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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 78 · 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 cooking pot handle? (a) copper (b) aluminium (c) iron (d) wood or plastic
  2. 2.True or false: a car windscreen needs an electrical conductor. (a) True (b) False
  3. 3.🧱 Is aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
  4. 4.🧱 Which material is best for a window pane? (a) glass (b) steel (c) brick (d) wood
  5. 5.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
  6. 6.🧱 Which material is best for the bars inside concrete? (a) plastic (b) rubber (c) steel (d) glass
  7. 7.True or false: a magnifier lens needs a flexible material. (a) True (b) False
  8. 8.🧱 Which property matters most for a spectacle lens? (a) waterproof (b) electrical conductor (c) transparent (d) heat insulator
  9. 9.🧱 Which property matters most for a car seat belt? (a) electrical conductor (b) waterproof (c) transparent (d) flexible
  10. 10.🧱 Which property matters most for a tea flask lining? (a) flexible (b) heat insulator (c) transparent (d) waterproof
  11. 11.True or false: a switch contact needs an electrical conductor. (a) False (b) True
  12. 12.True or false: a hair band needs a transparent material. (a) False (b) True
  13. 13.True or false: a roof sheet needs a waterproof material. (a) True (b) False
  14. 14.🔍 Which is the odd one out? (a) cotton cloth (b) plastic (c) aluminium (d) rubber
  15. 15.🧱 Which property matters most for an oven glove? (a) transparent (b) electrical conductor (c) heat insulator (d) waterproof
  16. 16.🧱 Which property matters most for a roof sheet? (a) flexible (b) electrical conductor (c) waterproof (d) heat insulator
  17. 17.Which of these needs a flexible material? (a) the core of a wire (b) an umbrella cover (c) a car seat belt (d) a window pane
  18. 18.True or false: a roof sheet needs a flexible material. (a) True (b) False
  19. 19.Which of these needs an electrical conductor? (a) a car seat belt (b) a raincoat (c) a yoga mat (d) a plug pin
  20. 20.True or false: a skipping rope needs an electrical conductor. (a) True (b) False
  21. 21.True or false: a window pane needs a waterproof material. (a) False (b) True
  22. 22.Which of these needs an electrical conductor? (a) the core of a wire (b) a hair band (c) a water tank (d) a raincoat
  23. 23.🧱 Which property matters most for a plug pin? (a) electrical conductor (b) waterproof (c) heat insulator (d) flexible
  24. 24.🧱 Is clay pottery an electrical conductor or an insulator? (a) an insulator (b) a conductor
  25. 25.True or false: a water tank needs a transparent material. (a) False (b) True
  26. 26.True or false: a tea flask lining needs an electrical conductor. (a) True (b) False
  27. 27.Which of these needs a transparent material? (a) a skipping rope (b) a magnifier lens (c) a yoga mat (d) a switch contact
  28. 28.Which of these needs a transparent material? (a) an umbrella cover (b) a switch contact (c) a boat hull (d) a window pane
  29. 29.🧱 Which property matters most for a cooking pot handle? (a) flexible (b) transparent (c) electrical conductor (d) heat insulator
  30. 30.🧱 Which material is best for a raincoat? (a) cardboard (b) cotton wool (c) paper (d) plastic-coated cloth
  31. 31.🧱 Is copper an electrical conductor or an insulator? (a) a conductor (b) an insulator
  32. 32.True or false: a skipping rope needs a flexible material. (a) True (b) False
  33. 33.🧱 Which material is best for the core of an electric wire? (a) glass (b) rubber (c) wood (d) copper
  34. 34.Which of these needs a flexible material? (a) a cooking pot handle (b) a car windscreen (c) a yoga mat (d) a water tank
  35. 35.🧱 Is cotton cloth an electrical conductor or an insulator? (a) a conductor (b) an insulator
  36. 36.🧱 Is dry wood an electrical conductor or an insulator? (a) a conductor (b) an insulator
  37. 37.Which of these needs a waterproof material? (a) a skipping rope (b) a car seat belt (c) a spectacle lens (d) a raincoat
  38. 38.Which of these needs a waterproof material? (a) a yoga mat (b) a hair band (c) a window pane (d) a boat hull
  39. 39.True or false: a cooking pot handle needs an electrical conductor. (a) True (b) False
  40. 40.🔍 Which is the odd one out? (a) steel (b) iron (c) dry wood (d) aluminium

Answer key

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

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