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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 817 · 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 is the odd one out? (a) plastic (b) dry wood (c) brass (d) clay pottery
  2. 2.Which of these needs a waterproof material? (a) a plug pin (b) a magnifier lens (c) an umbrella cover (d) a skipping rope
  3. 3.🔍 Which is the odd one out? (a) rubber (b) clay pottery (c) glass (d) graphite
  4. 4.🧱 Which material is best for a raincoat? (a) plastic-coated cloth (b) cotton wool (c) cardboard (d) paper
  5. 5.Which of these needs a heat insulator? (a) a raincoat (b) a boat hull (c) a plug pin (d) a tea flask lining
  6. 6.🧱 Which property matters most for a spectacle lens? (a) electrical conductor (b) heat insulator (c) flexible (d) transparent
  7. 7.🔍 Which is the odd one out? (a) graphite (b) iron (c) rubber (d) steel
  8. 8.Which of these needs a heat insulator? (a) a car seat belt (b) an oven glove (c) a hair band (d) a magnifier lens
  9. 9.🧱 Is iron an electrical conductor or an insulator? (a) a conductor (b) an insulator
  10. 10.Which of these needs an electrical conductor? (a) a switch contact (b) a spectacle lens (c) a raincoat (d) a boat hull
  11. 11.🔍 Which is the odd one out? (a) copper (b) brass (c) iron (d) glass
  12. 12.Which of these needs a transparent material? (a) a plug pin (b) an oven glove (c) a window pane (d) a raincoat
  13. 13.🧱 Is dry wood an electrical conductor or an insulator? (a) an insulator (b) a conductor
  14. 14.🧱 Which property matters most for a skipping rope? (a) heat insulator (b) electrical conductor (c) transparent (d) flexible
  15. 15.Which of these needs a heat insulator? (a) a cooking pot handle (b) a car windscreen (c) a spectacle lens (d) a water tank
  16. 16.Which of these needs an electrical conductor? (a) a plug pin (b) an oven glove (c) a car windscreen (d) a car seat belt
  17. 17.True or false: a plug pin needs a waterproof material. (a) False (b) True
  18. 18.Which of these needs a flexible material? (a) a magnifier lens (b) an umbrella cover (c) a raincoat (d) a hair band
  19. 19.🧱 Which material is best for a window pane? (a) steel (b) glass (c) wood (d) brick
  20. 20.True or false: a cooking pot handle needs a heat insulator. (a) True (b) False
  21. 21.🧱 Is plastic an electrical conductor or an insulator? (a) an insulator (b) a conductor
  22. 22.🧱 Is rubber an electrical conductor or an insulator? (a) an insulator (b) a conductor
  23. 23.🧱 Which material is best for a cooking pot handle? (a) wood or plastic (b) aluminium (c) copper (d) iron
  24. 24.🧱 Which property matters most for an umbrella cover? (a) flexible (b) electrical conductor (c) waterproof (d) transparent
  25. 25.🔍 Which is the odd one out? (a) iron (b) copper (c) cotton cloth (d) brass
  26. 26.Which of these needs a waterproof material? (a) a car seat belt (b) a skipping rope (c) a raincoat (d) a tea flask lining
  27. 27.🧱 Which material is best for the core of an electric wire? (a) glass (b) rubber (c) copper (d) wood
  28. 28.True or false: a roof sheet needs a transparent material. (a) True (b) False
  29. 29.🧱 Which property matters most for a magnifier lens? (a) heat insulator (b) transparent (c) flexible (d) electrical conductor
  30. 30.True or false: a window pane needs a flexible material. (a) True (b) False
  31. 31.True or false: a boat hull needs a transparent material. (a) True (b) False
  32. 32.True or false: an oven glove needs a waterproof material. (a) False (b) True
  33. 33.🔍 Which is the odd one out? (a) dry wood (b) steel (c) rubber (d) clay pottery
  34. 34.🧱 Which material is best for the bars inside concrete? (a) plastic (b) steel (c) rubber (d) glass
  35. 35.🔍 Which is the odd one out? (a) rubber (b) plastic (c) clay pottery (d) iron
  36. 36.🧱 Which property matters most for a yoga mat? (a) waterproof (b) heat insulator (c) flexible (d) transparent
  37. 37.🧱 Is aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
  38. 38.🧱 Is brass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  39. 39.True or false: a skipping rope needs a flexible material. (a) False (b) True
  40. 40.🧱 Which property matters most for a car seat belt? (a) heat insulator (b) waterproof (c) flexible (d) electrical conductor

Answer key

  1. brass
  2. an umbrella cover
  3. graphite
  4. plastic-coated cloth
  5. a tea flask lining
  6. transparent
  7. rubber
  8. an oven glove
  9. a conductor
  10. a switch contact
  11. glass
  12. a window pane
  13. an insulator
  14. flexible
  15. a cooking pot handle
  16. a plug pin
  17. False
  18. a hair band
  19. glass
  20. True
  21. an insulator
  22. an insulator
  23. wood or plastic
  24. waterproof
  25. cotton cloth
  26. a raincoat
  27. copper
  28. False
  29. transparent
  30. False
  31. False
  32. False
  33. steel
  34. steel
  35. iron
  36. flexible
  37. a conductor
  38. a conductor
  39. True
  40. flexible

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