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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 205 · 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 transparent material? (a) a spectacle lens (b) a boat hull (c) a switch contact (d) an umbrella cover
  2. 2.🧱 Which material is best for the core of an electric wire? (a) glass (b) copper (c) rubber (d) wood
  3. 3.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  4. 4.🧱 Which property matters most for a cooking pot handle? (a) flexible (b) heat insulator (c) waterproof (d) electrical conductor
  5. 5.🔍 Which is the odd one out? (a) graphite (b) iron (c) dry wood (d) copper
  6. 6.True or false: a magnifier lens needs a transparent material. (a) True (b) False
  7. 7.Which of these needs a transparent material? (a) a tea flask lining (b) an umbrella cover (c) a window pane (d) a yoga mat
  8. 8.🧱 Is brass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  9. 9.True or false: a raincoat needs a waterproof material. (a) False (b) True
  10. 10.🧱 Which material is best for a raincoat? (a) plastic-coated cloth (b) cardboard (c) paper (d) cotton wool
  11. 11.True or false: a boat hull needs a heat insulator. (a) False (b) True
  12. 12.🧱 Which property matters most for a car windscreen? (a) waterproof (b) transparent (c) flexible (d) electrical conductor
  13. 13.🧱 Is graphite an electrical conductor or an insulator? (a) a conductor (b) an insulator
  14. 14.🔍 Which is the odd one out? (a) brass (b) aluminium (c) copper (d) rubber
  15. 15.🧱 Which property matters most for a boat hull? (a) flexible (b) waterproof (c) electrical conductor (d) transparent
  16. 16.🔍 Which is the odd one out? (a) aluminium (b) copper (c) graphite (d) glass
  17. 17.Which of these needs a waterproof material? (a) a car windscreen (b) a car seat belt (c) a raincoat (d) a plug pin
  18. 18.🔍 Which is the odd one out? (a) steel (b) aluminium (c) plastic (d) iron
  19. 19.🧱 Is dry wood an electrical conductor or an insulator? (a) a conductor (b) an insulator
  20. 20.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  21. 21.🧱 Which property matters most for a car seat belt? (a) waterproof (b) heat insulator (c) transparent (d) flexible
  22. 22.🔍 Which is the odd one out? (a) glass (b) cotton cloth (c) brass (d) clay pottery
  23. 23.🧱 Which material is best for a window pane? (a) wood (b) glass (c) steel (d) brick
  24. 24.True or false: an oven glove needs a flexible material. (a) False (b) True
  25. 25.Which of these needs a heat insulator? (a) a window pane (b) a hair band (c) a magnifier lens (d) a cooking pot handle
  26. 26.🔍 Which is the odd one out? (a) copper (b) aluminium (c) steel (d) cotton cloth
  27. 27.True or false: an umbrella cover needs a waterproof material. (a) True (b) False
  28. 28.🧱 Which property matters most for a water tank? (a) transparent (b) heat insulator (c) waterproof (d) flexible
  29. 29.Which of these needs an electrical conductor? (a) a raincoat (b) a yoga mat (c) the core of a wire (d) a car seat belt
  30. 30.Which of these needs an electrical conductor? (a) a car seat belt (b) a plug pin (c) a magnifier lens (d) a roof sheet
  31. 31.True or false: an umbrella cover needs a heat insulator. (a) True (b) False
  32. 32.True or false: an oven glove needs a heat insulator. (a) False (b) True
  33. 33.🔍 Which is the odd one out? (a) cotton cloth (b) glass (c) graphite (d) clay pottery
  34. 34.🧱 Is aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
  35. 35.True or false: a skipping rope needs a heat insulator. (a) True (b) False
  36. 36.Which of these needs a flexible material? (a) a skipping rope (b) a car windscreen (c) an umbrella cover (d) an oven glove
  37. 37.Which of these needs a waterproof material? (a) a window pane (b) an umbrella cover (c) a plug pin (d) a car windscreen
  38. 38.🧱 Is clay pottery an electrical conductor or an insulator? (a) an insulator (b) a conductor
  39. 39.🧱 Is rubber an electrical conductor or an insulator? (a) an insulator (b) a conductor
  40. 40.Which of these needs a flexible material? (a) an oven glove (b) a plug pin (c) a magnifier lens (d) a yoga mat

Answer key

  1. a spectacle lens
  2. copper
  3. a conductor
  4. heat insulator
  5. dry wood
  6. True
  7. a window pane
  8. a conductor
  9. True
  10. plastic-coated cloth
  11. False
  12. transparent
  13. a conductor
  14. rubber
  15. waterproof
  16. glass
  17. a raincoat
  18. plastic
  19. an insulator
  20. a conductor
  21. flexible
  22. brass
  23. glass
  24. False
  25. a cooking pot handle
  26. cotton cloth
  27. True
  28. waterproof
  29. the core of a wire
  30. a plug pin
  31. False
  32. True
  33. graphite
  34. a conductor
  35. False
  36. a skipping rope
  37. an umbrella cover
  38. an insulator
  39. an insulator
  40. a yoga mat

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