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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 353 · 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) aluminium (b) plastic (c) iron (d) brass
  2. 2.🔍 Which is the odd one out? (a) copper (b) brass (c) clay pottery (d) steel
  3. 3.🔍 Which is the odd one out? (a) plastic (b) clay pottery (c) iron (d) rubber
  4. 4.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
  5. 5.🧱 Is dry wood an electrical conductor or an insulator? (a) a conductor (b) an insulator
  6. 6.🧱 Which material is best for the core of an electric wire? (a) wood (b) glass (c) rubber (d) copper
  7. 7.🧱 Is steel an electrical conductor or an insulator? (a) a conductor (b) an insulator
  8. 8.🧱 Which property matters most for the core of a wire? (a) transparent (b) heat insulator (c) electrical conductor (d) flexible
  9. 9.True or false: the core of a wire needs a flexible material. (a) False (b) True
  10. 10.🧱 Which property matters most for a boat hull? (a) flexible (b) waterproof (c) heat insulator (d) electrical conductor
  11. 11.Which of these needs an electrical conductor? (a) a water tank (b) a car windscreen (c) the core of a wire (d) a window pane
  12. 12.🧱 Which material is best for the bars inside concrete? (a) plastic (b) steel (c) glass (d) rubber
  13. 13.True or false: a switch contact needs a transparent material. (a) False (b) True
  14. 14.🧱 Is aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
  15. 15.True or false: a magnifier lens needs a heat insulator. (a) True (b) False
  16. 16.🔍 Which is the odd one out? (a) copper (b) aluminium (c) dry wood (d) brass
  17. 17.🔍 Which is the odd one out? (a) glass (b) steel (c) plastic (d) dry wood
  18. 18.🧱 Which property matters most for a skipping rope? (a) transparent (b) flexible (c) waterproof (d) heat insulator
  19. 19.🧱 Which material is best for a cooking pot handle? (a) copper (b) aluminium (c) iron (d) wood or plastic
  20. 20.🧱 Is iron an electrical conductor or an insulator? (a) a conductor (b) an insulator
  21. 21.🔍 Which is the odd one out? (a) glass (b) copper (c) iron (d) aluminium
  22. 22.True or false: a boat hull needs a flexible material. (a) False (b) True
  23. 23.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  24. 24.🧱 Which property matters most for a car windscreen? (a) electrical conductor (b) heat insulator (c) transparent (d) waterproof
  25. 25.True or false: a hair band needs a flexible material. (a) True (b) False
  26. 26.True or false: a raincoat needs a transparent material. (a) True (b) False
  27. 27.🧱 Which material is best for a raincoat? (a) paper (b) cotton wool (c) plastic-coated cloth (d) cardboard
  28. 28.🔍 Which is the odd one out? (a) aluminium (b) iron (c) steel (d) cotton cloth
  29. 29.🔍 Which is the odd one out? (a) cotton cloth (b) plastic (c) graphite (d) rubber
  30. 30.🧱 Which property matters most for a tea flask lining? (a) flexible (b) heat insulator (c) transparent (d) electrical conductor
  31. 31.True or false: a skipping rope needs a waterproof material. (a) True (b) False
  32. 32.🔍 Which is the odd one out? (a) cotton cloth (b) aluminium (c) rubber (d) glass
  33. 33.🧱 Which property matters most for an oven glove? (a) transparent (b) waterproof (c) flexible (d) heat insulator
  34. 34.🔍 Which is the odd one out? (a) copper (b) dry wood (c) plastic (d) rubber
  35. 35.True or false: a car seat belt needs a flexible material. (a) True (b) False
  36. 36.🔍 Which is the odd one out? (a) copper (b) rubber (c) steel (d) iron
  37. 37.🧱 Which property matters most for a switch contact? (a) electrical conductor (b) heat insulator (c) transparent (d) waterproof
  38. 38.🧱 Is cotton cloth an electrical conductor or an insulator? (a) a conductor (b) an insulator
  39. 39.Which of these needs a flexible material? (a) a switch contact (b) a car seat belt (c) a raincoat (d) an umbrella cover
  40. 40.True or false: a water tank needs an electrical conductor. (a) False (b) True

Answer key

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

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