
  32. 32.Which of these needs an electrical conductor? (a) an oven glove (b) the core of a wire (c) a water tank (d) an umbrella cover
  33. 33.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
  34. 34.🧱 Which property matters most for a roof sheet? (a) electrical conductor (b) waterproof (c) transparent (d) flexible
  35. 35.🧱 Which property matters most for an oven glove? (a) transparent (b) electrical conductor (c) waterproof (d) heat insulator
  36. 36.True or false: an oven glove needs a heat insulator. (a) False (b) True
  37. 37.True or false: a yoga mat needs an electrical conductor. (a) True (b) False
  38. 38.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  39. 39.True or false: a car seat belt needs a flexible material. (a) False (b) True
  40. 40.🧱 Which property matters most for an umbrella cover? (a) electrical conductor (b) flexible (c) waterproof (d) transparent

Answer key

  1. waterproof
  2. an insulator
  3. False
  4. wood or plastic
  5. copper
  6. True
  7. False
  8. False
  9. a skipping rope
  10. glass
  11. an insulator
  12. False
  13. a plug pin
  14. transparent
  15. cotton cloth
  16. copper
  17. plastic
  18. an umbrella cover
  19. True
  20. a car windscreen
  21. electrical conductor
  22. dry wood
  23. waterproof
  24. False
  25. a conductor
  26. a conductor
  27. a boat hull
  28. plastic-coated cloth
  29. brass
  30. aluminium
  31. flexible
  32. the core of a wire
  33. an insulator
  34. waterproof
  35. heat insulator
  36. True
  37. False
  38. a conductor
  39. True
  40. waterproof

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