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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 408 · 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 a window pane? (a) brick (b) steel (c) glass (d) wood
  2. 2.True or false: a yoga mat needs a transparent material. (a) True (b) False
  3. 3.🧱 Which material is best for a cooking pot handle? (a) aluminium (b) copper (c) wood or plastic (d) iron
  4. 4.🧱 Which property matters most for a car seat belt? (a) waterproof (b) flexible (c) transparent (d) heat insulator
  5. 5.True or false: a switch contact needs an electrical conductor. (a) False (b) True
  6. 6.Which of these needs an electrical conductor? (a) a skipping rope (b) a window pane (c) the core of a wire (d) a car seat belt
  7. 7.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  8. 8.True or false: an oven glove needs a transparent material. (a) False (b) True
  9. 9.🧱 Which property matters most for a boat hull? (a) flexible (b) heat insulator (c) electrical conductor (d) waterproof
  10. 10.True or false: a cooking pot handle needs a heat insulator. (a) False (b) True
  11. 11.True or false: a car windscreen needs a heat insulator. (a) False (b) True
  12. 12.🔍 Which is the odd one out? (a) copper (b) plastic (c) clay pottery (d) rubber
  13. 13.Which of these needs a flexible material? (a) a car windscreen (b) an oven glove (c) a tea flask lining (d) a hair band
  14. 14.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
  15. 15.Which of these needs a waterproof material? (a) a skipping rope (b) a water tank (c) a magnifier lens (d) a yoga mat
  16. 16.Which of these needs a flexible material? (a) a yoga mat (b) an oven glove (c) a roof sheet (d) a plug pin
  17. 17.🧱 Which material is best for a raincoat? (a) paper (b) cotton wool (c) plastic-coated cloth (d) cardboard
  18. 18.🧱 Is dry wood an electrical conductor or an insulator? (a) an insulator (b) a conductor
  19. 19.🧱 Which property matters most for a raincoat? (a) transparent (b) waterproof (c) flexible (d) electrical conductor
  20. 20.True or false: a skipping rope needs an electrical conductor. (a) True (b) False
  21. 21.🔍 Which is the odd one out? (a) glass (b) graphite (c) dry wood (d) rubber
  22. 22.🧱 Is rubber an electrical conductor or an insulator? (a) a conductor (b) an insulator
  23. 23.🔍 Which is the odd one out? (a) glass (b) steel (c) brass (d) iron
  24. 24.🧱 Which material is best for the bars inside concrete? (a) glass (b) steel (c) rubber (d) plastic
  25. 25.Which of these needs a transparent material? (a) a tea flask lining (b) the core of a wire (c) a car windscreen (d) a hair band
  26. 26.🧱 Which property matters most for a water tank? (a) waterproof (b) heat insulator (c) transparent (d) flexible
  27. 27.🧱 Which material is best for the core of an electric wire? (a) glass (b) copper (c) wood (d) rubber
  28. 28.True or false: a car seat belt needs a flexible material. (a) True (b) False
  29. 29.🧱 Is brass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  30. 30.True or false: an umbrella cover needs a waterproof material. (a) True (b) False
  31. 31.🧱 Which property matters most for a tea flask lining? (a) flexible (b) transparent (c) waterproof (d) heat insulator
  32. 32.Which of these needs a heat insulator? (a) a hair band (b) a switch contact (c) a skipping rope (d) a tea flask lining
  33. 33.🔍 Which is the odd one out? (a) rubber (b) clay pottery (c) glass (d) iron
  34. 34.🧱 Is glass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  35. 35.🔍 Which is the odd one out? (a) rubber (b) glass (c) dry wood (d) brass
  36. 36.Which of these needs a waterproof material? (a) a switch contact (b) a car windscreen (c) an umbrella cover (d) a spectacle lens
  37. 37.🧱 Which property matters most for a skipping rope? (a) transparent (b) heat insulator (c) electrical conductor (d) flexible
  38. 38.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  39. 39.True or false: a roof sheet needs a transparent material. (a) False (b) True
  40. 40.Which of these needs a heat insulator? (a) the core of a wire (b) a magnifier lens (c) a water tank (d) an oven glove

Answer key

  1. glass
  2. False
  3. wood or plastic
  4. flexible
  5. True
  6. the core of a wire
  7. a conductor
  8. False
  9. waterproof
  10. True
  11. False
  12. copper
  13. a hair band
  14. a conductor
  15. a water tank
  16. a yoga mat
  17. plastic-coated cloth
  18. an insulator
  19. waterproof
  20. False
  21. graphite
  22. an insulator
  23. glass
  24. steel
  25. a car windscreen
  26. waterproof
  27. copper
  28. True
  29. a conductor
  30. True
  31. heat insulator
  32. a tea flask lining
  33. iron
  34. an insulator
  35. brass
  36. an umbrella cover
  37. flexible
  38. a conductor
  39. False
  40. an oven glove

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