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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 959 · 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.🧱 Is plastic an electrical conductor or an insulator? (a) an insulator (b) a conductor
  2. 2.True or false: a spectacle lens needs a transparent material. (a) False (b) True
  3. 3.True or false: a skipping rope needs a flexible material. (a) False (b) True
  4. 4.🔍 Which is the odd one out? (a) graphite (b) cotton cloth (c) rubber (d) clay pottery
  5. 5.🔍 Which is the odd one out? (a) rubber (b) brass (c) clay pottery (d) glass
  6. 6.🧱 Which material is best for a cooking pot handle? (a) copper (b) wood or plastic (c) aluminium (d) iron
  7. 7.True or false: a magnifier lens needs a transparent material. (a) False (b) True
  8. 8.🔍 Which is the odd one out? (a) brass (b) steel (c) graphite (d) cotton cloth
  9. 9.🧱 Which property matters most for a water tank? (a) transparent (b) flexible (c) waterproof (d) heat insulator
  10. 10.🧱 Which property matters most for a car seat belt? (a) electrical conductor (b) heat insulator (c) waterproof (d) flexible
  11. 11.🧱 Is rubber an electrical conductor or an insulator? (a) an insulator (b) a conductor
  12. 12.🔍 Which is the odd one out? (a) aluminium (b) dry wood (c) cotton cloth (d) plastic
  13. 13.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  14. 14.🧱 Which property matters most for a yoga mat? (a) waterproof (b) flexible (c) heat insulator (d) transparent
  15. 15.True or false: a spectacle lens needs a waterproof material. (a) True (b) False
  16. 16.Which of these needs a heat insulator? (a) an oven glove (b) a window pane (c) a switch contact (d) a car seat belt
  17. 17.🔍 Which is the odd one out? (a) aluminium (b) dry wood (c) brass (d) steel
  18. 18.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
  19. 19.🧱 Which property matters most for a skipping rope? (a) flexible (b) transparent (c) electrical conductor (d) waterproof
  20. 20.🧱 Which property matters most for a raincoat? (a) electrical conductor (b) heat insulator (c) waterproof (d) flexible
  21. 21.🧱 Is dry wood an electrical conductor or an insulator? (a) a conductor (b) an insulator
  22. 22.True or false: a tea flask lining needs a waterproof material. (a) False (b) True
  23. 23.Which of these needs a waterproof material? (a) a yoga mat (b) a tea flask lining (c) a roof sheet (d) a window pane
  24. 24.Which of these needs an electrical conductor? (a) an umbrella cover (b) the core of a wire (c) a spectacle lens (d) a raincoat
  25. 25.🧱 Which material is best for a raincoat? (a) cardboard (b) paper (c) cotton wool (d) plastic-coated cloth
  26. 26.Which of these needs a waterproof material? (a) a skipping rope (b) a hair band (c) a car seat belt (d) a raincoat
  27. 27.True or false: a car windscreen needs a transparent material. (a) False (b) True
  28. 28.🧱 Is brass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  29. 29.🧱 Which property matters most for an umbrella cover? (a) flexible (b) electrical conductor (c) heat insulator (d) waterproof
  30. 30.🔍 Which is the odd one out? (a) dry wood (b) plastic (c) steel (d) cotton cloth
  31. 31.🧱 Which material is best for a window pane? (a) wood (b) brick (c) steel (d) glass
  32. 32.Which of these needs a waterproof material? (a) a switch contact (b) a car seat belt (c) a plug pin (d) a boat hull
  33. 33.🧱 Is clay pottery an electrical conductor or an insulator? (a) a conductor (b) an insulator
  34. 34.🧱 Which property matters most for a boat hull? (a) electrical conductor (b) flexible (c) transparent (d) waterproof
  35. 35.🔍 Which is the odd one out? (a) steel (b) brass (c) clay pottery (d) copper
  36. 36.🔍 Which is the odd one out? (a) aluminium (b) iron (c) copper (d) plastic
  37. 37.True or false: a water tank needs a flexible material. (a) True (b) False
  38. 38.True or false: a car seat belt needs a transparent material. (a) False (b) True
  39. 39.🧱 Which property matters most for an oven glove? (a) flexible (b) waterproof (c) electrical conductor (d) heat insulator
  40. 40.Which of these needs a flexible material? (a) a raincoat (b) a spectacle lens (c) a car seat belt (d) a switch contact

Answer key

  1. an insulator
  2. True
  3. True
  4. graphite
  5. brass
  6. wood or plastic
  7. True
  8. cotton cloth
  9. waterproof
  10. flexible
  11. an insulator
  12. aluminium
  13. a conductor
  14. flexible
  15. False
  16. an oven glove
  17. dry wood
  18. a conductor
  19. flexible
  20. waterproof
  21. an insulator
  22. False
  23. a roof sheet
  24. the core of a wire
  25. plastic-coated cloth
  26. a raincoat
  27. True
  28. a conductor
  29. waterproof
  30. steel
  31. glass
  32. a boat hull
  33. an insulator
  34. waterproof
  35. clay pottery
  36. plastic
  37. False
  38. False
  39. heat insulator
  40. a car seat belt

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