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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 276 · 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 property matters most for a water tank? (a) flexible (b) waterproof (c) heat insulator (d) transparent
  2. 2.🔍 Which is the odd one out? (a) rubber (b) brass (c) steel (d) copper
  3. 3.Which of these needs a waterproof material? (a) the core of a wire (b) a car windscreen (c) a raincoat (d) a tea flask lining
  4. 4.🔍 Which is the odd one out? (a) iron (b) steel (c) copper (d) clay pottery
  5. 5.🧱 Which material is best for a window pane? (a) steel (b) wood (c) glass (d) brick
  6. 6.🧱 Which property matters most for a yoga mat? (a) transparent (b) waterproof (c) heat insulator (d) flexible
  7. 7.Which of these needs an electrical conductor? (a) a skipping rope (b) a magnifier lens (c) a hair band (d) a plug pin
  8. 8.Which of these needs a waterproof material? (a) a cooking pot handle (b) a switch contact (c) a water tank (d) the core of a wire
  9. 9.🔍 Which is the odd one out? (a) copper (b) rubber (c) dry wood (d) clay pottery
  10. 10.True or false: a spectacle lens needs a heat insulator. (a) False (b) True
  11. 11.Which of these needs a transparent material? (a) a magnifier lens (b) a tea flask lining (c) a roof sheet (d) a plug pin
  12. 12.🧱 Which material is best for a raincoat? (a) cotton wool (b) paper (c) cardboard (d) plastic-coated cloth
  13. 13.🧱 Is plastic an electrical conductor or an insulator? (a) an insulator (b) a conductor
  14. 14.Which of these needs a heat insulator? (a) a switch contact (b) a tea flask lining (c) a water tank (d) a hair band
  15. 15.🧱 Which property matters most for an oven glove? (a) heat insulator (b) electrical conductor (c) flexible (d) waterproof
  16. 16.🧱 Which property matters most for a car seat belt? (a) flexible (b) heat insulator (c) waterproof (d) transparent
  17. 17.Which of these needs a waterproof material? (a) an oven glove (b) a boat hull (c) a yoga mat (d) a tea flask lining
  18. 18.Which of these needs a flexible material? (a) an oven glove (b) a yoga mat (c) a water tank (d) a spectacle lens
  19. 19.🧱 Which property matters most for a tea flask lining? (a) flexible (b) electrical conductor (c) heat insulator (d) waterproof
  20. 20.True or false: a magnifier lens needs a flexible material. (a) True (b) False
  21. 21.Which of these needs an electrical conductor? (a) a tea flask lining (b) a yoga mat (c) a car windscreen (d) the core of a wire
  22. 22.True or false: a car seat belt needs a flexible material. (a) False (b) True
  23. 23.Which of these needs a flexible material? (a) a water tank (b) a switch contact (c) an oven glove (d) a hair band
  24. 24.Which of these needs a flexible material? (a) a raincoat (b) a car seat belt (c) a tea flask lining (d) a cooking pot handle
  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 water tank needs a flexible material. (a) False (b) True
  27. 27.True or false: a roof sheet needs a heat insulator. (a) True (b) False
  28. 28.🧱 Is aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
  29. 29.🧱 Is cotton cloth an electrical conductor or an insulator? (a) a conductor (b) an insulator
  30. 30.True or false: a switch contact needs a heat insulator. (a) True (b) False
  31. 31.🔍 Which is the odd one out? (a) dry wood (b) rubber (c) plastic (d) steel
  32. 32.🧱 Which material is best for the bars inside concrete? (a) plastic (b) steel (c) glass (d) rubber
  33. 33.🧱 Which material is best for the core of an electric wire? (a) rubber (b) copper (c) wood (d) glass
  34. 34.🧱 Is graphite an electrical conductor or an insulator? (a) an insulator (b) a conductor
  35. 35.🧱 Which property matters most for a raincoat? (a) heat insulator (b) electrical conductor (c) waterproof (d) transparent
  36. 36.🔍 Which is the odd one out? (a) plastic (b) copper (c) steel (d) brass
  37. 37.True or false: a water tank needs a transparent material. (a) True (b) False
  38. 38.True or false: a car windscreen needs an electrical conductor. (a) True (b) False
  39. 39.🔍 Which is the odd one out? (a) dry wood (b) aluminium (c) cotton cloth (d) glass
  40. 40.True or false: the core of a wire needs an electrical conductor. (a) True (b) False

Answer key

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

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