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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 995 · 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 an electrical conductor? (a) a plug pin (b) a window pane (c) a car seat belt (d) an umbrella cover
  2. 2.🧱 Which material is best for a window pane? (a) steel (b) wood (c) brick (d) glass
  3. 3.🔍 Which is the odd one out? (a) plastic (b) graphite (c) steel (d) brass
  4. 4.Which of these needs a flexible material? (a) a plug pin (b) a spectacle lens (c) a water tank (d) a yoga mat
  5. 5.🧱 Is rubber an electrical conductor or an insulator? (a) an insulator (b) a conductor
  6. 6.🧱 Which material is best for a raincoat? (a) cotton wool (b) plastic-coated cloth (c) cardboard (d) paper
  7. 7.Which of these needs a flexible material? (a) a cooking pot handle (b) a water tank (c) a skipping rope (d) an oven glove
  8. 8.🧱 Which material is best for the bars inside concrete? (a) plastic (b) rubber (c) steel (d) glass
  9. 9.🧱 Is copper an electrical conductor or an insulator? (a) a conductor (b) an insulator
  10. 10.🧱 Is glass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  11. 11.True or false: a roof sheet needs a heat insulator. (a) False (b) True
  12. 12.🧱 Which property matters most for a skipping rope? (a) flexible (b) electrical conductor (c) waterproof (d) heat insulator
  13. 13.Which of these needs a flexible material? (a) a boat hull (b) an umbrella cover (c) a switch contact (d) a car seat belt
  14. 14.True or false: an umbrella cover needs a waterproof material. (a) False (b) True
  15. 15.🧱 Which material is best for a cooking pot handle? (a) iron (b) aluminium (c) wood or plastic (d) copper
  16. 16.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  17. 17.🧱 Which property matters most for a hair band? (a) flexible (b) electrical conductor (c) heat insulator (d) waterproof
  18. 18.True or false: a spectacle lens needs a transparent material. (a) False (b) True
  19. 19.True or false: a skipping rope needs a flexible material. (a) True (b) False
  20. 20.True or false: a window pane needs a flexible material. (a) False (b) True
  21. 21.🧱 Is graphite an electrical conductor or an insulator? (a) an insulator (b) a conductor
  22. 22.🧱 Is cotton cloth an electrical conductor or an insulator? (a) a conductor (b) an insulator
  23. 23.🧱 Is plastic an electrical conductor or an insulator? (a) an insulator (b) a conductor
  24. 24.🧱 Which material is best for the core of an electric wire? (a) wood (b) rubber (c) glass (d) copper
  25. 25.🧱 Which property matters most for a yoga mat? (a) electrical conductor (b) waterproof (c) flexible (d) transparent
  26. 26.Which of these needs a heat insulator? (a) a switch contact (b) a yoga mat (c) a car windscreen (d) a tea flask lining
  27. 27.🧱 Which property matters most for a spectacle lens? (a) heat insulator (b) electrical conductor (c) waterproof (d) transparent
  28. 28.True or false: a magnifier lens needs a flexible material. (a) True (b) False
  29. 29.🧱 Which property matters most for an umbrella cover? (a) electrical conductor (b) flexible (c) waterproof (d) transparent
  30. 30.🔍 Which is the odd one out? (a) plastic (b) cotton cloth (c) graphite (d) dry wood
  31. 31.True or false: a magnifier lens needs a waterproof material. (a) True (b) False
  32. 32.True or false: a yoga mat needs a waterproof material. (a) True (b) False
  33. 33.🔍 Which is the odd one out? (a) aluminium (b) steel (c) iron (d) rubber
  34. 34.True or false: an oven glove needs a transparent material. (a) False (b) True
  35. 35.True or false: a tea flask lining needs a flexible material. (a) False (b) True
  36. 36.🧱 Which property matters most for a cooking pot handle? (a) flexible (b) electrical conductor (c) waterproof (d) heat insulator
  37. 37.🧱 Which property matters most for a car seat belt? (a) electrical conductor (b) flexible (c) transparent (d) waterproof
  38. 38.True or false: a boat hull needs a transparent material. (a) True (b) False
  39. 39.🔍 Which is the odd one out? (a) graphite (b) copper (c) iron (d) clay pottery
  40. 40.🔍 Which is the odd one out? (a) cotton cloth (b) copper (c) dry wood (d) glass

Answer key

  1. a plug pin
  2. glass
  3. plastic
  4. a yoga mat
  5. an insulator
  6. plastic-coated cloth
  7. a skipping rope
  8. steel
  9. a conductor
  10. an insulator
  11. False
  12. flexible
  13. a car seat belt
  14. True
  15. wood or plastic
  16. a conductor
  17. flexible
  18. True
  19. True
  20. False
  21. a conductor
  22. an insulator
  23. an insulator
  24. copper
  25. flexible
  26. a tea flask lining
  27. transparent
  28. False
  29. waterproof
  30. graphite
  31. False
  32. False
  33. rubber
  34. False
  35. False
  36. heat insulator
  37. flexible
  38. False
  39. clay pottery
  40. copper

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