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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 367 · 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) clay pottery (b) plastic (c) dry wood (d) aluminium
  2. 2.Which of these needs a heat insulator? (a) a car seat belt (b) a tea flask lining (c) a car windscreen (d) a plug pin
  3. 3.🧱 Which material is best for the bars inside concrete? (a) plastic (b) steel (c) glass (d) rubber
  4. 4.🧱 Which property matters most for a car windscreen? (a) transparent (b) electrical conductor (c) heat insulator (d) waterproof
  5. 5.True or false: a car seat belt needs a flexible material. (a) True (b) False
  6. 6.🧱 Which material is best for a window pane? (a) wood (b) brick (c) steel (d) glass
  7. 7.🧱 Is aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
  8. 8.🧱 Which material is best for a raincoat? (a) paper (b) cardboard (c) cotton wool (d) plastic-coated cloth
  9. 9.🔍 Which is the odd one out? (a) copper (b) plastic (c) dry wood (d) glass
  10. 10.🧱 Which property matters most for a roof sheet? (a) transparent (b) flexible (c) waterproof (d) electrical conductor
  11. 11.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
  12. 12.🔍 Which is the odd one out? (a) steel (b) copper (c) clay pottery (d) graphite
  13. 13.🔍 Which is the odd one out? (a) rubber (b) dry wood (c) iron (d) plastic
  14. 14.🧱 Which material is best for a cooking pot handle? (a) iron (b) copper (c) wood or plastic (d) aluminium
  15. 15.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  16. 16.🧱 Which property matters most for a raincoat? (a) transparent (b) electrical conductor (c) heat insulator (d) waterproof
  17. 17.True or false: a window pane needs an electrical conductor. (a) False (b) True
  18. 18.🔍 Which is the odd one out? (a) steel (b) aluminium (c) glass (d) copper
  19. 19.Which of these needs a transparent material? (a) a skipping rope (b) an oven glove (c) a window pane (d) a plug pin
  20. 20.Which of these needs a flexible material? (a) an umbrella cover (b) a switch contact (c) a yoga mat (d) a window pane
  21. 21.Which of these needs a waterproof material? (a) a switch contact (b) a plug pin (c) a magnifier lens (d) a water tank
  22. 22.🧱 Is graphite an electrical conductor or an insulator? (a) an insulator (b) a conductor
  23. 23.True or false: the core of a wire needs a heat insulator. (a) True (b) False
  24. 24.🧱 Which material is best for the core of an electric wire? (a) rubber (b) wood (c) copper (d) glass
  25. 25.🔍 Which is the odd one out? (a) dry wood (b) iron (c) brass (d) graphite
  26. 26.True or false: a switch contact needs a flexible material. (a) False (b) True
  27. 27.Which of these needs a heat insulator? (a) a spectacle lens (b) a cooking pot handle (c) a plug pin (d) a raincoat
  28. 28.🔍 Which is the odd one out? (a) aluminium (b) copper (c) rubber (d) iron
  29. 29.🧱 Which property matters most for an oven glove? (a) heat insulator (b) transparent (c) flexible (d) waterproof
  30. 30.True or false: a raincoat needs a waterproof material. (a) True (b) False
  31. 31.Which of these needs a transparent material? (a) an oven glove (b) a roof sheet (c) a spectacle lens (d) a raincoat
  32. 32.🧱 Which property matters most for a plug pin? (a) waterproof (b) transparent (c) electrical conductor (d) heat insulator
  33. 33.Which of these needs a heat insulator? (a) a magnifier lens (b) a water tank (c) a roof sheet (d) an oven glove
  34. 34.Which of these needs a waterproof material? (a) an oven glove (b) a hair band (c) a plug pin (d) an umbrella cover
  35. 35.🧱 Which property matters most for a boat hull? (a) flexible (b) electrical conductor (c) heat insulator (d) waterproof
  36. 36.🧱 Which property matters most for a yoga mat? (a) flexible (b) transparent (c) electrical conductor (d) waterproof
  37. 37.Which of these needs an electrical conductor? (a) a window pane (b) a raincoat (c) a roof sheet (d) a switch contact
  38. 38.True or false: a raincoat needs an electrical conductor. (a) True (b) False
  39. 39.🔍 Which is the odd one out? (a) copper (b) plastic (c) aluminium (d) steel
  40. 40.True or false: a water tank needs a waterproof material. (a) True (b) False

Answer key

  1. aluminium
  2. a tea flask lining
  3. steel
  4. transparent
  5. True
  6. glass
  7. a conductor
  8. plastic-coated cloth
  9. copper
  10. waterproof
  11. an insulator
  12. clay pottery
  13. iron
  14. wood or plastic
  15. a conductor
  16. waterproof
  17. False
  18. glass
  19. a window pane
  20. a yoga mat
  21. a water tank
  22. a conductor
  23. False
  24. copper
  25. dry wood
  26. False
  27. a cooking pot handle
  28. rubber
  29. heat insulator
  30. True
  31. a spectacle lens
  32. electrical conductor
  33. an oven glove
  34. an umbrella cover
  35. waterproof
  36. flexible
  37. a switch contact
  38. False
  39. plastic
  40. True

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