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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 85 · 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 the core of an electric wire? (a) glass (b) copper (c) rubber (d) wood
  2. 2.True or false: an oven glove needs a waterproof material. (a) False (b) True
  3. 3.True or false: a water tank needs a waterproof material. (a) True (b) False
  4. 4.🧱 Which property matters most for a raincoat? (a) electrical conductor (b) heat insulator (c) waterproof (d) transparent
  5. 5.🧱 Is aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
  6. 6.Which of these needs an electrical conductor? (a) a skipping rope (b) a spectacle lens (c) a plug pin (d) a hair band
  7. 7.🧱 Which property matters most for an umbrella cover? (a) flexible (b) electrical conductor (c) heat insulator (d) waterproof
  8. 8.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
  9. 9.Which of these needs a flexible material? (a) an oven glove (b) an umbrella cover (c) a skipping rope (d) a magnifier lens
  10. 10.🧱 Which material is best for the bars inside concrete? (a) glass (b) steel (c) plastic (d) rubber
  11. 11.🔍 Which is the odd one out? (a) copper (b) cotton cloth (c) iron (d) aluminium
  12. 12.True or false: an oven glove needs an electrical conductor. (a) False (b) True
  13. 13.Which of these needs a transparent material? (a) a yoga mat (b) a water tank (c) a raincoat (d) a window pane
  14. 14.🔍 Which is the odd one out? (a) rubber (b) graphite (c) steel (d) iron
  15. 15.🧱 Which property matters most for a roof sheet? (a) electrical conductor (b) waterproof (c) transparent (d) flexible
  16. 16.🧱 Which property matters most for an oven glove? (a) transparent (b) flexible (c) waterproof (d) heat insulator
  17. 17.True or false: a water tank needs an electrical conductor. (a) True (b) False
  18. 18.🧱 Is cotton cloth an electrical conductor or an insulator? (a) a conductor (b) an insulator
  19. 19.🔍 Which is the odd one out? (a) cotton cloth (b) dry wood (c) brass (d) glass
  20. 20.True or false: an oven glove needs a heat insulator. (a) False (b) True
  21. 21.🧱 Which material is best for a raincoat? (a) plastic-coated cloth (b) cardboard (c) paper (d) cotton wool
  22. 22.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  23. 23.🧱 Which property matters most for a skipping rope? (a) electrical conductor (b) transparent (c) flexible (d) waterproof
  24. 24.🧱 Is dry wood an electrical conductor or an insulator? (a) a conductor (b) an insulator
  25. 25.🧱 Is graphite an electrical conductor or an insulator? (a) an insulator (b) a conductor
  26. 26.🧱 Which property matters most for a hair band? (a) waterproof (b) transparent (c) flexible (d) electrical conductor
  27. 27.Which of these needs a flexible material? (a) a roof sheet (b) a switch contact (c) a yoga mat (d) a plug pin
  28. 28.Which of these needs an electrical conductor? (a) a tea flask lining (b) a raincoat (c) a spectacle lens (d) a switch contact
  29. 29.True or false: a window pane needs a heat insulator. (a) False (b) True
  30. 30.True or false: the core of a wire needs an electrical conductor. (a) False (b) True
  31. 31.True or false: a water tank needs a flexible material. (a) True (b) False
  32. 32.🧱 Which property matters most for a cooking pot handle? (a) heat insulator (b) transparent (c) flexible (d) waterproof
  33. 33.🔍 Which is the odd one out? (a) dry wood (b) copper (c) plastic (d) clay pottery
  34. 34.Which of these needs a waterproof material? (a) a plug pin (b) a roof sheet (c) a car seat belt (d) the core of a wire
  35. 35.🧱 Is clay pottery an electrical conductor or an insulator? (a) a conductor (b) an insulator
  36. 36.🧱 Is brass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  37. 37.Which of these needs a waterproof material? (a) a raincoat (b) the core of a wire (c) a switch contact (d) a hair band
  38. 38.🧱 Which material is best for a window pane? (a) brick (b) glass (c) steel (d) wood
  39. 39.🧱 Which property matters most for the core of a wire? (a) heat insulator (b) electrical conductor (c) waterproof (d) transparent
  40. 40.Which of these needs a transparent material? (a) a water tank (b) a switch contact (c) a car windscreen (d) a roof sheet

Answer key

  1. copper
  2. False
  3. True
  4. waterproof
  5. a conductor
  6. a plug pin
  7. waterproof
  8. an insulator
  9. a skipping rope
  10. steel
  11. cotton cloth
  12. False
  13. a window pane
  14. rubber
  15. waterproof
  16. heat insulator
  17. False
  18. an insulator
  19. brass
  20. True
  21. plastic-coated cloth
  22. a conductor
  23. flexible
  24. an insulator
  25. a conductor
  26. flexible
  27. a yoga mat
  28. a switch contact
  29. False
  30. True
  31. False
  32. heat insulator
  33. copper
  34. a roof sheet
  35. an insulator
  36. a conductor
  37. a raincoat
  38. glass
  39. electrical conductor
  40. a car windscreen

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