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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 633 · 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.True or false: a cooking pot handle needs an electrical conductor. (a) True (b) False
  2. 2.🧱 Which property matters most for the core of a wire? (a) electrical conductor (b) heat insulator (c) flexible (d) waterproof
  3. 3.🧱 Which property matters most for a magnifier lens? (a) heat insulator (b) transparent (c) electrical conductor (d) flexible
  4. 4.True or false: a car seat belt needs a heat insulator. (a) True (b) False
  5. 5.Which of these needs an electrical conductor? (a) the core of a wire (b) a spectacle lens (c) a car seat belt (d) an umbrella cover
  6. 6.🧱 Which material is best for a window pane? (a) wood (b) steel (c) glass (d) brick
  7. 7.Which of these needs a waterproof material? (a) a cooking pot handle (b) the core of a wire (c) a skipping rope (d) an umbrella cover
  8. 8.🔍 Which is the odd one out? (a) steel (b) aluminium (c) copper (d) rubber
  9. 9.Which of these needs a heat insulator? (a) an umbrella cover (b) a tea flask lining (c) a magnifier lens (d) a switch contact
  10. 10.Which of these needs a transparent material? (a) an umbrella cover (b) the core of a wire (c) a window pane (d) a raincoat
  11. 11.🔍 Which is the odd one out? (a) graphite (b) dry wood (c) clay pottery (d) plastic
  12. 12.True or false: a spectacle lens needs a transparent material. (a) True (b) False
  13. 13.Which of these needs a flexible material? (a) a yoga mat (b) the core of a wire (c) an umbrella cover (d) a car windscreen
  14. 14.🧱 Is iron an electrical conductor or an insulator? (a) a conductor (b) an insulator
  15. 15.🧱 Which material is best for the bars inside concrete? (a) plastic (b) rubber (c) steel (d) glass
  16. 16.🧱 Which property matters most for a raincoat? (a) electrical conductor (b) transparent (c) waterproof (d) heat insulator
  17. 17.True or false: a plug pin needs a heat insulator. (a) True (b) False
  18. 18.True or false: a hair band needs a flexible material. (a) False (b) True
  19. 19.🧱 Which property matters most for a car seat belt? (a) electrical conductor (b) waterproof (c) heat insulator (d) flexible
  20. 20.🧱 Is brass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  21. 21.🧱 Which material is best for a raincoat? (a) paper (b) cotton wool (c) cardboard (d) plastic-coated cloth
  22. 22.True or false: a plug pin needs an electrical conductor. (a) True (b) False
  23. 23.🧱 Is copper an electrical conductor or an insulator? (a) a conductor (b) an insulator
  24. 24.Which of these needs an electrical conductor? (a) an oven glove (b) a raincoat (c) a switch contact (d) a yoga mat
  25. 25.True or false: the core of a wire needs a heat insulator. (a) True (b) False
  26. 26.🔍 Which is the odd one out? (a) brass (b) iron (c) clay pottery (d) graphite
  27. 27.🧱 Which property matters most for a spectacle lens? (a) waterproof (b) electrical conductor (c) transparent (d) heat insulator
  28. 28.🔍 Which is the odd one out? (a) rubber (b) clay pottery (c) plastic (d) aluminium
  29. 29.True or false: a yoga mat needs an electrical conductor. (a) True (b) False
  30. 30.🧱 Which property matters most for a window pane? (a) flexible (b) electrical conductor (c) heat insulator (d) transparent
  31. 31.🔍 Which is the odd one out? (a) iron (b) graphite (c) aluminium (d) glass
  32. 32.True or false: the core of a wire needs an electrical conductor. (a) True (b) False
  33. 33.Which of these needs a heat insulator? (a) a boat hull (b) a car windscreen (c) a raincoat (d) an oven glove
  34. 34.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  35. 35.Which of these needs a transparent material? (a) a spectacle lens (b) a tea flask lining (c) a boat hull (d) a skipping rope
  36. 36.Which of these needs a waterproof material? (a) an oven glove (b) a car windscreen (c) a switch contact (d) a raincoat
  37. 37.Which of these needs a heat insulator? (a) a boat hull (b) a magnifier lens (c) a cooking pot handle (d) the core of a wire
  38. 38.🧱 Is rubber an electrical conductor or an insulator? (a) an insulator (b) a conductor
  39. 39.True or false: an oven glove needs a heat insulator. (a) False (b) True
  40. 40.Which of these needs a flexible material? (a) an umbrella cover (b) a plug pin (c) a skipping rope (d) a roof sheet

Answer key

  1. False
  2. electrical conductor
  3. transparent
  4. False
  5. the core of a wire
  6. glass
  7. an umbrella cover
  8. rubber
  9. a tea flask lining
  10. a window pane
  11. graphite
  12. True
  13. a yoga mat
  14. a conductor
  15. steel
  16. waterproof
  17. False
  18. True
  19. flexible
  20. a conductor
  21. plastic-coated cloth
  22. True
  23. a conductor
  24. a switch contact
  25. False
  26. clay pottery
  27. transparent
  28. aluminium
  29. False
  30. transparent
  31. glass
  32. True
  33. an oven glove
  34. a conductor
  35. a spectacle lens
  36. a raincoat
  37. a cooking pot handle
  38. an insulator
  39. True
  40. a skipping rope

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