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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 651 · 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 material is best for a window pane? (a) steel (b) glass (c) brick (d) wood
  2. 2.🔍 Which is the odd one out? (a) plastic (b) rubber (c) cotton cloth (d) brass
  3. 3.True or false: an umbrella cover needs a waterproof material. (a) False (b) True
  4. 4.🧱 Is graphite an electrical conductor or an insulator? (a) a conductor (b) an insulator
  5. 5.🧱 Is plastic an electrical conductor or an insulator? (a) an insulator (b) a conductor
  6. 6.True or false: a hair band needs a flexible material. (a) False (b) True
  7. 7.🧱 Is rubber an electrical conductor or an insulator? (a) a conductor (b) an insulator
  8. 8.Which of these needs an electrical conductor? (a) a skipping rope (b) a switch contact (c) a cooking pot handle (d) a window pane
  9. 9.True or false: a water tank needs a waterproof material. (a) False (b) True
  10. 10.True or false: a raincoat needs an electrical conductor. (a) True (b) False
  11. 11.Which of these needs an electrical conductor? (a) a car windscreen (b) a plug pin (c) an oven glove (d) a window pane
  12. 12.🧱 Which material is best for a raincoat? (a) cardboard (b) cotton wool (c) paper (d) plastic-coated cloth
  13. 13.Which of these needs a waterproof material? (a) a raincoat (b) an oven glove (c) a tea flask lining (d) a hair band
  14. 14.🧱 Which property matters most for a switch contact? (a) electrical conductor (b) heat insulator (c) waterproof (d) transparent
  15. 15.True or false: a plug pin needs a flexible material. (a) True (b) False
  16. 16.True or false: a boat hull needs a waterproof material. (a) False (b) True
  17. 17.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  18. 18.🧱 Which property matters most for a cooking pot handle? (a) waterproof (b) transparent (c) heat insulator (d) flexible
  19. 19.True or false: a raincoat needs a heat insulator. (a) True (b) False
  20. 20.🧱 Which material is best for the core of an electric wire? (a) glass (b) copper (c) rubber (d) wood
  21. 21.🧱 Which property matters most for a tea flask lining? (a) waterproof (b) transparent (c) heat insulator (d) flexible
  22. 22.🧱 Which property matters most for a boat hull? (a) electrical conductor (b) flexible (c) waterproof (d) heat insulator
  23. 23.🧱 Which property matters most for an oven glove? (a) heat insulator (b) electrical conductor (c) transparent (d) waterproof
  24. 24.🔍 Which is the odd one out? (a) copper (b) rubber (c) aluminium (d) steel
  25. 25.🧱 Which property matters most for a car seat belt? (a) transparent (b) flexible (c) waterproof (d) electrical conductor
  26. 26.Which of these needs an electrical conductor? (a) a roof sheet (b) the core of a wire (c) a cooking pot handle (d) a magnifier lens
  27. 27.Which of these needs a flexible material? (a) a water tank (b) a magnifier lens (c) a roof sheet (d) a skipping rope
  28. 28.🧱 Is dry wood an electrical conductor or an insulator? (a) an insulator (b) a conductor
  29. 29.🧱 Which material is best for the bars inside concrete? (a) rubber (b) plastic (c) glass (d) steel
  30. 30.🧱 Which material is best for a cooking pot handle? (a) iron (b) aluminium (c) copper (d) wood or plastic
  31. 31.Which of these needs a heat insulator? (a) a water tank (b) a cooking pot handle (c) a boat hull (d) a window pane
  32. 32.True or false: a cooking pot handle needs a heat insulator. (a) False (b) True
  33. 33.Which of these needs a waterproof material? (a) a switch contact (b) a cooking pot handle (c) a car seat belt (d) a boat hull
  34. 34.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  35. 35.True or false: a window pane needs a heat insulator. (a) True (b) False
  36. 36.🧱 Which property matters most for a window pane? (a) waterproof (b) flexible (c) transparent (d) heat insulator
  37. 37.True or false: a car windscreen needs a transparent material. (a) False (b) True
  38. 38.True or false: a roof sheet needs a waterproof material. (a) False (b) True
  39. 39.🔍 Which is the odd one out? (a) cotton cloth (b) plastic (c) glass (d) iron
  40. 40.🔍 Which is the odd one out? (a) rubber (b) copper (c) cotton cloth (d) plastic

Answer key

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

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