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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 712 · 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 property matters most for a switch contact? (a) heat insulator (b) flexible (c) waterproof (d) electrical conductor
  2. 2.🔍 Which is the odd one out? (a) brass (b) copper (c) dry wood (d) steel
  3. 3.Which of these needs a transparent material? (a) a window pane (b) a roof sheet (c) a skipping rope (d) a tea flask lining
  4. 4.🔍 Which is the odd one out? (a) cotton cloth (b) dry wood (c) iron (d) rubber
  5. 5.Which of these needs a heat insulator? (a) an oven glove (b) a car seat belt (c) a raincoat (d) a roof sheet
  6. 6.🧱 Which property matters most for an oven glove? (a) electrical conductor (b) heat insulator (c) transparent (d) flexible
  7. 7.🧱 Which material is best for the core of an electric wire? (a) copper (b) rubber (c) wood (d) glass
  8. 8.🧱 Which material is best for a raincoat? (a) cardboard (b) plastic-coated cloth (c) cotton wool (d) paper
  9. 9.🔍 Which is the odd one out? (a) aluminium (b) glass (c) brass (d) copper
  10. 10.🧱 Is rubber an electrical conductor or an insulator? (a) a conductor (b) an insulator
  11. 11.🔍 Which is the odd one out? (a) plastic (b) steel (c) graphite (d) copper
  12. 12.True or false: a spectacle lens needs a flexible material. (a) True (b) False
  13. 13.🧱 Which property matters most for the core of a wire? (a) transparent (b) flexible (c) electrical conductor (d) waterproof
  14. 14.True or false: a roof sheet needs a waterproof material. (a) True (b) False
  15. 15.🧱 Which material is best for the bars inside concrete? (a) glass (b) plastic (c) steel (d) rubber
  16. 16.🔍 Which is the odd one out? (a) glass (b) rubber (c) dry wood (d) brass
  17. 17.Which of these needs a transparent material? (a) an umbrella cover (b) a water tank (c) a magnifier lens (d) a boat hull
  18. 18.True or false: a car seat belt needs a flexible material. (a) False (b) True
  19. 19.🧱 Is clay pottery an electrical conductor or an insulator? (a) an insulator (b) a conductor
  20. 20.🔍 Which is the odd one out? (a) plastic (b) rubber (c) dry wood (d) copper
  21. 21.🧱 Which property matters most for an umbrella cover? (a) heat insulator (b) electrical conductor (c) transparent (d) waterproof
  22. 22.🧱 Is plastic an electrical conductor or an insulator? (a) an insulator (b) a conductor
  23. 23.🧱 Which material is best for a window pane? (a) glass (b) steel (c) wood (d) brick
  24. 24.🧱 Which property matters most for a raincoat? (a) waterproof (b) electrical conductor (c) flexible (d) heat insulator
  25. 25.Which of these needs an electrical conductor? (a) a tea flask lining (b) a switch contact (c) a magnifier lens (d) a cooking pot handle
  26. 26.🔍 Which is the odd one out? (a) aluminium (b) plastic (c) glass (d) rubber
  27. 27.True or false: a spectacle lens needs a transparent material. (a) True (b) False
  28. 28.🧱 Which material is best for a cooking pot handle? (a) copper (b) iron (c) aluminium (d) wood or plastic
  29. 29.Which of these needs a waterproof material? (a) a window pane (b) an umbrella cover (c) a skipping rope (d) a magnifier lens
  30. 30.Which of these needs a flexible material? (a) a boat hull (b) a spectacle lens (c) the core of a wire (d) a skipping rope
  31. 31.True or false: a skipping rope needs a waterproof material. (a) False (b) True
  32. 32.🧱 Is graphite an electrical conductor or an insulator? (a) a conductor (b) an insulator
  33. 33.True or false: a raincoat needs an electrical conductor. (a) False (b) True
  34. 34.🧱 Which property matters most for a tea flask lining? (a) transparent (b) heat insulator (c) electrical conductor (d) waterproof
  35. 35.🧱 Which property matters most for a roof sheet? (a) electrical conductor (b) transparent (c) flexible (d) waterproof
  36. 36.🧱 Which property matters most for a cooking pot handle? (a) transparent (b) flexible (c) heat insulator (d) waterproof
  37. 37.Which of these needs a transparent material? (a) a yoga mat (b) a car windscreen (c) a plug pin (d) a car seat belt
  38. 38.🧱 Which property matters most for a boat hull? (a) transparent (b) electrical conductor (c) waterproof (d) flexible
  39. 39.🧱 Is brass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  40. 40.🧱 Which property matters most for a window pane? (a) heat insulator (b) electrical conductor (c) transparent (d) waterproof

Answer key

  1. electrical conductor
  2. dry wood
  3. a window pane
  4. iron
  5. an oven glove
  6. heat insulator
  7. copper
  8. plastic-coated cloth
  9. glass
  10. an insulator
  11. plastic
  12. False
  13. electrical conductor
  14. True
  15. steel
  16. brass
  17. a magnifier lens
  18. True
  19. an insulator
  20. copper
  21. waterproof
  22. an insulator
  23. glass
  24. waterproof
  25. a switch contact
  26. aluminium
  27. True
  28. wood or plastic
  29. an umbrella cover
  30. a skipping rope
  31. False
  32. a conductor
  33. False
  34. heat insulator
  35. waterproof
  36. heat insulator
  37. a car windscreen
  38. waterproof
  39. a conductor
  40. transparent

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