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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 805 · 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 spectacle lens (b) a cooking pot handle (c) a raincoat (d) a car seat belt
  2. 2.Which of these needs a transparent material? (a) a tea flask lining (b) a window pane (c) a water tank (d) a cooking pot handle
  3. 3.🔍 Which is the odd one out? (a) iron (b) brass (c) copper (d) dry wood
  4. 4.True or false: a boat hull needs a waterproof material. (a) False (b) True
  5. 5.🧱 Is glass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  6. 6.🧱 Which material is best for the bars inside concrete? (a) rubber (b) steel (c) plastic (d) glass
  7. 7.True or false: a water tank needs a heat insulator. (a) False (b) True
  8. 8.🔍 Which is the odd one out? (a) copper (b) dry wood (c) cotton cloth (d) clay pottery
  9. 9.🧱 Which property matters most for a hair band? (a) electrical conductor (b) transparent (c) flexible (d) waterproof
  10. 10.🧱 Which property matters most for a car windscreen? (a) flexible (b) electrical conductor (c) heat insulator (d) transparent
  11. 11.True or false: a roof sheet needs a heat insulator. (a) True (b) False
  12. 12.Which of these needs an electrical conductor? (a) a plug pin (b) an oven glove (c) a hair band (d) a magnifier lens
  13. 13.🧱 Which material is best for a cooking pot handle? (a) copper (b) iron (c) aluminium (d) wood or plastic
  14. 14.Which of these needs a heat insulator? (a) an oven glove (b) a switch contact (c) an umbrella cover (d) a water tank
  15. 15.🧱 Which property matters most for a water tank? (a) transparent (b) flexible (c) waterproof (d) heat insulator
  16. 16.Which of these needs a transparent material? (a) the core of a wire (b) a spectacle lens (c) a tea flask lining (d) a cooking pot handle
  17. 17.Which of these needs a flexible material? (a) a plug pin (b) an umbrella cover (c) a skipping rope (d) a water tank
  18. 18.Which of these needs an electrical conductor? (a) a switch contact (b) a water tank (c) a car seat belt (d) a hair band
  19. 19.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
  20. 20.Which of these needs a flexible material? (a) a boat hull (b) a car seat belt (c) a raincoat (d) a spectacle lens
  21. 21.🔍 Which is the odd one out? (a) aluminium (b) brass (c) cotton cloth (d) graphite
  22. 22.Which of these needs a waterproof material? (a) a window pane (b) a skipping rope (c) a plug pin (d) an umbrella cover
  23. 23.🧱 Which property matters most for a skipping rope? (a) flexible (b) heat insulator (c) electrical conductor (d) transparent
  24. 24.True or false: a skipping rope needs a heat insulator. (a) True (b) False
  25. 25.🔍 Which is the odd one out? (a) copper (b) graphite (c) rubber (d) iron
  26. 26.Which of these needs a flexible material? (a) a switch contact (b) the core of a wire (c) a boat hull (d) a yoga mat
  27. 27.🧱 Which material is best for a raincoat? (a) cardboard (b) plastic-coated cloth (c) cotton wool (d) paper
  28. 28.🔍 Which is the odd one out? (a) dry wood (b) graphite (c) cotton cloth (d) rubber
  29. 29.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  30. 30.True or false: a car windscreen needs an electrical conductor. (a) False (b) True
  31. 31.🧱 Is dry wood an electrical conductor or an insulator? (a) an insulator (b) a conductor
  32. 32.🔍 Which is the odd one out? (a) copper (b) plastic (c) brass (d) aluminium
  33. 33.Which of these needs a transparent material? (a) a car seat belt (b) a car windscreen (c) an umbrella cover (d) a boat hull
  34. 34.🧱 Which property matters most for a roof sheet? (a) flexible (b) waterproof (c) heat insulator (d) transparent
  35. 35.🧱 Which property matters most for a raincoat? (a) heat insulator (b) waterproof (c) transparent (d) flexible
  36. 36.Which of these needs a heat insulator? (a) a cooking pot handle (b) a switch contact (c) a plug pin (d) a skipping rope
  37. 37.🧱 Which property matters most for a yoga mat? (a) transparent (b) waterproof (c) flexible (d) electrical conductor
  38. 38.🧱 Which property matters most for a spectacle lens? (a) heat insulator (b) waterproof (c) transparent (d) electrical conductor
  39. 39.Which of these needs a heat insulator? (a) a boat hull (b) a switch contact (c) a tea flask lining (d) a hair band
  40. 40.Which of these needs a waterproof material? (a) an oven glove (b) a plug pin (c) a roof sheet (d) a car windscreen

Answer key

  1. a raincoat
  2. a window pane
  3. dry wood
  4. True
  5. an insulator
  6. steel
  7. False
  8. copper
  9. flexible
  10. transparent
  11. False
  12. a plug pin
  13. wood or plastic
  14. an oven glove
  15. waterproof
  16. a spectacle lens
  17. a skipping rope
  18. a switch contact
  19. a conductor
  20. a car seat belt
  21. cotton cloth
  22. an umbrella cover
  23. flexible
  24. False
  25. rubber
  26. a yoga mat
  27. plastic-coated cloth
  28. graphite
  29. a conductor
  30. False
  31. an insulator
  32. plastic
  33. a car windscreen
  34. waterproof
  35. waterproof
  36. a cooking pot handle
  37. flexible
  38. transparent
  39. a tea flask lining
  40. a roof sheet

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