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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 930 · 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 flexible material? (a) a tea flask lining (b) a cooking pot handle (c) a hair band (d) an oven glove
  2. 2.🧱 Which material is best for the core of an electric wire? (a) copper (b) wood (c) glass (d) rubber
  3. 3.Which of these needs a flexible material? (a) a water tank (b) a yoga mat (c) an umbrella cover (d) a magnifier lens
  4. 4.True or false: a cooking pot handle needs an electrical conductor. (a) True (b) False
  5. 5.Which of these needs a transparent material? (a) a plug pin (b) a raincoat (c) a roof sheet (d) a spectacle lens
  6. 6.🧱 Which material is best for a cooking pot handle? (a) iron (b) aluminium (c) wood or plastic (d) copper
  7. 7.🧱 Is clay pottery an electrical conductor or an insulator? (a) an insulator (b) a conductor
  8. 8.🧱 Which property matters most for a roof sheet? (a) electrical conductor (b) flexible (c) waterproof (d) heat insulator
  9. 9.True or false: a water tank needs a heat insulator. (a) True (b) False
  10. 10.🧱 Which material is best for a raincoat? (a) paper (b) cotton wool (c) plastic-coated cloth (d) cardboard
  11. 11.True or false: a yoga mat needs a waterproof material. (a) True (b) False
  12. 12.🔍 Which is the odd one out? (a) rubber (b) copper (c) steel (d) iron
  13. 13.Which of these needs a transparent material? (a) a boat hull (b) a window pane (c) a water tank (d) a car seat belt
  14. 14.🧱 Which property matters most for a tea flask lining? (a) flexible (b) electrical conductor (c) heat insulator (d) transparent
  15. 15.Which of these needs a flexible material? (a) the core of a wire (b) a raincoat (c) a skipping rope (d) a cooking pot handle
  16. 16.Which of these needs an electrical conductor? (a) an oven glove (b) a skipping rope (c) a boat hull (d) a switch contact
  17. 17.True or false: a boat hull needs a flexible material. (a) False (b) True
  18. 18.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  19. 19.🧱 Is brass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  20. 20.🔍 Which is the odd one out? (a) copper (b) graphite (c) steel (d) clay pottery
  21. 21.True or false: a plug pin needs a waterproof material. (a) False (b) True
  22. 22.🔍 Which is the odd one out? (a) copper (b) brass (c) cotton cloth (d) aluminium
  23. 23.🧱 Which material is best for a window pane? (a) steel (b) brick (c) wood (d) glass
  24. 24.Which of these needs an electrical conductor? (a) the core of a wire (b) a car seat belt (c) a car windscreen (d) a window pane
  25. 25.🧱 Which property matters most for a car windscreen? (a) heat insulator (b) flexible (c) waterproof (d) transparent
  26. 26.🧱 Which material is best for the bars inside concrete? (a) rubber (b) steel (c) glass (d) plastic
  27. 27.Which of these needs a waterproof material? (a) the core of a wire (b) an umbrella cover (c) a switch contact (d) a skipping rope
  28. 28.🔍 Which is the odd one out? (a) plastic (b) aluminium (c) graphite (d) steel
  29. 29.🔍 Which is the odd one out? (a) clay pottery (b) iron (c) plastic (d) glass
  30. 30.🧱 Is dry wood an electrical conductor or an insulator? (a) an insulator (b) a conductor
  31. 31.True or false: a boat hull needs an electrical conductor. (a) False (b) True
  32. 32.True or false: a boat hull needs a heat insulator. (a) False (b) True
  33. 33.🧱 Is plastic an electrical conductor or an insulator? (a) an insulator (b) a conductor
  34. 34.True or false: a spectacle lens needs a transparent material. (a) True (b) False
  35. 35.🧱 Which property matters most for a magnifier lens? (a) heat insulator (b) electrical conductor (c) transparent (d) waterproof
  36. 36.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  37. 37.True or false: a car windscreen needs a transparent material. (a) True (b) False
  38. 38.🔍 Which is the odd one out? (a) copper (b) brass (c) glass (d) iron
  39. 39.🧱 Which property matters most for a yoga mat? (a) electrical conductor (b) heat insulator (c) transparent (d) flexible
  40. 40.🧱 Which property matters most for the core of a wire? (a) electrical conductor (b) flexible (c) transparent (d) waterproof

Answer key

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

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