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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 456 · 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.True or false: a skipping rope needs a flexible material. (a) True (b) False
  2. 2.True or false: a window pane needs a waterproof material. (a) False (b) True
  3. 3.True or false: a yoga mat needs a flexible material. (a) False (b) True
  4. 4.Which of these needs a heat insulator? (a) a magnifier lens (b) a water tank (c) an oven glove (d) a skipping rope
  5. 5.🔍 Which is the odd one out? (a) copper (b) plastic (c) clay pottery (d) dry wood
  6. 6.Which of these needs a heat insulator? (a) a car seat belt (b) a cooking pot handle (c) a window pane (d) a roof sheet
  7. 7.🧱 Which property matters most for a hair band? (a) transparent (b) heat insulator (c) waterproof (d) flexible
  8. 8.🧱 Is brass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  9. 9.🧱 Is graphite an electrical conductor or an insulator? (a) a conductor (b) an insulator
  10. 10.True or false: a plug pin needs an electrical conductor. (a) False (b) True
  11. 11.🧱 Is clay pottery an electrical conductor or an insulator? (a) a conductor (b) an insulator
  12. 12.🧱 Which material is best for a raincoat? (a) cardboard (b) cotton wool (c) paper (d) plastic-coated cloth
  13. 13.True or false: a magnifier lens needs a transparent material. (a) True (b) False
  14. 14.Which of these needs an electrical conductor? (a) a water tank (b) a boat hull (c) a plug pin (d) a roof sheet
  15. 15.🧱 Which material is best for the core of an electric wire? (a) glass (b) rubber (c) copper (d) wood
  16. 16.True or false: a raincoat needs an electrical conductor. (a) False (b) True
  17. 17.True or false: a water tank needs a waterproof material. (a) True (b) False
  18. 18.True or false: the core of a wire needs an electrical conductor. (a) False (b) True
  19. 19.🧱 Which property matters most for a window pane? (a) heat insulator (b) electrical conductor (c) transparent (d) waterproof
  20. 20.Which of these needs a waterproof material? (a) the core of a wire (b) a skipping rope (c) a water tank (d) a window pane
  21. 21.🧱 Which material is best for a window pane? (a) brick (b) wood (c) glass (d) steel
  22. 22.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
  23. 23.🧱 Which property matters most for a skipping rope? (a) heat insulator (b) flexible (c) electrical conductor (d) transparent
  24. 24.True or false: a boat hull needs a waterproof material. (a) True (b) False
  25. 25.Which of these needs a transparent material? (a) a raincoat (b) a car windscreen (c) an umbrella cover (d) a cooking pot handle
  26. 26.🧱 Is cotton cloth an electrical conductor or an insulator? (a) a conductor (b) an insulator
  27. 27.🧱 Which property matters most for a roof sheet? (a) heat insulator (b) electrical conductor (c) waterproof (d) transparent
  28. 28.🧱 Which property matters most for a cooking pot handle? (a) flexible (b) electrical conductor (c) waterproof (d) heat insulator
  29. 29.🔍 Which is the odd one out? (a) graphite (b) iron (c) dry wood (d) brass
  30. 30.🔍 Which is the odd one out? (a) plastic (b) graphite (c) brass (d) aluminium
  31. 31.🧱 Which material is best for a cooking pot handle? (a) aluminium (b) copper (c) wood or plastic (d) iron
  32. 32.Which of these needs a waterproof material? (a) a hair band (b) the core of a wire (c) a raincoat (d) a spectacle lens
  33. 33.🔍 Which is the odd one out? (a) steel (b) rubber (c) iron (d) aluminium
  34. 34.🧱 Which property matters most for a tea flask lining? (a) electrical conductor (b) flexible (c) heat insulator (d) waterproof
  35. 35.True or false: a cooking pot handle needs a heat insulator. (a) True (b) False
  36. 36.🧱 Which property matters most for a water tank? (a) heat insulator (b) waterproof (c) flexible (d) transparent
  37. 37.🧱 Which material is best for the bars inside concrete? (a) glass (b) steel (c) plastic (d) rubber
  38. 38.🧱 Which property matters most for a yoga mat? (a) heat insulator (b) waterproof (c) transparent (d) flexible
  39. 39.🧱 Which property matters most for a plug pin? (a) waterproof (b) electrical conductor (c) flexible (d) transparent
  40. 40.🔍 Which is the odd one out? (a) glass (b) rubber (c) iron (d) cotton cloth

Answer key

  1. True
  2. False
  3. True
  4. an oven glove
  5. copper
  6. a cooking pot handle
  7. flexible
  8. a conductor
  9. a conductor
  10. True
  11. an insulator
  12. plastic-coated cloth
  13. True
  14. a plug pin
  15. copper
  16. False
  17. True
  18. True
  19. transparent
  20. a water tank
  21. glass
  22. a conductor
  23. flexible
  24. True
  25. a car windscreen
  26. an insulator
  27. waterproof
  28. heat insulator
  29. dry wood
  30. plastic
  31. wood or plastic
  32. a raincoat
  33. rubber
  34. heat insulator
  35. True
  36. waterproof
  37. steel
  38. flexible
  39. electrical conductor
  40. iron

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