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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 929 · 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 plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
  2. 2.🧱 Is aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
  3. 3.True or false: a water tank needs a transparent material. (a) False (b) True
  4. 4.🔍 Which is the odd one out? (a) copper (b) aluminium (c) brass (d) rubber
  5. 5.🧱 Which material is best for a raincoat? (a) cotton wool (b) cardboard (c) paper (d) plastic-coated cloth
  6. 6.Which of these needs a flexible material? (a) a hair band (b) a raincoat (c) an oven glove (d) a spectacle lens
  7. 7.🧱 Which property matters most for a skipping rope? (a) electrical conductor (b) waterproof (c) transparent (d) flexible
  8. 8.Which of these needs a transparent material? (a) a raincoat (b) a magnifier lens (c) a water tank (d) a boat hull
  9. 9.True or false: a skipping rope needs a flexible material. (a) False (b) True
  10. 10.🧱 Is clay pottery an electrical conductor or an insulator? (a) an insulator (b) a conductor
  11. 11.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  12. 12.Which of these needs a waterproof material? (a) a hair band (b) the core of a wire (c) a tea flask lining (d) an umbrella cover
  13. 13.🧱 Is rubber an electrical conductor or an insulator? (a) an insulator (b) a conductor
  14. 14.True or false: a window pane needs a transparent material. (a) True (b) False
  15. 15.🧱 Which property matters most for a boat hull? (a) electrical conductor (b) waterproof (c) flexible (d) heat insulator
  16. 16.🧱 Which material is best for a window pane? (a) steel (b) glass (c) brick (d) wood
  17. 17.True or false: a yoga mat needs a waterproof material. (a) False (b) True
  18. 18.True or false: an umbrella cover needs an electrical conductor. (a) True (b) False
  19. 19.🧱 Which property matters most for a window pane? (a) electrical conductor (b) transparent (c) heat insulator (d) waterproof
  20. 20.True or false: a water tank needs a waterproof material. (a) False (b) True
  21. 21.True or false: an umbrella cover needs a flexible material. (a) True (b) False
  22. 22.🧱 Which material is best for the core of an electric wire? (a) rubber (b) glass (c) wood (d) copper
  23. 23.True or false: a skipping rope needs a waterproof material. (a) False (b) True
  24. 24.Which of these needs an electrical conductor? (a) a yoga mat (b) a cooking pot handle (c) a skipping rope (d) the core of a wire
  25. 25.True or false: a skipping rope needs a transparent material. (a) True (b) False
  26. 26.True or false: the core of a wire needs a waterproof material. (a) True (b) False
  27. 27.Which of these needs a heat insulator? (a) a water tank (b) a raincoat (c) a car windscreen (d) an oven glove
  28. 28.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  29. 29.🔍 Which is the odd one out? (a) copper (b) dry wood (c) plastic (d) cotton cloth
  30. 30.🧱 Which property matters most for an oven glove? (a) electrical conductor (b) flexible (c) transparent (d) heat insulator
  31. 31.🧱 Which property matters most for a water tank? (a) flexible (b) electrical conductor (c) transparent (d) waterproof
  32. 32.🔍 Which is the odd one out? (a) copper (b) dry wood (c) brass (d) iron
  33. 33.True or false: a raincoat needs a waterproof material. (a) False (b) True
  34. 34.True or false: a roof sheet needs a heat insulator. (a) True (b) False
  35. 35.Which of these needs a transparent material? (a) a boat hull (b) a window pane (c) a roof sheet (d) a plug pin
  36. 36.Which of these needs an electrical conductor? (a) a plug pin (b) a skipping rope (c) a car seat belt (d) a yoga mat
  37. 37.🧱 Is brass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  38. 38.True or false: a raincoat needs a transparent material. (a) True (b) False
  39. 39.Which of these needs a transparent material? (a) a skipping rope (b) a switch contact (c) a car windscreen (d) a hair band
  40. 40.Which of these needs a heat insulator? (a) a car seat belt (b) a boat hull (c) a cooking pot handle (d) the core of a wire

Answer key

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

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