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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 293 · 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.🧱 Is steel an electrical conductor or an insulator? (a) a conductor (b) an insulator
  2. 2.🧱 Which property matters most for a hair band? (a) flexible (b) heat insulator (c) transparent (d) waterproof
  3. 3.Which of these needs a heat insulator? (a) a roof sheet (b) a boat hull (c) a yoga mat (d) an oven glove
  4. 4.🧱 Which property matters most for a roof sheet? (a) transparent (b) flexible (c) waterproof (d) heat insulator
  5. 5.🧱 Which material is best for the core of an electric wire? (a) rubber (b) wood (c) glass (d) copper
  6. 6.🧱 Is brass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  7. 7.Which of these needs a transparent material? (a) an oven glove (b) a car seat belt (c) a window pane (d) the core of a wire
  8. 8.🧱 Is iron an electrical conductor or an insulator? (a) a conductor (b) an insulator
  9. 9.🧱 Is rubber an electrical conductor or an insulator? (a) a conductor (b) an insulator
  10. 10.Which of these needs a flexible material? (a) an umbrella cover (b) a cooking pot handle (c) a skipping rope (d) a boat hull
  11. 11.Which of these needs a waterproof material? (a) a raincoat (b) a yoga mat (c) a window pane (d) a hair band
  12. 12.True or false: a boat hull needs a waterproof material. (a) True (b) False
  13. 13.Which of these needs an electrical conductor? (a) the core of a wire (b) a raincoat (c) an oven glove (d) a magnifier lens
  14. 14.True or false: a roof sheet needs a waterproof material. (a) False (b) True
  15. 15.🧱 Which material is best for a raincoat? (a) cardboard (b) paper (c) plastic-coated cloth (d) cotton wool
  16. 16.True or false: a spectacle lens needs a transparent material. (a) True (b) False
  17. 17.🧱 Which material is best for the bars inside concrete? (a) plastic (b) glass (c) steel (d) rubber
  18. 18.🔍 Which is the odd one out? (a) steel (b) graphite (c) rubber (d) copper
  19. 19.True or false: a window pane needs a transparent material. (a) True (b) False
  20. 20.🧱 Which property matters most for a spectacle lens? (a) heat insulator (b) transparent (c) electrical conductor (d) waterproof
  21. 21.Which of these needs a transparent material? (a) a spectacle lens (b) a raincoat (c) a hair band (d) a switch contact
  22. 22.🔍 Which is the odd one out? (a) rubber (b) clay pottery (c) dry wood (d) aluminium
  23. 23.🔍 Which is the odd one out? (a) iron (b) copper (c) aluminium (d) clay pottery
  24. 24.True or false: a skipping rope needs a flexible material. (a) True (b) False
  25. 25.Which of these needs a flexible material? (a) a yoga mat (b) the core of a wire (c) a roof sheet (d) a water tank
  26. 26.🧱 Which property matters most for a car windscreen? (a) flexible (b) heat insulator (c) transparent (d) electrical conductor
  27. 27.🧱 Which material is best for a window pane? (a) steel (b) wood (c) glass (d) brick
  28. 28.🔍 Which is the odd one out? (a) graphite (b) aluminium (c) plastic (d) copper
  29. 29.🔍 Which is the odd one out? (a) dry wood (b) graphite (c) cotton cloth (d) rubber
  30. 30.🔍 Which is the odd one out? (a) rubber (b) glass (c) clay pottery (d) copper
  31. 31.🧱 Which property matters most for a raincoat? (a) transparent (b) heat insulator (c) waterproof (d) electrical conductor
  32. 32.🧱 Which property matters most for a tea flask lining? (a) electrical conductor (b) heat insulator (c) flexible (d) waterproof
  33. 33.🧱 Which property matters most for an umbrella cover? (a) electrical conductor (b) waterproof (c) heat insulator (d) flexible
  34. 34.🧱 Is graphite an electrical conductor or an insulator? (a) an insulator (b) a conductor
  35. 35.True or false: the core of a wire needs an electrical conductor. (a) False (b) True
  36. 36.True or false: a roof sheet needs an electrical conductor. (a) True (b) False
  37. 37.🧱 Which property matters most for the core of a wire? (a) heat insulator (b) electrical conductor (c) flexible (d) waterproof
  38. 38.🧱 Is clay pottery an electrical conductor or an insulator? (a) a conductor (b) an insulator
  39. 39.🧱 Which material is best for a cooking pot handle? (a) aluminium (b) iron (c) wood or plastic (d) copper
  40. 40.🔍 Which is the odd one out? (a) dry wood (b) plastic (c) rubber (d) iron

Answer key

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

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