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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 717 · 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.True or false: a water tank needs a waterproof material. (a) True (b) False
  2. 2.🔍 Which is the odd one out? (a) glass (b) steel (c) plastic (d) dry wood
  3. 3.True or false: the core of a wire needs a transparent material. (a) True (b) False
  4. 4.🔍 Which is the odd one out? (a) glass (b) dry wood (c) copper (d) rubber
  5. 5.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  6. 6.🧱 Which material is best for a cooking pot handle? (a) iron (b) aluminium (c) copper (d) wood or plastic
  7. 7.🧱 Which property matters most for a window pane? (a) waterproof (b) flexible (c) heat insulator (d) transparent
  8. 8.🧱 Is plastic an electrical conductor or an insulator? (a) an insulator (b) a conductor
  9. 9.🧱 Which property matters most for a skipping rope? (a) heat insulator (b) waterproof (c) flexible (d) transparent
  10. 10.Which of these needs a waterproof material? (a) a roof sheet (b) a car seat belt (c) an oven glove (d) the core of a wire
  11. 11.🧱 Is glass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  12. 12.🧱 Which material is best for the bars inside concrete? (a) rubber (b) glass (c) plastic (d) steel
  13. 13.Which of these needs an electrical conductor? (a) a magnifier lens (b) a spectacle lens (c) a roof sheet (d) the core of a wire
  14. 14.True or false: an oven glove needs a waterproof material. (a) False (b) True
  15. 15.🧱 Which property matters most for a tea flask lining? (a) transparent (b) heat insulator (c) waterproof (d) electrical conductor
  16. 16.True or false: a car seat belt needs a flexible material. (a) False (b) True
  17. 17.🧱 Which property matters most for a raincoat? (a) electrical conductor (b) transparent (c) waterproof (d) flexible
  18. 18.🧱 Which material is best for the core of an electric wire? (a) wood (b) glass (c) rubber (d) copper
  19. 19.🔍 Which is the odd one out? (a) graphite (b) steel (c) iron (d) dry wood
  20. 20.True or false: a car windscreen needs a flexible material. (a) True (b) False
  21. 21.🧱 Which material is best for a raincoat? (a) cardboard (b) cotton wool (c) plastic-coated cloth (d) paper
  22. 22.🧱 Is cotton cloth an electrical conductor or an insulator? (a) a conductor (b) an insulator
  23. 23.True or false: the core of a wire needs an electrical conductor. (a) False (b) True
  24. 24.True or false: a car windscreen needs a transparent material. (a) True (b) False
  25. 25.🧱 Is clay pottery an electrical conductor or an insulator? (a) a conductor (b) an insulator
  26. 26.True or false: an umbrella cover needs a flexible material. (a) False (b) True
  27. 27.Which of these needs a heat insulator? (a) an oven glove (b) a roof sheet (c) an umbrella cover (d) a raincoat
  28. 28.True or false: a window pane needs an electrical conductor. (a) True (b) False
  29. 29.🧱 Which material is best for a window pane? (a) steel (b) wood (c) brick (d) glass
  30. 30.Which of these needs a transparent material? (a) a tea flask lining (b) a yoga mat (c) an oven glove (d) a spectacle lens
  31. 31.Which of these needs a transparent material? (a) a raincoat (b) a window pane (c) an oven glove (d) the core of a wire
  32. 32.True or false: a yoga mat needs an electrical conductor. (a) False (b) True
  33. 33.🧱 Which property matters most for an umbrella cover? (a) heat insulator (b) waterproof (c) electrical conductor (d) transparent
  34. 34.🔍 Which is the odd one out? (a) plastic (b) aluminium (c) steel (d) copper
  35. 35.🧱 Which property matters most for a roof sheet? (a) heat insulator (b) transparent (c) electrical conductor (d) waterproof
  36. 36.🧱 Is dry wood an electrical conductor or an insulator? (a) an insulator (b) a conductor
  37. 37.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  38. 38.🧱 Which property matters most for a magnifier lens? (a) electrical conductor (b) flexible (c) waterproof (d) transparent
  39. 39.True or false: a hair band needs an electrical conductor. (a) True (b) False
  40. 40.Which of these needs a transparent material? (a) a raincoat (b) a plug pin (c) a magnifier lens (d) a skipping rope

Answer key

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

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