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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 381 · 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 the bars inside concrete? (a) rubber (b) glass (c) steel (d) plastic
  2. 2.Which of these needs a transparent material? (a) an umbrella cover (b) a window pane (c) a yoga mat (d) a hair band
  3. 3.Which of these needs a heat insulator? (a) an oven glove (b) a water tank (c) a car windscreen (d) a yoga mat
  4. 4.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  5. 5.🧱 Which property matters most for a cooking pot handle? (a) flexible (b) waterproof (c) heat insulator (d) transparent
  6. 6.🧱 Which material is best for a window pane? (a) steel (b) brick (c) wood (d) glass
  7. 7.🔍 Which is the odd one out? (a) brass (b) rubber (c) aluminium (d) copper
  8. 8.🧱 Which property matters most for a tea flask lining? (a) transparent (b) electrical conductor (c) flexible (d) heat insulator
  9. 9.🧱 Is graphite an electrical conductor or an insulator? (a) a conductor (b) an insulator
  10. 10.Which of these needs a flexible material? (a) a magnifier lens (b) a raincoat (c) the core of a wire (d) a car seat belt
  11. 11.🧱 Which material is best for the core of an electric wire? (a) copper (b) glass (c) wood (d) rubber
  12. 12.🧱 Which property matters most for a magnifier lens? (a) waterproof (b) transparent (c) flexible (d) heat insulator
  13. 13.🧱 Is steel an electrical conductor or an insulator? (a) a conductor (b) an insulator
  14. 14.🧱 Which property matters most for a raincoat? (a) electrical conductor (b) transparent (c) waterproof (d) heat insulator
  15. 15.🧱 Which material is best for a raincoat? (a) cotton wool (b) paper (c) cardboard (d) plastic-coated cloth
  16. 16.🔍 Which is the odd one out? (a) graphite (b) dry wood (c) steel (d) aluminium
  17. 17.🔍 Which is the odd one out? (a) plastic (b) steel (c) rubber (d) glass
  18. 18.🧱 Which property matters most for a yoga mat? (a) transparent (b) electrical conductor (c) flexible (d) waterproof
  19. 19.🧱 Is clay pottery an electrical conductor or an insulator? (a) a conductor (b) an insulator
  20. 20.🔍 Which is the odd one out? (a) graphite (b) steel (c) aluminium (d) clay pottery
  21. 21.True or false: an umbrella cover needs a waterproof material. (a) False (b) True
  22. 22.Which of these needs a flexible material? (a) a water tank (b) a raincoat (c) a skipping rope (d) a switch contact
  23. 23.🧱 Is glass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  24. 24.🔍 Which is the odd one out? (a) graphite (b) aluminium (c) steel (d) glass
  25. 25.True or false: a roof sheet needs a flexible material. (a) False (b) True
  26. 26.🧱 Which property matters most for a plug pin? (a) waterproof (b) electrical conductor (c) heat insulator (d) flexible
  27. 27.🧱 Which property matters most for a car seat belt? (a) heat insulator (b) electrical conductor (c) waterproof (d) flexible
  28. 28.🔍 Which is the odd one out? (a) plastic (b) glass (c) copper (d) rubber
  29. 29.True or false: a window pane needs a transparent material. (a) False (b) True
  30. 30.Which of these needs a heat insulator? (a) a magnifier lens (b) a tea flask lining (c) a water tank (d) a yoga mat
  31. 31.True or false: a spectacle lens needs a flexible material. (a) True (b) False
  32. 32.Which of these needs a transparent material? (a) a car seat belt (b) a boat hull (c) a spectacle lens (d) a skipping rope
  33. 33.🧱 Is dry wood an electrical conductor or an insulator? (a) a conductor (b) an insulator
  34. 34.🧱 Which property matters most for a roof sheet? (a) transparent (b) heat insulator (c) electrical conductor (d) waterproof
  35. 35.True or false: a boat hull needs a waterproof material. (a) True (b) False
  36. 36.True or false: a plug pin needs a heat insulator. (a) True (b) False
  37. 37.True or false: the core of a wire needs an electrical conductor. (a) True (b) False
  38. 38.Which of these needs an electrical conductor? (a) a skipping rope (b) the core of a wire (c) a spectacle lens (d) a tea flask lining
  39. 39.True or false: a switch contact needs an electrical conductor. (a) False (b) True
  40. 40.True or false: a boat hull needs an electrical conductor. (a) True (b) False

Answer key

  1. steel
  2. a window pane
  3. an oven glove
  4. a conductor
  5. heat insulator
  6. glass
  7. rubber
  8. heat insulator
  9. a conductor
  10. a car seat belt
  11. copper
  12. transparent
  13. a conductor
  14. waterproof
  15. plastic-coated cloth
  16. dry wood
  17. steel
  18. flexible
  19. an insulator
  20. clay pottery
  21. True
  22. a skipping rope
  23. an insulator
  24. glass
  25. False
  26. electrical conductor
  27. flexible
  28. copper
  29. True
  30. a tea flask lining
  31. False
  32. a spectacle lens
  33. an insulator
  34. waterproof
  35. True
  36. False
  37. True
  38. the core of a wire
  39. True
  40. False

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