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Engineering Worksheet: Materials

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

Answer key

  1. an umbrella cover
  2. plastic-coated cloth
  3. a roof sheet
  4. copper
  5. iron
  6. flexible
  7. a conductor
  8. False
  9. an oven glove
  10. a car seat belt
  11. cotton cloth
  12. steel
  13. electrical conductor
  14. a water tank
  15. a conductor
  16. flexible
  17. a conductor
  18. an insulator
  19. a raincoat
  20. transparent
  21. flexible
  22. graphite
  23. the core of a wire
  24. copper
  25. wood or plastic
  26. True
  27. True
  28. brass
  29. a magnifier lens
  30. glass
  31. a plug pin
  32. an insulator
  33. True
  34. waterproof
  35. True
  36. transparent
  37. a conductor
  38. waterproof
  39. clay pottery
  40. a yoga mat

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