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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 176 · 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) the core of a wire (b) a spectacle lens (c) a tea flask lining (d) an umbrella cover
  2. 2.🔍 Which is the odd one out? (a) rubber (b) dry wood (c) clay pottery (d) graphite
  3. 3.🧱 Which material is best for a cooking pot handle? (a) wood or plastic (b) copper (c) iron (d) aluminium
  4. 4.🧱 Which material is best for the core of an electric wire? (a) wood (b) copper (c) rubber (d) glass
  5. 5.Which of these needs a heat insulator? (a) a car seat belt (b) a boat hull (c) a plug pin (d) an oven glove
  6. 6.True or false: a skipping rope needs a flexible material. (a) False (b) True
  7. 7.Which of these needs a flexible material? (a) a spectacle lens (b) a switch contact (c) a cooking pot handle (d) a car seat belt
  8. 8.🧱 Which property matters most for a window pane? (a) heat insulator (b) transparent (c) waterproof (d) electrical conductor
  9. 9.🧱 Which property matters most for a roof sheet? (a) waterproof (b) heat insulator (c) flexible (d) transparent
  10. 10.True or false: an oven glove needs a heat insulator. (a) True (b) False
  11. 11.True or false: a magnifier lens needs a waterproof material. (a) True (b) False
  12. 12.True or false: a cooking pot handle needs a transparent material. (a) False (b) True
  13. 13.Which of these needs a flexible material? (a) a yoga mat (b) the core of a wire (c) a roof sheet (d) a window pane
  14. 14.🔍 Which is the odd one out? (a) graphite (b) rubber (c) aluminium (d) steel
  15. 15.Which of these needs a heat insulator? (a) a car windscreen (b) a cooking pot handle (c) a window pane (d) an umbrella cover
  16. 16.🔍 Which is the odd one out? (a) plastic (b) rubber (c) cotton cloth (d) aluminium
  17. 17.True or false: a skipping rope needs a waterproof material. (a) True (b) False
  18. 18.🧱 Which material is best for the bars inside concrete? (a) plastic (b) rubber (c) steel (d) glass
  19. 19.Which of these needs an electrical conductor? (a) a cooking pot handle (b) the core of a wire (c) a magnifier lens (d) a skipping rope
  20. 20.True or false: a window pane needs a waterproof material. (a) True (b) False
  21. 21.🧱 Which property matters most for a tea flask lining? (a) electrical conductor (b) heat insulator (c) flexible (d) waterproof
  22. 22.🧱 Is brass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  23. 23.True or false: a raincoat needs a flexible material. (a) False (b) True
  24. 24.True or false: a hair band needs a heat insulator. (a) True (b) False
  25. 25.🧱 Which property matters most for a boat hull? (a) electrical conductor (b) waterproof (c) transparent (d) flexible
  26. 26.🧱 Is clay pottery an electrical conductor or an insulator? (a) a conductor (b) an insulator
  27. 27.🧱 Which property matters most for a water tank? (a) waterproof (b) flexible (c) heat insulator (d) electrical conductor
  28. 28.True or false: a hair band needs an electrical conductor. (a) False (b) True
  29. 29.True or false: the core of a wire needs an electrical conductor. (a) False (b) True
  30. 30.🧱 Which property matters most for a switch contact? (a) flexible (b) electrical conductor (c) transparent (d) waterproof
  31. 31.True or false: a raincoat needs a waterproof material. (a) True (b) False
  32. 32.🔍 Which is the odd one out? (a) iron (b) brass (c) steel (d) cotton cloth
  33. 33.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  34. 34.🔍 Which is the odd one out? (a) plastic (b) cotton cloth (c) dry wood (d) brass
  35. 35.🧱 Which property matters most for a car seat belt? (a) transparent (b) electrical conductor (c) waterproof (d) flexible
  36. 36.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
  37. 37.Which of these needs a transparent material? (a) a spectacle lens (b) a cooking pot handle (c) a yoga mat (d) an oven glove
  38. 38.True or false: a yoga mat needs an electrical conductor. (a) False (b) True
  39. 39.True or false: a water tank needs a heat insulator. (a) False (b) True
  40. 40.🧱 Which property matters most for a car windscreen? (a) transparent (b) electrical conductor (c) heat insulator (d) waterproof

Answer key

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

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