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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 448 · 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.🧱 Is rubber an electrical conductor or an insulator? (a) a conductor (b) an insulator
  2. 2.🔍 Which is the odd one out? (a) rubber (b) iron (c) glass (d) plastic
  3. 3.🧱 Is glass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  4. 4.🔍 Which is the odd one out? (a) iron (b) copper (c) plastic (d) aluminium
  5. 5.True or false: a roof sheet needs a transparent material. (a) False (b) True
  6. 6.🧱 Which property matters most for a car windscreen? (a) transparent (b) waterproof (c) electrical conductor (d) flexible
  7. 7.🧱 Which material is best for a raincoat? (a) cardboard (b) paper (c) plastic-coated cloth (d) cotton wool
  8. 8.🧱 Is dry wood an electrical conductor or an insulator? (a) a conductor (b) an insulator
  9. 9.🧱 Is graphite an electrical conductor or an insulator? (a) a conductor (b) an insulator
  10. 10.🔍 Which is the odd one out? (a) rubber (b) plastic (c) aluminium (d) clay pottery
  11. 11.Which of these needs a transparent material? (a) a boat hull (b) the core of a wire (c) a car windscreen (d) a tea flask lining
  12. 12.True or false: a water tank needs a waterproof material. (a) False (b) True
  13. 13.True or false: an oven glove needs a heat insulator. (a) False (b) True
  14. 14.🔍 Which is the odd one out? (a) steel (b) aluminium (c) rubber (d) copper
  15. 15.True or false: a magnifier lens needs a flexible material. (a) True (b) False
  16. 16.True or false: a cooking pot handle needs a heat insulator. (a) False (b) True
  17. 17.Which of these needs a waterproof material? (a) a yoga mat (b) a hair band (c) a skipping rope (d) a water tank
  18. 18.True or false: a plug pin needs a flexible material. (a) True (b) False
  19. 19.🧱 Which property matters most for a water tank? (a) waterproof (b) transparent (c) electrical conductor (d) flexible
  20. 20.🧱 Which property matters most for a hair band? (a) flexible (b) waterproof (c) heat insulator (d) electrical conductor
  21. 21.🧱 Which property matters most for the core of a wire? (a) transparent (b) electrical conductor (c) heat insulator (d) waterproof
  22. 22.🧱 Which property matters most for a cooking pot handle? (a) heat insulator (b) waterproof (c) transparent (d) flexible
  23. 23.🧱 Which property matters most for a spectacle lens? (a) electrical conductor (b) transparent (c) flexible (d) waterproof
  24. 24.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  25. 25.Which of these needs a heat insulator? (a) an oven glove (b) a water tank (c) a plug pin (d) a car seat belt
  26. 26.🔍 Which is the odd one out? (a) steel (b) dry wood (c) cotton cloth (d) rubber
  27. 27.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
  28. 28.🧱 Is clay pottery an electrical conductor or an insulator? (a) a conductor (b) an insulator
  29. 29.True or false: a skipping rope needs a flexible material. (a) True (b) False
  30. 30.🔍 Which is the odd one out? (a) iron (b) copper (c) clay pottery (d) aluminium
  31. 31.🧱 Which material is best for the bars inside concrete? (a) plastic (b) rubber (c) steel (d) glass
  32. 32.True or false: the core of a wire needs a transparent material. (a) True (b) False
  33. 33.🧱 Is brass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  34. 34.🔍 Which is the odd one out? (a) iron (b) dry wood (c) steel (d) aluminium
  35. 35.🧱 Which property matters most for a roof sheet? (a) waterproof (b) heat insulator (c) transparent (d) flexible
  36. 36.Which of these needs a heat insulator? (a) a window pane (b) a car windscreen (c) a tea flask lining (d) a magnifier lens
  37. 37.True or false: a raincoat needs a waterproof material. (a) False (b) True
  38. 38.🧱 Which property matters most for a yoga mat? (a) flexible (b) electrical conductor (c) heat insulator (d) transparent
  39. 39.Which of these needs a flexible material? (a) a car seat belt (b) a roof sheet (c) a switch contact (d) a boat hull
  40. 40.🔍 Which is the odd one out? (a) glass (b) rubber (c) cotton cloth (d) brass

Answer key

  1. an insulator
  2. iron
  3. an insulator
  4. plastic
  5. False
  6. transparent
  7. plastic-coated cloth
  8. an insulator
  9. a conductor
  10. aluminium
  11. a car windscreen
  12. True
  13. True
  14. rubber
  15. False
  16. True
  17. a water tank
  18. False
  19. waterproof
  20. flexible
  21. electrical conductor
  22. heat insulator
  23. transparent
  24. a conductor
  25. an oven glove
  26. steel
  27. a conductor
  28. an insulator
  29. True
  30. clay pottery
  31. steel
  32. False
  33. a conductor
  34. dry wood
  35. waterproof
  36. a tea flask lining
  37. True
  38. flexible
  39. a car seat belt
  40. brass

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