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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 798 · 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 clay pottery an electrical conductor or an insulator? (a) a conductor (b) an insulator
  2. 2.Which of these needs an electrical conductor? (a) an umbrella cover (b) a roof sheet (c) a tea flask lining (d) a plug pin
  3. 3.True or false: a spectacle lens needs a transparent material. (a) False (b) True
  4. 4.Which of these needs a waterproof material? (a) a window pane (b) a skipping rope (c) a roof sheet (d) a car seat belt
  5. 5.🔍 Which is the odd one out? (a) brass (b) rubber (c) iron (d) aluminium
  6. 6.🧱 Which material is best for the bars inside concrete? (a) plastic (b) rubber (c) steel (d) glass
  7. 7.🧱 Which material is best for a raincoat? (a) cotton wool (b) cardboard (c) paper (d) plastic-coated cloth
  8. 8.🧱 Is cotton cloth an electrical conductor or an insulator? (a) a conductor (b) an insulator
  9. 9.Which of these needs an electrical conductor? (a) a raincoat (b) a car windscreen (c) the core of a wire (d) a skipping rope
  10. 10.🧱 Is dry wood an electrical conductor or an insulator? (a) an insulator (b) a conductor
  11. 11.🧱 Which property matters most for a spectacle lens? (a) transparent (b) flexible (c) waterproof (d) electrical conductor
  12. 12.🧱 Which material is best for a window pane? (a) glass (b) brick (c) steel (d) wood
  13. 13.🧱 Which material is best for the core of an electric wire? (a) glass (b) rubber (c) copper (d) wood
  14. 14.🧱 Is steel an electrical conductor or an insulator? (a) a conductor (b) an insulator
  15. 15.🔍 Which is the odd one out? (a) steel (b) plastic (c) copper (d) brass
  16. 16.🧱 Which property matters most for a yoga mat? (a) electrical conductor (b) waterproof (c) flexible (d) transparent
  17. 17.True or false: an oven glove needs a waterproof material. (a) True (b) False
  18. 18.🧱 Which material is best for a cooking pot handle? (a) wood or plastic (b) aluminium (c) copper (d) iron
  19. 19.Which of these needs a transparent material? (a) a car windscreen (b) the core of a wire (c) a water tank (d) a cooking pot handle
  20. 20.🔍 Which is the odd one out? (a) dry wood (b) cotton cloth (c) clay pottery (d) copper
  21. 21.True or false: a tea flask lining needs a transparent material. (a) True (b) False
  22. 22.🔍 Which is the odd one out? (a) aluminium (b) cotton cloth (c) iron (d) brass
  23. 23.True or false: a hair band needs a waterproof material. (a) True (b) False
  24. 24.🧱 Which property matters most for a cooking pot handle? (a) electrical conductor (b) transparent (c) heat insulator (d) waterproof
  25. 25.Which of these needs an electrical conductor? (a) a spectacle lens (b) a cooking pot handle (c) a switch contact (d) a roof sheet
  26. 26.True or false: the core of a wire needs an electrical conductor. (a) True (b) False
  27. 27.🧱 Which property matters most for an umbrella cover? (a) waterproof (b) heat insulator (c) flexible (d) transparent
  28. 28.True or false: a car windscreen needs a flexible material. (a) False (b) True
  29. 29.Which of these needs a heat insulator? (a) a skipping rope (b) a yoga mat (c) an oven glove (d) an umbrella cover
  30. 30.Which of these needs a transparent material? (a) a cooking pot handle (b) the core of a wire (c) a tea flask lining (d) a spectacle lens
  31. 31.True or false: a yoga mat needs a flexible material. (a) True (b) False
  32. 32.🔍 Which is the odd one out? (a) aluminium (b) glass (c) clay pottery (d) plastic
  33. 33.Which of these needs a heat insulator? (a) a magnifier lens (b) a cooking pot handle (c) a yoga mat (d) a boat hull
  34. 34.True or false: a magnifier lens needs a flexible material. (a) True (b) False
  35. 35.🔍 Which is the odd one out? (a) glass (b) dry wood (c) graphite (d) plastic
  36. 36.True or false: a roof sheet needs a waterproof material. (a) True (b) False
  37. 37.🧱 Is glass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  38. 38.🔍 Which is the odd one out? (a) iron (b) graphite (c) dry wood (d) brass
  39. 39.True or false: a plug pin needs a heat insulator. (a) False (b) True
  40. 40.True or false: a hair band needs an electrical conductor. (a) True (b) False

Answer key

  1. an insulator
  2. a plug pin
  3. True
  4. a roof sheet
  5. rubber
  6. steel
  7. plastic-coated cloth
  8. an insulator
  9. the core of a wire
  10. an insulator
  11. transparent
  12. glass
  13. copper
  14. a conductor
  15. plastic
  16. flexible
  17. False
  18. wood or plastic
  19. a car windscreen
  20. copper
  21. False
  22. cotton cloth
  23. False
  24. heat insulator
  25. a switch contact
  26. True
  27. waterproof
  28. False
  29. an oven glove
  30. a spectacle lens
  31. True
  32. aluminium
  33. a cooking pot handle
  34. False
  35. graphite
  36. True
  37. an insulator
  38. dry wood
  39. False
  40. False

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