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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 301 · 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 glass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  2. 2.🧱 Which material is best for a raincoat? (a) plastic-coated cloth (b) cardboard (c) cotton wool (d) paper
  3. 3.Which of these needs an electrical conductor? (a) a raincoat (b) a car windscreen (c) the core of a wire (d) a cooking pot handle
  4. 4.🧱 Which property matters most for a car seat belt? (a) electrical conductor (b) heat insulator (c) waterproof (d) flexible
  5. 5.🧱 Which material is best for the core of an electric wire? (a) copper (b) glass (c) wood (d) rubber
  6. 6.True or false: a car seat belt needs an electrical conductor. (a) True (b) False
  7. 7.🧱 Which material is best for a cooking pot handle? (a) copper (b) iron (c) wood or plastic (d) aluminium
  8. 8.🧱 Is aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
  9. 9.🔍 Which is the odd one out? (a) glass (b) dry wood (c) steel (d) rubber
  10. 10.🔍 Which is the odd one out? (a) steel (b) rubber (c) iron (d) aluminium
  11. 11.🧱 Which property matters most for a magnifier lens? (a) heat insulator (b) waterproof (c) flexible (d) transparent
  12. 12.🔍 Which is the odd one out? (a) rubber (b) aluminium (c) dry wood (d) glass
  13. 13.Which of these needs a waterproof material? (a) a hair band (b) a cooking pot handle (c) a roof sheet (d) the core of a wire
  14. 14.🧱 Is graphite an electrical conductor or an insulator? (a) an insulator (b) a conductor
  15. 15.🧱 Which property matters most for a boat hull? (a) heat insulator (b) waterproof (c) transparent (d) flexible
  16. 16.True or false: a hair band needs a flexible material. (a) True (b) False
  17. 17.True or false: a cooking pot handle needs a heat insulator. (a) False (b) True
  18. 18.Which of these needs a flexible material? (a) a tea flask lining (b) a car windscreen (c) a yoga mat (d) the core of a wire
  19. 19.Which of these needs a transparent material? (a) a car seat belt (b) a window pane (c) a plug pin (d) a switch contact
  20. 20.🧱 Which material is best for a window pane? (a) brick (b) glass (c) steel (d) wood
  21. 21.🧱 Which property matters most for an umbrella cover? (a) heat insulator (b) flexible (c) waterproof (d) electrical conductor
  22. 22.🧱 Which property matters most for a raincoat? (a) flexible (b) waterproof (c) transparent (d) heat insulator
  23. 23.🧱 Which property matters most for a cooking pot handle? (a) flexible (b) heat insulator (c) transparent (d) waterproof
  24. 24.Which of these needs a flexible material? (a) a tea flask lining (b) a spectacle lens (c) the core of a wire (d) a skipping rope
  25. 25.🔍 Which is the odd one out? (a) plastic (b) graphite (c) clay pottery (d) glass
  26. 26.🔍 Which is the odd one out? (a) brass (b) plastic (c) dry wood (d) clay pottery
  27. 27.🧱 Is clay pottery an electrical conductor or an insulator? (a) a conductor (b) an insulator
  28. 28.True or false: a cooking pot handle needs an electrical conductor. (a) True (b) False
  29. 29.🧱 Which material is best for the bars inside concrete? (a) steel (b) plastic (c) rubber (d) glass
  30. 30.🧱 Is brass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  31. 31.🔍 Which is the odd one out? (a) steel (b) iron (c) glass (d) copper
  32. 32.Which of these needs a transparent material? (a) a skipping rope (b) a plug pin (c) a cooking pot handle (d) a spectacle lens
  33. 33.True or false: a skipping rope needs a waterproof material. (a) False (b) True
  34. 34.Which of these needs an electrical conductor? (a) a car seat belt (b) a tea flask lining (c) a cooking pot handle (d) a plug pin
  35. 35.True or false: a water tank needs a waterproof material. (a) False (b) True
  36. 36.🧱 Which property matters most for a switch contact? (a) transparent (b) flexible (c) waterproof (d) electrical conductor
  37. 37.🔍 Which is the odd one out? (a) copper (b) iron (c) brass (d) plastic
  38. 38.🧱 Which property matters most for a plug pin? (a) electrical conductor (b) flexible (c) transparent (d) heat insulator
  39. 39.🧱 Which property matters most for a roof sheet? (a) electrical conductor (b) transparent (c) heat insulator (d) waterproof
  40. 40.True or false: the core of a wire needs a flexible material. (a) False (b) True

Answer key

  1. an insulator
  2. plastic-coated cloth
  3. the core of a wire
  4. flexible
  5. copper
  6. False
  7. wood or plastic
  8. a conductor
  9. steel
  10. rubber
  11. transparent
  12. aluminium
  13. a roof sheet
  14. a conductor
  15. waterproof
  16. True
  17. True
  18. a yoga mat
  19. a window pane
  20. glass
  21. waterproof
  22. waterproof
  23. heat insulator
  24. a skipping rope
  25. graphite
  26. brass
  27. an insulator
  28. False
  29. steel
  30. a conductor
  31. glass
  32. a spectacle lens
  33. False
  34. a plug pin
  35. True
  36. electrical conductor
  37. plastic
  38. electrical conductor
  39. waterproof
  40. False

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