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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 203 · 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 waterproof material? (a) a spectacle lens (b) a tea flask lining (c) a water tank (d) a magnifier lens
  2. 2.🔍 Which is the odd one out? (a) steel (b) graphite (c) rubber (d) brass
  3. 3.🔍 Which is the odd one out? (a) cotton cloth (b) clay pottery (c) plastic (d) graphite
  4. 4.🧱 Is clay pottery an electrical conductor or an insulator? (a) a conductor (b) an insulator
  5. 5.🧱 Which property matters most for a spectacle lens? (a) heat insulator (b) electrical conductor (c) transparent (d) flexible
  6. 6.Which of these needs a flexible material? (a) an oven glove (b) a cooking pot handle (c) a window pane (d) a skipping rope
  7. 7.True or false: a raincoat needs a waterproof material. (a) True (b) False
  8. 8.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  9. 9.Which of these needs a transparent material? (a) a tea flask lining (b) a plug pin (c) a spectacle lens (d) a hair band
  10. 10.🔍 Which is the odd one out? (a) copper (b) iron (c) graphite (d) dry wood
  11. 11.🧱 Which property matters most for a roof sheet? (a) heat insulator (b) electrical conductor (c) waterproof (d) transparent
  12. 12.True or false: a water tank needs a flexible material. (a) False (b) True
  13. 13.True or false: a yoga mat needs a flexible material. (a) False (b) True
  14. 14.Which of these needs a transparent material? (a) a switch contact (b) the core of a wire (c) a car windscreen (d) a raincoat
  15. 15.Which of these needs a waterproof material? (a) a car windscreen (b) a window pane (c) an oven glove (d) a boat hull
  16. 16.🧱 Is graphite an electrical conductor or an insulator? (a) an insulator (b) a conductor
  17. 17.True or false: a cooking pot handle needs a heat insulator. (a) True (b) False
  18. 18.True or false: a roof sheet needs a waterproof material. (a) False (b) True
  19. 19.Which of these needs an electrical conductor? (a) a car seat belt (b) a tea flask lining (c) a plug pin (d) a hair band
  20. 20.🔍 Which is the odd one out? (a) aluminium (b) clay pottery (c) steel (d) copper
  21. 21.Which of these needs a waterproof material? (a) a roof sheet (b) a magnifier lens (c) a switch contact (d) a hair band
  22. 22.Which of these needs a waterproof material? (a) an umbrella cover (b) a car seat belt (c) a spectacle lens (d) a magnifier lens
  23. 23.Which of these needs a flexible material? (a) a spectacle lens (b) a hair band (c) a water tank (d) a switch contact
  24. 24.🧱 Which property matters most for a plug pin? (a) waterproof (b) transparent (c) flexible (d) electrical conductor
  25. 25.🧱 Is dry wood an electrical conductor or an insulator? (a) a conductor (b) an insulator
  26. 26.Which of these needs a waterproof material? (a) the core of a wire (b) a raincoat (c) a window pane (d) a car windscreen
  27. 27.🧱 Which material is best for the core of an electric wire? (a) wood (b) rubber (c) glass (d) copper
  28. 28.🧱 Which property matters most for a cooking pot handle? (a) heat insulator (b) transparent (c) waterproof (d) electrical conductor
  29. 29.🧱 Which property matters most for a car windscreen? (a) heat insulator (b) flexible (c) transparent (d) waterproof
  30. 30.🧱 Is brass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  31. 31.True or false: a tea flask lining needs a transparent material. (a) True (b) False
  32. 32.True or false: a roof sheet needs a transparent material. (a) True (b) False
  33. 33.True or false: a switch contact needs a flexible material. (a) True (b) False
  34. 34.Which of these needs an electrical conductor? (a) a magnifier lens (b) a roof sheet (c) a raincoat (d) a switch contact
  35. 35.True or false: a yoga mat needs a waterproof material. (a) True (b) False
  36. 36.🧱 Is rubber an electrical conductor or an insulator? (a) an insulator (b) a conductor
  37. 37.🔍 Which is the odd one out? (a) graphite (b) steel (c) brass (d) plastic
  38. 38.🧱 Which material is best for the bars inside concrete? (a) plastic (b) steel (c) glass (d) rubber
  39. 39.🔍 Which is the odd one out? (a) clay pottery (b) dry wood (c) plastic (d) iron
  40. 40.Which of these needs a flexible material? (a) a tea flask lining (b) an umbrella cover (c) a yoga mat (d) a roof sheet

Answer key

  1. a water tank
  2. rubber
  3. graphite
  4. an insulator
  5. transparent
  6. a skipping rope
  7. True
  8. a conductor
  9. a spectacle lens
  10. dry wood
  11. waterproof
  12. False
  13. True
  14. a car windscreen
  15. a boat hull
  16. a conductor
  17. True
  18. True
  19. a plug pin
  20. clay pottery
  21. a roof sheet
  22. an umbrella cover
  23. a hair band
  24. electrical conductor
  25. an insulator
  26. a raincoat
  27. copper
  28. heat insulator
  29. transparent
  30. a conductor
  31. False
  32. False
  33. False
  34. a switch contact
  35. False
  36. an insulator
  37. plastic
  38. steel
  39. iron
  40. a yoga mat

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