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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 979 · 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 an oven glove? (a) flexible (b) waterproof (c) heat insulator (d) electrical conductor
  2. 2.🧱 Is steel an electrical conductor or an insulator? (a) a conductor (b) an insulator
  3. 3.🔍 Which is the odd one out? (a) clay pottery (b) graphite (c) steel (d) iron
  4. 4.Which of these needs a waterproof material? (a) a water tank (b) a window pane (c) a yoga mat (d) an oven glove
  5. 5.🧱 Which property matters most for a car windscreen? (a) transparent (b) waterproof (c) electrical conductor (d) flexible
  6. 6.🧱 Which property matters most for a skipping rope? (a) heat insulator (b) waterproof (c) transparent (d) flexible
  7. 7.🧱 Which material is best for the bars inside concrete? (a) glass (b) plastic (c) rubber (d) steel
  8. 8.🧱 Which material is best for the core of an electric wire? (a) wood (b) copper (c) glass (d) rubber
  9. 9.🔍 Which is the odd one out? (a) clay pottery (b) dry wood (c) rubber (d) copper
  10. 10.🧱 Which property matters most for an umbrella cover? (a) transparent (b) waterproof (c) flexible (d) electrical conductor
  11. 11.🔍 Which is the odd one out? (a) brass (b) copper (c) plastic (d) iron
  12. 12.🔍 Which is the odd one out? (a) iron (b) clay pottery (c) glass (d) plastic
  13. 13.True or false: an oven glove needs an electrical conductor. (a) True (b) False
  14. 14.🧱 Which property matters most for a cooking pot handle? (a) transparent (b) heat insulator (c) waterproof (d) electrical conductor
  15. 15.🧱 Is dry wood an electrical conductor or an insulator? (a) an insulator (b) a conductor
  16. 16.🧱 Which property matters most for the core of a wire? (a) electrical conductor (b) transparent (c) heat insulator (d) waterproof
  17. 17.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  18. 18.True or false: a hair band needs a heat insulator. (a) True (b) False
  19. 19.True or false: a car seat belt needs an electrical conductor. (a) True (b) False
  20. 20.🧱 Is plastic an electrical conductor or an insulator? (a) an insulator (b) a conductor
  21. 21.True or false: an oven glove needs a transparent material. (a) True (b) False
  22. 22.True or false: a cooking pot handle needs a waterproof material. (a) False (b) True
  23. 23.True or false: a window pane needs a transparent material. (a) False (b) True
  24. 24.🧱 Which material is best for a window pane? (a) brick (b) glass (c) wood (d) steel
  25. 25.🧱 Which material is best for a raincoat? (a) cotton wool (b) paper (c) cardboard (d) plastic-coated cloth
  26. 26.🧱 Which property matters most for a boat hull? (a) waterproof (b) electrical conductor (c) flexible (d) transparent
  27. 27.🔍 Which is the odd one out? (a) cotton cloth (b) aluminium (c) plastic (d) rubber
  28. 28.🧱 Which property matters most for a car seat belt? (a) flexible (b) transparent (c) heat insulator (d) waterproof
  29. 29.True or false: a hair band needs a transparent material. (a) True (b) False
  30. 30.🧱 Which property matters most for a switch contact? (a) transparent (b) waterproof (c) flexible (d) electrical conductor
  31. 31.🧱 Is glass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  32. 32.🧱 Which property matters most for a yoga mat? (a) waterproof (b) flexible (c) electrical conductor (d) transparent
  33. 33.True or false: a boat hull needs a transparent material. (a) True (b) False
  34. 34.True or false: a skipping rope needs a flexible material. (a) True (b) False
  35. 35.🧱 Which material is best for a cooking pot handle? (a) aluminium (b) wood or plastic (c) iron (d) copper
  36. 36.Which of these needs a transparent material? (a) a water tank (b) an oven glove (c) a spectacle lens (d) a skipping rope
  37. 37.True or false: a magnifier lens needs a heat insulator. (a) True (b) False
  38. 38.🧱 Which property matters most for a water tank? (a) flexible (b) heat insulator (c) waterproof (d) electrical conductor
  39. 39.Which of these needs a flexible material? (a) a yoga mat (b) a tea flask lining (c) a plug pin (d) a water tank
  40. 40.🧱 Is brass an electrical conductor or an insulator? (a) an insulator (b) a conductor

Answer key

  1. heat insulator
  2. a conductor
  3. clay pottery
  4. a water tank
  5. transparent
  6. flexible
  7. steel
  8. copper
  9. copper
  10. waterproof
  11. plastic
  12. iron
  13. False
  14. heat insulator
  15. an insulator
  16. electrical conductor
  17. a conductor
  18. False
  19. False
  20. an insulator
  21. False
  22. False
  23. True
  24. glass
  25. plastic-coated cloth
  26. waterproof
  27. aluminium
  28. flexible
  29. False
  30. electrical conductor
  31. an insulator
  32. flexible
  33. False
  34. True
  35. wood or plastic
  36. a spectacle lens
  37. False
  38. waterproof
  39. a yoga mat
  40. a conductor

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