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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 573 · 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 copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  2. 2.🧱 Which material is best for a cooking pot handle? (a) wood or plastic (b) copper (c) iron (d) aluminium
  3. 3.Which of these needs a waterproof material? (a) a skipping rope (b) a tea flask lining (c) an oven glove (d) a boat hull
  4. 4.🔍 Which is the odd one out? (a) clay pottery (b) glass (c) iron (d) rubber
  5. 5.🧱 Which material is best for the bars inside concrete? (a) glass (b) steel (c) plastic (d) rubber
  6. 6.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
  7. 7.True or false: the core of a wire needs an electrical conductor. (a) False (b) True
  8. 8.Which of these needs a transparent material? (a) a raincoat (b) a car windscreen (c) a cooking pot handle (d) a water tank
  9. 9.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  10. 10.True or false: a spectacle lens needs a flexible material. (a) False (b) True
  11. 11.🧱 Which material is best for a raincoat? (a) plastic-coated cloth (b) cotton wool (c) cardboard (d) paper
  12. 12.🧱 Which property matters most for a switch contact? (a) heat insulator (b) flexible (c) transparent (d) electrical conductor
  13. 13.🔍 Which is the odd one out? (a) graphite (b) clay pottery (c) glass (d) dry wood
  14. 14.🧱 Which material is best for the core of an electric wire? (a) wood (b) rubber (c) glass (d) copper
  15. 15.Which of these needs a transparent material? (a) a boat hull (b) an umbrella cover (c) a hair band (d) a window pane
  16. 16.Which of these needs a flexible material? (a) a yoga mat (b) a car windscreen (c) a tea flask lining (d) an oven glove
  17. 17.🧱 Which property matters most for a boat hull? (a) electrical conductor (b) heat insulator (c) transparent (d) waterproof
  18. 18.🧱 Is brass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  19. 19.🧱 Is aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
  20. 20.🧱 Which property matters most for a roof sheet? (a) transparent (b) heat insulator (c) electrical conductor (d) waterproof
  21. 21.True or false: a skipping rope needs a waterproof material. (a) True (b) False
  22. 22.Which of these needs a heat insulator? (a) a tea flask lining (b) a skipping rope (c) a boat hull (d) an umbrella cover
  23. 23.🧱 Which material is best for a window pane? (a) brick (b) wood (c) glass (d) steel
  24. 24.True or false: a skipping rope needs a transparent material. (a) True (b) False
  25. 25.🔍 Which is the odd one out? (a) aluminium (b) iron (c) brass (d) dry wood
  26. 26.🔍 Which is the odd one out? (a) rubber (b) aluminium (c) glass (d) dry wood
  27. 27.Which of these needs a flexible material? (a) a window pane (b) a car seat belt (c) a cooking pot handle (d) the core of a wire
  28. 28.True or false: a raincoat needs a heat insulator. (a) True (b) False
  29. 29.🔍 Which is the odd one out? (a) iron (b) rubber (c) copper (d) brass
  30. 30.🧱 Is glass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  31. 31.True or false: a window pane needs a flexible material. (a) True (b) False
  32. 32.🧱 Which property matters most for a skipping rope? (a) heat insulator (b) electrical conductor (c) flexible (d) waterproof
  33. 33.🧱 Is cotton cloth an electrical conductor or an insulator? (a) a conductor (b) an insulator
  34. 34.🧱 Which property matters most for a yoga mat? (a) electrical conductor (b) flexible (c) transparent (d) heat insulator
  35. 35.True or false: an oven glove needs a heat insulator. (a) True (b) False
  36. 36.🧱 Is graphite an electrical conductor or an insulator? (a) an insulator (b) a conductor
  37. 37.🧱 Which property matters most for a raincoat? (a) flexible (b) waterproof (c) heat insulator (d) transparent
  38. 38.Which of these needs a waterproof material? (a) a switch contact (b) a raincoat (c) the core of a wire (d) a plug pin
  39. 39.🔍 Which is the odd one out? (a) clay pottery (b) copper (c) dry wood (d) plastic
  40. 40.Which of these needs a heat insulator? (a) a water tank (b) a switch contact (c) a magnifier lens (d) an oven glove

Answer key

  1. a conductor
  2. wood or plastic
  3. a boat hull
  4. iron
  5. steel
  6. a conductor
  7. True
  8. a car windscreen
  9. a conductor
  10. False
  11. plastic-coated cloth
  12. electrical conductor
  13. graphite
  14. copper
  15. a window pane
  16. a yoga mat
  17. waterproof
  18. a conductor
  19. a conductor
  20. waterproof
  21. False
  22. a tea flask lining
  23. glass
  24. False
  25. dry wood
  26. aluminium
  27. a car seat belt
  28. False
  29. rubber
  30. an insulator
  31. False
  32. flexible
  33. an insulator
  34. flexible
  35. True
  36. a conductor
  37. waterproof
  38. a raincoat
  39. copper
  40. an oven glove

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