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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 208 · 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 material is best for the bars inside concrete? (a) plastic (b) glass (c) steel (d) rubber
  2. 2.True or false: a switch contact needs a transparent material. (a) True (b) False
  3. 3.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
  4. 4.🧱 Which property matters most for a yoga mat? (a) heat insulator (b) transparent (c) electrical conductor (d) flexible
  5. 5.True or false: the core of a wire needs an electrical conductor. (a) True (b) False
  6. 6.Which of these needs a transparent material? (a) an umbrella cover (b) a roof sheet (c) a window pane (d) an oven glove
  7. 7.🔍 Which is the odd one out? (a) rubber (b) dry wood (c) iron (d) plastic
  8. 8.True or false: a spectacle lens needs a flexible material. (a) False (b) True
  9. 9.True or false: a water tank needs a transparent material. (a) False (b) True
  10. 10.Which of these needs a waterproof material? (a) a plug pin (b) a switch contact (c) a car windscreen (d) a roof sheet
  11. 11.🧱 Which material is best for the core of an electric wire? (a) glass (b) copper (c) wood (d) rubber
  12. 12.True or false: an umbrella cover needs a heat insulator. (a) True (b) False
  13. 13.🔍 Which is the odd one out? (a) copper (b) dry wood (c) aluminium (d) graphite
  14. 14.🧱 Which property matters most for a raincoat? (a) waterproof (b) electrical conductor (c) transparent (d) flexible
  15. 15.Which of these needs a heat insulator? (a) a skipping rope (b) an oven glove (c) a raincoat (d) a water tank
  16. 16.True or false: a spectacle lens needs a waterproof material. (a) False (b) True
  17. 17.🧱 Which property matters most for a water tank? (a) heat insulator (b) waterproof (c) flexible (d) transparent
  18. 18.🧱 Which material is best for a cooking pot handle? (a) copper (b) aluminium (c) iron (d) wood or plastic
  19. 19.🔍 Which is the odd one out? (a) plastic (b) clay pottery (c) dry wood (d) aluminium
  20. 20.🔍 Which is the odd one out? (a) steel (b) copper (c) graphite (d) clay pottery
  21. 21.Which of these needs an electrical conductor? (a) a car windscreen (b) a hair band (c) a plug pin (d) a window pane
  22. 22.🧱 Is cotton cloth an electrical conductor or an insulator? (a) an insulator (b) a conductor
  23. 23.Which of these needs a waterproof material? (a) a switch contact (b) a car windscreen (c) a skipping rope (d) an umbrella cover
  24. 24.🧱 Is copper an electrical conductor or an insulator? (a) a conductor (b) an insulator
  25. 25.🧱 Which property matters most for a magnifier lens? (a) heat insulator (b) waterproof (c) transparent (d) flexible
  26. 26.Which of these needs a heat insulator? (a) a hair band (b) a window pane (c) a magnifier lens (d) a tea flask lining
  27. 27.True or false: a skipping rope needs a transparent material. (a) True (b) False
  28. 28.🧱 Which property matters most for a spectacle lens? (a) heat insulator (b) transparent (c) waterproof (d) electrical conductor
  29. 29.Which of these needs a waterproof material? (a) a yoga mat (b) a spectacle lens (c) a raincoat (d) a tea flask lining
  30. 30.Which of these needs a flexible material? (a) a car seat belt (b) a roof sheet (c) a spectacle lens (d) an umbrella cover
  31. 31.True or false: a yoga mat needs a transparent material. (a) False (b) True
  32. 32.🧱 Which material is best for a raincoat? (a) paper (b) cardboard (c) plastic-coated cloth (d) cotton wool
  33. 33.Which of these needs a transparent material? (a) a raincoat (b) a tea flask lining (c) a yoga mat (d) a magnifier lens
  34. 34.🧱 Which property matters most for a roof sheet? (a) heat insulator (b) waterproof (c) transparent (d) flexible
  35. 35.🧱 Is glass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  36. 36.True or false: a yoga mat needs a flexible material. (a) True (b) False
  37. 37.🧱 Which property matters most for a hair band? (a) waterproof (b) flexible (c) electrical conductor (d) heat insulator
  38. 38.🧱 Which property matters most for a car windscreen? (a) transparent (b) heat insulator (c) flexible (d) electrical conductor
  39. 39.🧱 Which property matters most for a window pane? (a) heat insulator (b) flexible (c) transparent (d) electrical conductor
  40. 40.🧱 Is clay pottery an electrical conductor or an insulator? (a) an insulator (b) a conductor

Answer key

  1. steel
  2. False
  3. an insulator
  4. flexible
  5. True
  6. a window pane
  7. iron
  8. False
  9. False
  10. a roof sheet
  11. copper
  12. False
  13. dry wood
  14. waterproof
  15. an oven glove
  16. False
  17. waterproof
  18. wood or plastic
  19. aluminium
  20. clay pottery
  21. a plug pin
  22. an insulator
  23. an umbrella cover
  24. a conductor
  25. transparent
  26. a tea flask lining
  27. False
  28. transparent
  29. a raincoat
  30. a car seat belt
  31. False
  32. plastic-coated cloth
  33. a magnifier lens
  34. waterproof
  35. an insulator
  36. True
  37. flexible
  38. transparent
  39. transparent
  40. an insulator

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