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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 607 · 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 heat insulator? (a) a car windscreen (b) a spectacle lens (c) a switch contact (d) a cooking pot handle
  2. 2.🧱 Which property matters most for a yoga mat? (a) electrical conductor (b) flexible (c) heat insulator (d) waterproof
  3. 3.Which of these needs a flexible material? (a) a magnifier lens (b) a roof sheet (c) a car seat belt (d) a car windscreen
  4. 4.Which of these needs a heat insulator? (a) a boat hull (b) a car windscreen (c) a tea flask lining (d) an umbrella cover
  5. 5.Which of these needs a transparent material? (a) a roof sheet (b) a window pane (c) a tea flask lining (d) a cooking pot handle
  6. 6.🧱 Which property matters most for a cooking pot handle? (a) waterproof (b) electrical conductor (c) flexible (d) heat insulator
  7. 7.🔍 Which is the odd one out? (a) iron (b) plastic (c) copper (d) aluminium
  8. 8.🧱 Which material is best for a cooking pot handle? (a) iron (b) copper (c) aluminium (d) wood or plastic
  9. 9.True or false: a roof sheet needs a heat insulator. (a) False (b) True
  10. 10.🧱 Which material is best for a raincoat? (a) cardboard (b) cotton wool (c) plastic-coated cloth (d) paper
  11. 11.🧱 Which property matters most for a roof sheet? (a) heat insulator (b) flexible (c) electrical conductor (d) waterproof
  12. 12.🔍 Which is the odd one out? (a) brass (b) plastic (c) cotton cloth (d) clay pottery
  13. 13.True or false: an oven glove needs a heat insulator. (a) True (b) False
  14. 14.🧱 Is brass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  15. 15.🧱 Is iron an electrical conductor or an insulator? (a) a conductor (b) an insulator
  16. 16.🧱 Which property matters most for a car windscreen? (a) waterproof (b) heat insulator (c) transparent (d) electrical conductor
  17. 17.🧱 Is aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
  18. 18.🧱 Which property matters most for a boat hull? (a) transparent (b) flexible (c) waterproof (d) heat insulator
  19. 19.🧱 Which property matters most for the core of a wire? (a) heat insulator (b) flexible (c) electrical conductor (d) transparent
  20. 20.🔍 Which is the odd one out? (a) graphite (b) brass (c) steel (d) cotton cloth
  21. 21.True or false: a water tank needs a waterproof material. (a) True (b) False
  22. 22.True or false: a magnifier lens needs a transparent material. (a) True (b) False
  23. 23.🧱 Is clay pottery an electrical conductor or an insulator? (a) a conductor (b) an insulator
  24. 24.Which of these needs a flexible material? (a) a spectacle lens (b) a cooking pot handle (c) a hair band (d) a tea flask lining
  25. 25.🧱 Which property matters most for a tea flask lining? (a) heat insulator (b) flexible (c) waterproof (d) electrical conductor
  26. 26.True or false: the core of a wire needs an electrical conductor. (a) False (b) True
  27. 27.🧱 Which property matters most for an oven glove? (a) electrical conductor (b) waterproof (c) transparent (d) heat insulator
  28. 28.🔍 Which is the odd one out? (a) brass (b) graphite (c) iron (d) glass
  29. 29.🧱 Is steel an electrical conductor or an insulator? (a) a conductor (b) an insulator
  30. 30.Which of these needs a transparent material? (a) a raincoat (b) a car windscreen (c) a yoga mat (d) the core of a wire
  31. 31.🧱 Which material is best for the bars inside concrete? (a) glass (b) plastic (c) steel (d) rubber
  32. 32.🔍 Which is the odd one out? (a) glass (b) cotton cloth (c) aluminium (d) plastic
  33. 33.Which of these needs an electrical conductor? (a) a tea flask lining (b) a spectacle lens (c) a water tank (d) the core of a wire
  34. 34.🔍 Which is the odd one out? (a) dry wood (b) glass (c) cotton cloth (d) iron
  35. 35.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
  36. 36.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  37. 37.🧱 Which property matters most for a car seat belt? (a) waterproof (b) flexible (c) transparent (d) heat insulator
  38. 38.Which of these needs a transparent material? (a) a magnifier lens (b) a plug pin (c) a tea flask lining (d) a hair band
  39. 39.True or false: an umbrella cover needs a flexible material. (a) False (b) True
  40. 40.🔍 Which is the odd one out? (a) graphite (b) brass (c) iron (d) rubber

Answer key

  1. a cooking pot handle
  2. flexible
  3. a car seat belt
  4. a tea flask lining
  5. a window pane
  6. heat insulator
  7. plastic
  8. wood or plastic
  9. False
  10. plastic-coated cloth
  11. waterproof
  12. brass
  13. True
  14. a conductor
  15. a conductor
  16. transparent
  17. a conductor
  18. waterproof
  19. electrical conductor
  20. cotton cloth
  21. True
  22. True
  23. an insulator
  24. a hair band
  25. heat insulator
  26. True
  27. heat insulator
  28. glass
  29. a conductor
  30. a car windscreen
  31. steel
  32. aluminium
  33. the core of a wire
  34. iron
  35. an insulator
  36. a conductor
  37. flexible
  38. a magnifier lens
  39. False
  40. rubber

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