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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 889 · 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) a raincoat (b) the core of a wire (c) an oven glove (d) a hair band
  2. 2.Which of these needs a waterproof material? (a) a spectacle lens (b) a switch contact (c) an umbrella cover (d) a window pane
  3. 3.True or false: a raincoat needs a waterproof material. (a) False (b) True
  4. 4.🧱 Which property matters most for an umbrella cover? (a) heat insulator (b) waterproof (c) electrical conductor (d) flexible
  5. 5.🔍 Which is the odd one out? (a) glass (b) rubber (c) plastic (d) iron
  6. 6.Which of these needs a heat insulator? (a) a car seat belt (b) a raincoat (c) a hair band (d) a tea flask lining
  7. 7.Which of these needs a heat insulator? (a) a water tank (b) a raincoat (c) a roof sheet (d) a cooking pot handle
  8. 8.True or false: a cooking pot handle needs a heat insulator. (a) True (b) False
  9. 9.🧱 Is brass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  10. 10.🧱 Which property matters most for a boat hull? (a) waterproof (b) flexible (c) transparent (d) heat insulator
  11. 11.True or false: a tea flask lining needs a heat insulator. (a) False (b) True
  12. 12.True or false: a window pane needs a transparent material. (a) True (b) False
  13. 13.True or false: a car windscreen needs a waterproof material. (a) False (b) True
  14. 14.🧱 Which property matters most for a roof sheet? (a) heat insulator (b) waterproof (c) electrical conductor (d) transparent
  15. 15.🧱 Is graphite an electrical conductor or an insulator? (a) a conductor (b) an insulator
  16. 16.🔍 Which is the odd one out? (a) steel (b) iron (c) plastic (d) graphite
  17. 17.True or false: an oven glove needs an electrical conductor. (a) True (b) False
  18. 18.True or false: a roof sheet needs a transparent material. (a) False (b) True
  19. 19.🔍 Which is the odd one out? (a) clay pottery (b) aluminium (c) copper (d) iron
  20. 20.🧱 Which material is best for the core of an electric wire? (a) rubber (b) copper (c) wood (d) glass
  21. 21.True or false: a roof sheet needs an electrical conductor. (a) False (b) True
  22. 22.🧱 Is dry wood an electrical conductor or an insulator? (a) a conductor (b) an insulator
  23. 23.🧱 Which property matters most for a car windscreen? (a) flexible (b) electrical conductor (c) heat insulator (d) transparent
  24. 24.🧱 Which material is best for a cooking pot handle? (a) aluminium (b) wood or plastic (c) copper (d) iron
  25. 25.🧱 Which property matters most for a magnifier lens? (a) waterproof (b) flexible (c) heat insulator (d) transparent
  26. 26.🧱 Is cotton cloth an electrical conductor or an insulator? (a) a conductor (b) an insulator
  27. 27.Which of these needs a flexible material? (a) an oven glove (b) a water tank (c) a skipping rope (d) a cooking pot handle
  28. 28.True or false: a hair band needs a flexible material. (a) False (b) True
  29. 29.Which of these needs an electrical conductor? (a) a tea flask lining (b) a switch contact (c) a magnifier lens (d) a yoga mat
  30. 30.🧱 Which material is best for a raincoat? (a) plastic-coated cloth (b) paper (c) cardboard (d) cotton wool
  31. 31.🔍 Which is the odd one out? (a) copper (b) brass (c) graphite (d) dry wood
  32. 32.Which of these needs a waterproof material? (a) a plug pin (b) a cooking pot handle (c) a yoga mat (d) a water tank
  33. 33.🧱 Which property matters most for a tea flask lining? (a) electrical conductor (b) waterproof (c) flexible (d) heat insulator
  34. 34.🧱 Is aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
  35. 35.🧱 Which property matters most for a switch contact? (a) flexible (b) waterproof (c) electrical conductor (d) heat insulator
  36. 36.Which of these needs a waterproof material? (a) a skipping rope (b) a yoga mat (c) a roof sheet (d) a magnifier lens
  37. 37.True or false: a water tank needs a waterproof material. (a) False (b) True
  38. 38.🧱 Which material is best for the bars inside concrete? (a) plastic (b) rubber (c) glass (d) steel
  39. 39.Which of these needs an electrical conductor? (a) a roof sheet (b) the core of a wire (c) a car windscreen (d) a window pane
  40. 40.Which of these needs a transparent material? (a) a water tank (b) a spectacle lens (c) an oven glove (d) a tea flask lining

Answer key

  1. an oven glove
  2. an umbrella cover
  3. True
  4. waterproof
  5. iron
  6. a tea flask lining
  7. a cooking pot handle
  8. True
  9. a conductor
  10. waterproof
  11. True
  12. True
  13. False
  14. waterproof
  15. a conductor
  16. plastic
  17. False
  18. False
  19. clay pottery
  20. copper
  21. False
  22. an insulator
  23. transparent
  24. wood or plastic
  25. transparent
  26. an insulator
  27. a skipping rope
  28. True
  29. a switch contact
  30. plastic-coated cloth
  31. dry wood
  32. a water tank
  33. heat insulator
  34. a conductor
  35. electrical conductor
  36. a roof sheet
  37. True
  38. steel
  39. the core of a wire
  40. a spectacle lens

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