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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 170 · 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 a cooking pot handle? (a) aluminium (b) iron (c) wood or plastic (d) copper
  2. 2.🔍 Which is the odd one out? (a) plastic (b) copper (c) glass (d) cotton cloth
  3. 3.🔍 Which is the odd one out? (a) rubber (b) graphite (c) steel (d) copper
  4. 4.🔍 Which is the odd one out? (a) rubber (b) plastic (c) iron (d) glass
  5. 5.🧱 Is dry wood an electrical conductor or an insulator? (a) a conductor (b) an insulator
  6. 6.Which of these needs a transparent material? (a) a roof sheet (b) a boat hull (c) the core of a wire (d) a window pane
  7. 7.Which of these needs an electrical conductor? (a) a raincoat (b) a switch contact (c) a window pane (d) a car seat belt
  8. 8.Which of these needs a flexible material? (a) a hair band (b) a magnifier lens (c) a water tank (d) a boat hull
  9. 9.True or false: a switch contact needs a heat insulator. (a) False (b) True
  10. 10.🧱 Which property matters most for a magnifier lens? (a) flexible (b) electrical conductor (c) heat insulator (d) transparent
  11. 11.🧱 Which property matters most for an oven glove? (a) transparent (b) electrical conductor (c) flexible (d) heat insulator
  12. 12.True or false: an oven glove needs a heat insulator. (a) True (b) False
  13. 13.🧱 Which property matters most for a spectacle lens? (a) heat insulator (b) flexible (c) electrical conductor (d) transparent
  14. 14.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  15. 15.Which of these needs a waterproof material? (a) a window pane (b) a roof sheet (c) a tea flask lining (d) a magnifier lens
  16. 16.🧱 Which material is best for the bars inside concrete? (a) steel (b) glass (c) plastic (d) rubber
  17. 17.🧱 Which material is best for a raincoat? (a) cardboard (b) plastic-coated cloth (c) paper (d) cotton wool
  18. 18.Which of these needs an electrical conductor? (a) a spectacle lens (b) a car seat belt (c) a cooking pot handle (d) the core of a wire
  19. 19.🔍 Which is the odd one out? (a) plastic (b) graphite (c) rubber (d) clay pottery
  20. 20.True or false: a magnifier lens needs a transparent material. (a) False (b) True
  21. 21.🧱 Is glass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  22. 22.🧱 Which material is best for the core of an electric wire? (a) wood (b) rubber (c) copper (d) glass
  23. 23.🧱 Is plastic an electrical conductor or an insulator? (a) an insulator (b) a conductor
  24. 24.🧱 Is clay pottery an electrical conductor or an insulator? (a) a conductor (b) an insulator
  25. 25.🔍 Which is the odd one out? (a) iron (b) glass (c) graphite (d) copper
  26. 26.Which of these needs a flexible material? (a) a roof sheet (b) a raincoat (c) a cooking pot handle (d) a yoga mat
  27. 27.True or false: a car seat belt needs a heat insulator. (a) False (b) True
  28. 28.True or false: a switch contact needs an electrical conductor. (a) True (b) False
  29. 29.True or false: a skipping rope needs an electrical conductor. (a) False (b) True
  30. 30.Which of these needs a waterproof material? (a) a spectacle lens (b) a magnifier lens (c) an umbrella cover (d) the core of a wire
  31. 31.🧱 Which property matters most for a raincoat? (a) transparent (b) waterproof (c) heat insulator (d) flexible
  32. 32.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  33. 33.🧱 Is brass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  34. 34.Which of these needs a waterproof material? (a) a skipping rope (b) a cooking pot handle (c) a raincoat (d) a hair band
  35. 35.🧱 Which property matters most for an umbrella cover? (a) transparent (b) waterproof (c) electrical conductor (d) flexible
  36. 36.🔍 Which is the odd one out? (a) glass (b) dry wood (c) rubber (d) brass
  37. 37.🔍 Which is the odd one out? (a) steel (b) clay pottery (c) graphite (d) aluminium
  38. 38.True or false: a car windscreen needs a transparent material. (a) True (b) False
  39. 39.🧱 Is rubber an electrical conductor or an insulator? (a) a conductor (b) an insulator
  40. 40.Which of these needs a transparent material? (a) a switch contact (b) a car windscreen (c) an oven glove (d) a raincoat

Answer key

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

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